The BSA A7-A10 Forum

Technical => A7 & A10 Engine => Topic started by: Gerry on 11.09. 2014 10:42

Title: Ongoing saga of gerrys a10 (compression)
Post by: Gerry on 11.09. 2014 10:42
OK Guys, Took the plug caps off and wired the lead ends direct to the plugs....seemed to improve the idle but that could be wishful thinking. Checked the slip ring of the mag and absolutely clean and bright brass strip. So off came the tank.....again... and removed the rocker inspection covers and checked the tappet clearance WHATTHA!!!!! I set these with a lot of care and patience and now the right hand inlet is 0.024" should be 0.010" the exhaust is 0.020" should be 0.013" the left hand side all over the place as well....what happened here? So bugger it, took rockerbox off removed the pushrods (straight as), removed the head and placed my palm over the right hand barrel and using my other hand cranked the engine. Couldn't push the kick start too far as the suction on my hand was too much. Did the same on the left hand barrel and could turn the crank over even though there was suction on my palm it was not as much as on the right cyl'. Took the barrel off (difficult) and checked the rings and all seems good. Good clean bore in the barrels, no scoring, no visible problems with the pistons and rings are free and shiny. Looks like I shall be investing in another set of new rings and the alloy head with single carb' manifold bolted on.  Looks like a quick hone to give me the cross hatch pattern to bed in new rings. Would all these problems give me the results I have been getting? Cheers. Geriatric.
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: bsa-bill on 11.09. 2014 11:58
Quote
Couldn't push the kick start too far as the suction on my hand was too much. Did the same on the left hand barrel and could turn the crank over even though there was suction on my palm it was not as much as on the right cyl'. Took the barrel off (difficult) and checked the rings and all seems good.

HI Gerry
No offence mate but in the absence of a compression tester your not going to get to a reliable result from side to side using your palm over the top of the barrel, also if it sucks your hand down the barrel I'm not sure you've a problem there, head back on and thumb over the plug hole might be better.

The brass segment on the maggie slip ring being smooth will stay cleaner I think than the Bakelite bit which is a bit rougher and black so best way is to have a piece of spirit (or petrol if you must) soaked cloth on a lollipop stick or similar pushed onto the slipring and turn it over, not forgetting petrol and high voltage spark together - not good and painful.

Tappet clearance altering, were the locknuts still tight? if so then this needs look at before you proceed, should be adjusted with engine cold, adjust left hand inlet when right hand inlet is fully down and vise versa same for exhaust. (you probably already know this, just covering bases)
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Gerry on 11.09. 2014 15:36
Hi Bill, Thanks mate but I did a test with a compression tester when I first had the weak combustion on the left hand side and both came out reasonably the same!
I have large plates of meat for hands and I can cover the bore and seal it well enough to feel the difference in compression, as I said earlier the right side vacuum was so good I couldn't turn the engine over using my other hand on the kick start but the left side was noticeably weaker and allowed me to push the kick start down with less trouble and no leakage between my hand and the cylinder. All the tappet lock nuts were still tight so I just don't understand where the excessive clearance came from and being on all four tappets means something has settled or I'm bloody losing it!!! (Which wouldn't surprise me) Yeah I will do the slip ring clean once I have got the barrel back on so I can turn it over. Cheers and thanks again. Gerry
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Triton Thrasher on 11.09. 2014 17:42
I'd have set the clearances and tried the bike out.
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: chaterlea25 on 11.09. 2014 22:27
Gerry
see  my reply on your other thread

