Author Topic: GB is not OK!  (Read 5403 times)

Offline tlmark

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Re: GB is not OK!
« Reply #75 on: 26.05. 2018 21:18 »
Putting my rebuild to shame  *yeah*

Online Greybeard

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Re: GB is not OK!
« Reply #76 on: 26.05. 2018 21:24 »
Dynamo belt kit ordered from Dynamo Regulators.

Online muskrat

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Re: GB is not OK!
« Reply #77 on: 26.05. 2018 21:30 »
G'day GB.
The joys of retirement hay. You can be as quick or slow as you like.
Cheers
'51 A7 plunger, '57 A7SS now A10CR, '76 XT500, '77 AG175 '83 CB1100F, '81 CB900F project.
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Online KiwiGF

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Re: GB is not OK!
« Reply #78 on: 26.05. 2018 21:54 »
I don't know if I should create a fresh thread, but. I'm cleaning bits-n-bobs. I've removed the spring loaded check valve in the timing side case. I missed that when I restored the engine six years ago. The bits all looked good but I'm going to order a new ball and spring. I understand that I should lightly tap the ball into its seat to make sure the seal is as good as possible.

I was wondering if I should pull the oil suction pipe out to clean the galleries more thoroughly. Is the top end locked into the case with a glue?

In my limited experience the suction pipe is glued in. If it’s heated it should come loose as the glue softens. I used loctite bearing retainer to glue mine back in. An easy job.

Yes I’d lightly tap the ball, but I don’t think that will do much it’s difficult to see how the seat could wear and then not seal!
New Zealand

1956 A10 Golden Flash EA7-168x, CA10 913x, left BSA together for Liverpool, 5th Dec 1955.

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Online muskrat

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Re: GB is not OK!
« Reply #79 on: 26.05. 2018 22:22 »
RichardL uses a different method. Glues a ball to a stick and laps the seat with paste. If doing it that way I'd only use Brasso and clean thoroughly after.
I buy two balls  *whistle* and use one to tap (just a very light tap) the seat and throw it away (or keep for next time) and use the other.
Cheers
'51 A7 plunger, '57 A7SS now A10CR, '76 XT500, '77 AG175 '83 CB1100F, '81 CB900F project.
Australia
Muskys Plunger A7

Online Triton Thrasher

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Re: GB is not OK!
« Reply #80 on: 26.05. 2018 22:28 »
Quote from: Greybeard[/quote

Are you talking about more extreme cams than my 67-356?

If you only hear good reports about the 356, then you’ll probably be happy with it too. Its having been original equipment on the Super Rocket (if I’ve got that right) is a good sign too.

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Re: GB is not OK!
« Reply #81 on: 26.05. 2018 22:40 »
it’s difficult to see how the seat could wear and then not seal!
The ball and spring are in a larger bore hole so the ball has to find it's own seat. Over time the spring weakens, the ball isn't hitting the seat square on and can wear off center. Mine lasted about 30 years (good for the first 29) but leaks like a sieve now.
Cheers
ps: add to that all the fine debris (all that stuff in the sludge trap) being pumped through it.
'51 A7 plunger, '57 A7SS now A10CR, '76 XT500, '77 AG175 '83 CB1100F, '81 CB900F project.
Australia
Muskys Plunger A7

Online Greybeard

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Re: GB is not OK!
« Reply #82 on: 28.05. 2018 10:54 »
Jeez GB, they say that women are good in multitasking but you are the living proof of the contrary...  ;) *smile*
I also do most of the cooking at home!  *good3*

Offline RichardL

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Re: GB is not OK!
« Reply #83 on: 28.05. 2018 15:29 »
RichardL uses a different method. Glues a ball to a stick and laps the seat with paste.

Muskrat,

Thanks for the recognition. My bike has stayed amazingly free of wet sumping since doing this, more than two years ago now. Can't lose sight of the fact that I put in an SRM pump at the same time. Before that work, sitting more than a week, or so, meant draining the sump. Now, months can go by and wet sumping is minimal (not saying zero), with no sump draining required. Also can't say that I didn't just get lucky or that things won't change tomorrow, but, for now, I'm happy with it.

Richard L.
Plan on signing up for the world-wide 2017 DISTINGUISHED GENTLEMAN'S RIDE on September 30, 2018. Watch website at https://www.gentlemansride.com for details.

Online Greybeard

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Re: GB is not OK!
« Reply #84 on: 28.05. 2018 15:43 »
Mine is also pretty good. After months of not running, I checked that there was oil covering the tank filter, started the engine, fast idle, pumped the oil back into the tank.

Online RoyC

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Re: GB is not OK!
« Reply #85 on: 28.05. 2018 15:55 »
Jeez GB, they say that women are good in multitasking but you are the living proof of the contrary...  ;) *smile*
I also do most of the cooking at home!  *good3*
I do ALL of the cooking at home . *sick* *sad2*
My bike is a 1958 A7SS
Stafford UK

Offline RogerSB

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Re: GB is not OK!
« Reply #86 on: 28.05. 2018 16:18 »
Jeez GB, they say that women are good in multitasking but you are the living proof of the contrary...  ;) *smile*
I also do most of the cooking at home!  *good3*
I do ALL of the cooking at home . *sick* *sad2*
I'm rubbish at it. When my wife was out I made a cup of coffee with Bisto once *red*. After drinking half of it I said to my wife 'I don't go much on the new coffee'. Looking surprised she said 'What new coffee?'. When I pointed to it she said 'That's Bisto you fool' *eek*.

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Online Greybeard

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Re: GB is not OK!
« Reply #87 on: 28.05. 2018 16:43 »
I've opened a new Bisto & gravy post in Off-topic

Online Greybeard

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Re: GB is not OK!
« Reply #88 on: 29.05. 2018 14:15 »
Checking the pistons in the bores. Rings are off. I used a block to keep the piston in the normal running area. I can get a 2 thou feeler between the piston skirt and the bore but cannot get a 3 thou feeler in.  My thoughts on this are that if I can get the marked bore honed by say half a thou I may still be ok. Do you agree?

Online berger

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Re: GB is not OK!
« Reply #89 on: 29.05. 2018 14:47 »
depends on how much they take out, but I would say yes, ive seen somewhere that even at 5 or 6 thou you don't get piston slap, but I do know I once used old genuine bsa pistons and got the barrels bored to suit then years later let an engineer talk me into having the bores honed to get the lip out above the rings and one pot developed slap, but I ran it for a couple of summers ticking away and annoying me, when I stripped it the piston was visibly hammered and there was about 8 thou so it depends on your score depth