Author Topic: Pushrod problem!!  (Read 2955 times)

Offline Cider1

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Pushrod problem!!
« on: 01.11. 2011 17:14 »
Hi
I've been having some issues with clutch adjustment on my '58 Flash.  Do you think that this pushrod could be the cause of the problem?

Only joking.  This is the lever end of the rod which I'm about to replace.  I think this is down to not having a hardened end, if you pardon the expression!!!

Cheers
Frank

Offline muskrat

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Re: Pushrod problem!!
« Reply #1 on: 01.11. 2011 19:18 »
But if you push it through the mainshaft the other way it should straighten out. *eek* *eek*
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
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Online RichardL

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Re: Pushrod problem!!
« Reply #2 on: 01.11. 2011 22:29 »
I wonder if there will be any discoloration on the ends of the new rod to indicate they have been hardened? Couldn't you just grind this down and harden it yourself with a mineral or fish oil quench?

By the way,  Frank,  I think it's been some time since you've been on,  so welocme back.  How's that music career doing?

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.

Offline Cider1

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Re: Pushrod problem!!
« Reply #3 on: 02.11. 2011 12:32 »
Hi Richard
The old rod doesn't look as though it was hardened.  I know the new one has because I've just done it.
The music career has slowed down a bit recently because our singer decided that after 16 years and over 800 gigs he wanted to do something different so at the moment we are busy auditioning for a replacement.  Watch this space!!

cheers
Frank  *beer*

Offline dpaddock

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Re: Pushrod problem!!
« Reply #4 on: 19.11. 2011 17:36 »
Frank -
Are you sure you have a steel rod there? Is the steel ball still embedded in the end of the adjusting screw? I've never seen a pushrod end deformed that way. There's a serious other problem involved here if that's a steel rod and the other pieces are proper. In fact, the axial force on a steel pushrod is well below the force needed to deform it (except for the small indentation made by the adjusting screw ball).

David
David
'57 Spitfire


Online bsa-bill

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Re: Pushrod problem!!
« Reply #5 on: 19.11. 2011 19:30 »
Quote
we are busy auditioning for a replacement.  

"Tra la la twiddle de dee dee" - "I was lost in France?" - "tie me kangaroo down mate" - oh nearly forgot "Men of Harlech "

OK I suppose you'll let me know  *contract* *whistle*
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Offline Cider1

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Re: Pushrod problem!!
« Reply #6 on: 22.11. 2011 15:44 »
Hi David
It was definitely a steel rod.  I don't know what type of steel but I don't think it was hardened.  The replacement that I've made works very well.  I can now select 1st gear with no clunk and even get neutral easily with the engine running.

Hi Bill

Quote
"Tra la la twiddle de dee dee" - "I was lost in France?" - "tie me kangaroo down mate" - oh nearly forgot "Men of Harlech "

Thanks for auditioning but you're too late, the vacancy has been filled.  We're now busy rehearsing getting ready to start gigging again in the early new year.

Cheers
Frank   *smile*  *beer*


Offline LJ.

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Re: Pushrod problem!!
« Reply #7 on: 22.11. 2011 16:59 »
Looking at that rod...  It might be a good idea to see if you can fish out any bits of broken off steel by using one of those telescopic magnets. You wouldn't want any bits to get in the speedo gearing.
Ride Safely Lads! LJ.
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1961 BSA A10  650cc Golden Flash-Red

Offline mrshells

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Re: Pushrod problem!!
« Reply #8 on: 08.04. 2012 18:41 »
any one the correct measurement for the length of the  pushrod lease ?

Offline chaterlea25

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Re: Pushrod problem!!
« Reply #9 on: 08.04. 2012 19:37 »
Hi MrShells,
It depends on which type of clutch is fitted ??
I just buy a 13" length of silver steel from my local engineering supplier and make my own
That way you can adjust the length so as to get the clutch arm at the correct angle etc which gives a better clutch action
HTH
John O R
1961 Super Rocket
1963 RGS (ongoing)

Offline trevinoz

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Re: Pushrod problem!!
« Reply #10 on: 08.04. 2012 22:37 »
Hi John,
                 Do you harden the ends on your pushrods?
I make them out of bright shafting and harden the ends with "Hardite".

 Trev.

Offline wilko

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Re: Pushrod problem!!
« Reply #11 on: 08.04. 2012 23:44 »
This has only happened because of constant contact, instead of having freeplay. Even mild steel wouldn't do this if adjusted correctly or you hold the clutch in at every set of lights!

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Re: Pushrod problem!!
« Reply #12 on: 09.04. 2012 12:38 »
I used to use casenit, but I have not been able to find any for a long time.
Out of curosity Trev where do you get Hardenite from now days in out risk adverse world?
Bike Beesa
Trevor

Online RichardL

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Re: Pushrod problem!!
« Reply #13 on: 09.04. 2012 12:49 »
Wilko,

Disagree,  soft ends most likely cause.  Sitting at light with clutch pulled in will not increase likelihood of mushrooming like this.  Greatest stress on ends is when clutch is activated,  not when sitting there with the pressure plate (edit: and rod) at rest. Lack of lubrication at rod end may lead to overheating and,  thus, annealing, (edit:  ...though, this is the lever end.)
 
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.

Offline mrshells

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Re: Pushrod problem!!
« Reply #14 on: 09.04. 2012 13:17 »
trev its a 6 spring clutch in a 1947 rigid
Sorry about the spelling