John
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: wilko on 12.09. 2014 00:43
Just give up.
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Gerry on 12.09. 2014 00:55
Hi John, Now that's another worry, the camshaft and followers! I did check both before assembly and they appeared ok. How thick is the case hardening? I gather it wouldn't be more than 2 or 3 thou' I doubt they would have been nitrided which would give a deeper hardened face. If that is worn through then I have a total strip down....again. There's a lesson here folks, NEVER TAKE THE EASY AND CHEAP WAY IT CAN BE DEARER IN THE LONG RUN. How many of us have "been there, done that" I did check both the followers and cam shaft before assembly and they all looked ok and the same lift on both inlets and both exhausts but who's to say they weren't already worn through the casing. Anyone know the sizes and lift? Yet the combustion on the near side had improved over the original start up. I wouldn't have thought that would happen with worn cams.  As for the pump, I don't get more than a teaspoon of oil in the sump when its been standing for a while. Timing side bush is new and the crank ground. Oh well here we go again...
Hi Wilko, mate I have given that much thought but am not the type unfortunately. When I was 17 I had a 350cc Manx Norton which didn't leak oil all over my legs from the open rockers like it was supposed to. Had low oil pressure which was not caused by the pump and burned out two exhaust cams. Sold it at 23 to buy my wife an engagement ring!!! Never found out what the low oil pressure was caused by and it still has me wondering today, 53 years later...
Cheers. Gerry
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: RichardL on 12.09. 2014 05:09
I think if the cam or followers were worn down by 10 or 15 thou they would look obviously worn and misshapen. Take a good look at the gasket for any leakage paths. Take a flashlight and examine the inner valve springs. Pour mineral spirits in the inlet and exhaust paths to see if the valves leak. Before you disassembled, did you swap the plug leads and pickups?

At this point, before you reassemble, I suggest you use some of that energy to learn how to post photos, and then post a bunch so that those of us who are guessing, and trying to help, can see what you are seeing.

Don't give up. Take a rest, or take some time away from it. These are really simple machines and when the problems are revealed they are usually head slappers. I myself have done so so many times i have a permanent hand impression in my forehead.

Richard L.
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: bsa-bill on 12.09. 2014 13:02
Quote
cam or followers were worn down by 10 or 15 thou

even stranger to think this would happen over such a short period, I imagine the crankcase when the engines running to be a turbulent place with oily mist charging about such that the small end gets enough of it to survive so the camshaft should get a similar lube at least to prevent rapid wear.
Something has moved Gerry or the original tappet setting was not quite right, as has been suggested reset the tappets and try the bike out again.

head slappers - Richard - first time I set the tappets as a young innocent I set them all at once at the same engine position  *red*, such forgiving things these BSAs it still ran :o - in a fashion
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Gerry on 12.09. 2014 13:19
Hi Richard & Bill, Yes one of the followers is really badly worn. I believe they were already down below the hardened surface when I fitted them. although it didn't show and perhaps thats why the excessive wear. I have a friend who overhauls BSA's and they turn out like brand new bikes, how he does it I have no idea cos' I get chips and scratches...probably due to the number of times I have had the thing apart and back together!! I will take some pics' of the followers which I am going to exchange for a set of re profiled and hardened ones from him for $150AU not bad considering how hard they are to find, even in secondhand condition. The head I have re ground the valves in and poured petrol (gas) into the ports and all was good, no leaks after 5 minutes or so. As stated before I had the head faced and the barrel also. 0.007" off the barrel and 0.011" off the head. Also annealed the solid copper head gasket. Now I am going to take a closer look at the camshaft and maybe replace it with either an SRM or get a good secondhand one off the same mate with the followers. I'm hoping this will also get rid of the low compression on the near side cyl'. with a hone and another set of new rings although the present rings look quite good so don't understand why the low compression on that side as bore looks good also, no step and smooth polished finish where the rings travel. Cheers and thanks fellas. Gerry
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: chaterlea25 on 12.09. 2014 21:54
Hi Gerry,
Usually the wear on cam and followers is accompanied by scoring, usually theres a ridge at one side of the cam or followers where they have not been rubbing
Case hardening would be probably 40thou thick (1mm)
As the cylinder has been skimmed make sure the pistons do not hit the head gasket

Inspite or despite of all this I'm still puzzled why it was not running evenly ???? unless the inlet cam was completely worn away *eek*
Cam dimensions depend on which cam is fitted
Cam wear will occur rapidly as there are two hard surfaces involved
small end bushes and so on have a soft bronze bush and a hard pin, they will survive on remarkedly little lube
The cam trough is filled by oil when the prv opens usually when cold at start up , as the engine is runniing oil is thrown from the crank to add to the supply
Did you recon the oil pump? and have the prv checked??

