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broken first gear bush

Clutch, Transmission, Drive Chain, Sprockets
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jensen
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Posts: 1143
Joined: Tue Feb 12, 2008 2:51 pm
Location: netherlands, huizen
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broken first gear bush

Post by jensen » Fri Sep 17, 2010 5:43 pm

Hi,

Today I started working on an engine with a bad trans. I thought I saw it all, but this trans was a mixture of nice parts and very worn parts. I'm almost sure the engine was original, as it seemed that it was never opened, and had the standard pistons in it with low wear. The crank was perfect, as were the cases.

Pictures of the bad and good parts :
Attachments
nice dogs (but not) .JPG
another welded sprocket.JPG
bushing is broken.JPG
other side of it.JPG
Last edited by jensen on Fri Sep 17, 2010 5:53 pm, edited 1 time in total.
assembly of Japanese motorcycles requires great peace of mind (Pirsig)

jensen
honda305.com Member
Posts: 1143
Joined: Tue Feb 12, 2008 2:51 pm
Location: netherlands, huizen
Contact:

Post by jensen » Fri Sep 17, 2010 5:47 pm

and some more pics :
Attachments
bearing era.JPG
pitting in the main shaft gear.JPG
severe damage _2.JPG
severe damage.JPG
were are the other parts gone .JPG
assembly of Japanese motorcycles requires great peace of mind (Pirsig)

jensen
honda305.com Member
Posts: 1143
Joined: Tue Feb 12, 2008 2:51 pm
Location: netherlands, huizen
Contact:

Post by jensen » Fri Sep 17, 2010 5:52 pm

and more :
Attachments
amazinly good kick starter shaft, and within specs.JPG
this is the other side.JPG
in perfect shape.JPG
another holed one.JPG
good shaft indeed.JPG
assembly of Japanese motorcycles requires great peace of mind (Pirsig)

LOUD MOUSE
honda305.com Member
Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Re: broken first gear bush

Post by LOUD MOUSE » Fri Sep 17, 2010 7:50 pm

For sure that trans has "been around the world".
Mistreated and broke.
For sure it was at one time built to be a completion engine? (brazed cam sprocket advance weights)
A good question may be for what competition.
What's with the next to last pic?
Amy idea there feller?. ........lm

jensen wrote:Hi,

Today I started working on an engine with a bad trans. I thought I saw it all, but this trans was a mixture of nice parts and very worn parts. I'm almost sure the engine was original, as it seemed that it was never opened, and had the standard pistons in it with low wear. The crank was perfect, as were the cases.

Pictures of the bad and good parts :

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