HTH
John
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Gerry on 12.09. 2014 23:40
Hi John, Yes on one follower there is a ridge where the cam didn't touch, a narrow area on one side. I have yet to do a check on the actual cam shaft and am hoping it will be ok. From what I can remember from my old work days case hardening (gas carburising using cyanide) gave a thickness of only about 0.010" if my memory serves me correctly (what memory!!) Later on nitriding was a preffered method due to a deeper hardened surface and less distortion of the item. I am absolutely sure that one follower is stuffed and maybe beyond redemption. When I reassembled the engine after the head and barrel skim I left the plugs out and turned the engine over on the crank to make sure nothing was touching and my current disassembly shows no sign of contact between piston and head or gasket thank goodness. No I didn't recon' the oil pump I just turned it to make sure nothing was stuck or binding and on assembly of the engine no wet sumping, so clearances in the pump are good plus the oil return is healthy also. I distrubed the oil feed line to the rockers on an earlier occasion and got plenty of oil all down one side of the engine so the return is excellent. Cheers. Gerry
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: chaterlea25 on 13.09. 2014 20:50
Hi Gerry,
Hopefully your oil pump is ok, not wet sumping is down to the ball and spring in the crankcase
more so than the pump
As you have had the crank main sorted it "should" be ok now
I would check the PRV and make sure its working and lifting at the correct pressure (cant remember??what)
For the system to work the PRV has to open and supply the cam trough

John
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Gerry on 04.01. 2015 23:30
Hi Guys, Firstly let me wish you all a very happy and prosperous New Year. Secondly I am still getting a problem with not firing constantly on the left hand cylinder. Took the left hand plug cap off the lead and held the lead close to the left hand plug when running on the right side and got a very weak spark, so swapped the plugs left to right and tried again and got a much better spark at the plug and it ran better on both cylinders so went and purchased a pair of new plugs and fitted them. Still the same result, missing intermitently on the left side. Gets better when warm so am taking it out for a run to see what transpires. Wish me luck. Cheers. Gerry.
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: muskrat on 04.01. 2015 23:41
Still sounds like induction bias to me. Running weak/lean on the left if it improves a bit when hot. Pull the plugs after your run put them side by side and take a photo. Post the photo here.
Cheers
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Gerry on 05.01. 2015 03:15
Hi Musrat, Took her for a ride and got back home about an hour ago. Went ok for about 1/2 hr then started to miss on the left hand side and when opened up would not come good on that side until I reduced the throttle opening and opened up slowly. As it got hotter it started to miss even more until I had to stop at the lights when it stopped altogether and would not start at all, so changed the plugs for the second set of new ones (first set put in this morning before the trip). Started on the right side only after a hell of a lot of kicking nothing on the left and while putting my hemet and gloves back on it cut out and wouldn't start no matter what I tried, so luckily I was on a slight down hill slope and coasted till I got to about 10 miles an hour and dropped the clutch and she started on the right side only and did not fire on the left all the way home. Took the plugs out and the left one was as new hadn't caused combustion at all!!! Am now going to check the points when on the left side firing and see if they have closed up at all. Also will replace the pick up on that side. May be I've got soft brushes as I have no idea whether genuine Lucas or otherwise. I have scraped them on a piece of paper and they both leave a mark but only light. I have also cleaned the slip ring and did pick up some crap but not excessive. The wife says "sell the b*#~dy thing!!! I have pulled the plugs earlier and they both looked dark brown on the centre electrode. Cheers. Gerry
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: muskrat on 05.01. 2015 13:18
OK if we're back to ignition. How is it now from dead cold? Swap the pickups and leads. Re-check timing and point gap is same on both sides. Also check the valve clearances, it's getting hot down there.
Cheers
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: trevinoz on 05.01. 2015 20:08
Gerry,
              I would suggest that you see if anyone in your area has a magneto test bench.
I know a bloke in Sydney with one and it is really an eye opener what can be seen while on test, everything from the voltage and current to the firing degree.
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Triton Thrasher on 05.01. 2015 21:01
Check that a brush hasn't slipped sideways when you fitted an HT pickup.
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Gerry on 05.01. 2015 22:26
Hi Guys, Well it appears that the pick-up on the left hand pot has a problem, the mag was overhauled by our local expert, new cam ring, new slip ring, new mini condenser/capacitor under the points after removing the one in the armature, armature coil checked ok, bearings checked ok, points cleaned and reset. Yesterday I got intermittent firing on that side, so changed the pick up and brush and reset the points which were 0.008" not 0.012". Still not firing on that side. It seems the ride I did yesterday worsened the problem which makes it easier to find. Will remove the pick-ups today and clean the slip ring....if the grandkids will leave me alone long enough!! Bloody horn button has been given a real bashing. Good relations with the neighbors is being tested. Just went out and cleaned the slip ring with a petrol soaked piece of rag and the rag came out quite black so looks like the brushes are the problem as before I cleaned it I got absolutely no spark on the left side but after cleaning a good spark occurred. So now I have to source a decent pair of brushes. How do you know if the brushes I get are of the right hardness/softness? Cheers. Gerry
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Gerry on 06.01. 2015 01:31
OK took the pic-ups off checked them for resistance between the brush and the centre electrode of the plug got '0' ohms on both. Swapped the leads and pick-ups from left to right and right to left. Cleaned the slip ring with thinners, rag came out black for three times and then clean. Put all back together and no change!!! Still missing badly at idle but picks up on the left at about 2000 revs!! Have ordered genuine brushes from UK $50AU including postage. Maybe that will cure the problem. Too bloody hot to do any more in the shed. Bush fires everywhere in the hills. Cheers. Gerry
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: groily on 06.01. 2015 06:50
One further easy thing you can do Gerry is to check for continuity between the brass strip on the slipring that you can see with the pick-ups off, and the body of the mag/earth. Should be, say, 5000 ohms typically. Anything from about 4K to 7-ishK ohms is possible. Mega-ohms or Open Line is bad and says the connection from slipring to coil is bad, or the coil has a break (or, just possible, that there isn't a good earth brush connection).  If the coil was rewound as part of the recent work, there shouldn't be a problem, but you never know, stuff happens. Seems as if your low tension side is probably working OK, but worth checking the condenser isn't shorting, especially if it's a steel cb assembly, and also, if it's steel, that the blade spring on the opening point isn't touching the camring in certain circs. That'll kill the low tension stone dead.  You can do a very basic check on the condenser by holding the points open with a bit of something (with the cb off the mag or the centre screw detached) and putting a meter - on its highest resistance scale - across the points. The reading should rise rapidly to Open Line, as the millivolts from the meter charge up the capacitor.  Also, if the pick-ups aren't new, they could be causing a problem. Dare you stick a finger on them, with the engine running (if it will)? Any tingles, let alone visible sparks or arcs, bad. Anyway, good luck with it. Cheers, Bill
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: trevinoz on 06.01. 2015 20:36
Gerry,
              From your post, I think that you didn't have the armature rewound, just removed the capacitor and fitted one at the points.
I don't think that was a good idea, especially if the original wind is still on the armature and is at least 50 years old.
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: beezermacc on 07.01. 2015 13:52
I agree with Trev. How about borrowing a magneto.......?
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: RichardL on 07.01. 2015 14:33
I would think that a good spark on one side and none on the other rules out armature winding as the problem. No?

My own most recent magneto problems included the cam ring slipping due to the eccentric locking pin having rotated to the point where it was not working. The next problem was eccentricity caused by rotating the cam-ring housing 180 degrees from the orientation that previously had been OK. Before discovering either of these problems I had replaced plugs, plug caps and leads and did the cleaning and brush checkup as Gerry did, thinking that was where the problem laid. It seems not, but I got some really good leads and plug caps in the deal. All this said to point at a couple of obscure reasons things don't work.

Richard L.
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: beezermacc on 07.01. 2015 15:52
I would think that a good spark on one side and none on the other rules out armature winding as the problem. No?


Probably, but not necessarily. If a magneto is surviving on original windings various problems can manifest in various guises, not always entirely logically. The reason I suggest swapping the mag is because, regardless of where the fault lies in the mag, at least you know you are barking up the right (or wrong) tree. If the bike suddenly runs fine on a different mag you can decide whether to investigate yourself or send it to be restored properly.
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: RichardL on 07.01. 2015 17:22
 
Quote
If the bike suddenly runs fine on a different mag you can decide whether to investigate yourself or send it to be restored properly.

When I investigate myself, would that be with regard to motorcycle technology, or are we talking something more personal?

Richard L.
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: trevinoz on 07.01. 2015 20:06
This is probably not the case here but I had a friend's T100 giving all sorts of ignition problems. I finally tracked the problem to the slip ring, some genius had fitted a BTH one.
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Gerry on 10.01. 2015 03:38
Hi Guys,.......eurica!!!! Swapped the mag for a recon' unit from my friend who overhauled mine (I decided to not have the armature coil rewound as it read the correct resistance) and couldn't start it at all..bugger. Swapped the leads over and away she went firing on both cylinders without missing a beat. At long last the saga is over....I think. Still got to take her out on a good long run before I can be absolutely sure, but the difference now to what it was is totally different.
NOW I'D LIKE TO THANK YOU ALL FOR YOUR HELP AND SUGGESTIONS, IT REALLY IS APPRECIATED. WHAT A GREAT GROUP OF GUYS YOU ARE. STAY WELL AND RIDE SAFE. KIND REGARDS. GERRY
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: muskrat on 10.01. 2015 07:44
Well that's a big relief for you and us. Shows most problems can be beat with patience and perseverance. Now if you can find time in between fire, thunderstorms and floods, enjoy the rides.
Cheers 
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Gerry on 10.01. 2015 10:28
Hi Muskrat, What a difference to what it has been, what with the sticking carb' slides (2 carbs') head leak (skimmed), wrong engine timing gear (A7 long stroke),
sliders (badly worn inside), electrical problem (no charging), engine complete strip after finding vapor blasting residue in the pressure relief valve, oil tank split and rewelded after finding it full of media blasting grit, wrong head bolts (hex size too large), the front engine plates 1/2" out to the frame, twisted swinging arm, crack between the valve locations in the cast head, frame full of rust holes (discovered by the powder coaters after blasting), wrong rims (stainless from India) and the multiple mag changes I now feel like I have survived the biggest headache ever!!  BUT BOY DOES IT FEEL GOOD TO HAVE SURVIVED THIS NIGHTMARE!! The end result is that after taking it out for a blast round the block today I feel on top of the World. Cheers. Gerry
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: RichardL on 10.01. 2015 14:51
Congratulations Gerry. You have earned the right to enjoy it extensively. Perseverance can be a pain, but does usually pay off.

Richard L.
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Gerry on 11.01. 2015 06:12
Hi Richard, Guys, OK went on a club run today after a pancake breakfast at a club members house, bike running beautifully... Did 110 miles but..... stopped for lunch at a place called Birdwood in the Adelaide hills (no sign of any burned out land) but just before we arrived there she started to miss on one cylinder AGAIN!!! kept going on one cyl' till we got to Birdwood, put her on the stand and remembered I had forgotten to put the spare plugs into the tool box. Checking the bike I found one lead had come unscrewed out of the pick up. Great now I know it isn't a major problem. Replaced it and on the ride home went like a dream until about five miles to go and stopped at the traffic lights she wouldn't change gear!! lever would not move, so continued in third till I got home and parked it in the drive. The wife came out to greet me and shouted look at the oil your dropping on the drive!!! Gearbox oil was pouring out in a stream. So looks like the output seal has shit itself. Too tired to check it out now so put her in the shed for future investigation..lol. I think someone "up there" is trying to tell me an old git like me should be doing something more sedate with my aging body. he he. But all in all a bloody great ride. Cheers. Gerry
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: wilko on 11.01. 2015 21:22
Just give up and sell it! I would.
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Gerry on 11.01. 2015 21:48
Hi Wilko, Yep I guess many would, but that's not me and maybe unfortunately, but I will get this bike running as it should especially after such a good run yesterday, listening to that great exhaust sound. Mind you, your not the first that has suggested that, my wife being the loudest!! Fortunate to most of us there are people out there that start a rebuild, get bored during the process or too busy to continue and sell the parts on. At the age of 16 when I got my first bike, a 33 Ariel 500 Red Hunter, I had no help from anyone in getting it running reliably, but I did in the end after many frustration tears and I guess that's where my will to see things through started and probably my fault finding skills (or lack of).............can't wait to get out the shed on my poor knees. lol Cheers. Gerry
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Gerry on 12.01. 2015 10:26
Hi Guys, Found the problem!!! After removing the clutch plus outer and inner covers and then the gearbox secondary sprocket, removed the circlip and removed the seal....looked ok, I'm getting more and more puzzled. So removed the outer gearbox cover complete with kick-starter and gear lever, once off the gear lever was as free as but the selector fork was jammed tight and wouldn't move. Then noticed this rod was jammed hard against it??? he he some silly bugger tightened the selector rod grub screw but not in the groove in the rod, so the rod slowly moved across until it jammed the selector fork and at the same time left its location in the case allowing all the oil to drain out. So chucked the grub screw and used a modified shcs with reduced end which now sits snugly into the selector rod groove. Also removed the silly domed head drain bolt and fitted a standard whitwoth 5/16" set screw (got a deeper hex for the socket) Now all I have got to do is put it all back together. Cheers. Gerry
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: duTch on 12.01. 2015 11:20

 Hey Gerry, I haven't had anything to input for a while, and no good heckle openings(weeeeelll..not much!! *shh*), but have kinda seen the saga and am happy for you that you had a decent jaunt out......and weren't too far from home when the gears went spazzo......but at least you found problem easy...lets hope it's all up from here.!!!!

 *wink2* *wink2*
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Gerry on 12.01. 2015 22:06
Hi Dutch, Yeah was puzzling for a while and then when the gear cover came off didn't take long to gather what had happened. But the ride was great, it sounds and goes really great and a pleasure to handle. I'm just itching to get it back together and go for another ride. As they say "patience is a virtue" lol. Gerry
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Gerry on 06.02. 2015 05:59
Well, made two paper gaskets and replaced inner cover lining up the pop marks on the case and selector fork (or so I thought) put the outer case on, filled her with oil and went for a ride.....started out ok but on selecting second I got a neutral, tried again and still neutral even though I could feel the gear change. Came home, took the outer cover off and low and behold, when in neutral the dots were not in line dohhh!!! Off comes the inner cover again and this time aligned the dots properly before easing the inner cover back on with another new gasket. Checked the dots all ok. Put all back together and this time everything worked as it should. Thinking about it, when putting the clutch back together after the selector shaft incident I noticed that when I tightened the mainshaft nut the inner clutch hub was not as free as I thought it should be. It seemed to be binding against the outer drum. Would this be the cause of difficulty finding neutral? Could the clutch rollers be too long? Cheers. Gerry
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: duTch on 06.02. 2015 09:37
 Geez Gerry, I realized I've lost track on if yours is S/A or plunger, when you said 'dots to align' it''s a S/A..and rollers suggests fourspring clutch...?..which puts it out of my league- might be time to go to clutch and box department, can't think of anything offhand.. *beer*
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: Gerry on 06.02. 2015 11:54
Hi Dutch, Yes its a 59 swinging arm job with a four spring clutch. As you suggest I shall continue elsewhere. Cheers. Gerry
Title: Re: Ongoing saga of gerrys a10 (compression)
Post by: chaterlea25 on 06.02. 2015 21:05
HI Jerry
Clutch rollers should be .225 long
0.250 long rollers will make the clutch bind as you describe

HTH
John