Topica Loopframe_Guzzi Archive


Subject: Re: Eldo Project started - Tranny reshimming - help with input shaft

Author: Tom Christian

Date: Feb 21, 2005, 10:17 AM

Post ID: 1718429144



I have the old nut, it was staked, but difficult to tell
how well oringnally as it did unwind as it chewed through,
raising the "stake" up.

On Mon, 21 Feb 2005 18:10:41 +0000
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Hi Tom,

I suppose that is one possibility. Looking at the nut,
were you able to
see where it was staked? I would think that a lack of
staking - or a
failed staking - would be the most likely culprit.

Tom Christian wrote:
 
Thanks for the hints guys - put it up on blocks, a good
whap or 3 and it was out. Just too chicken to hit it
hard
enough the first time.

Interesting find though in the disassembly, the rear
cover
had been put on with no gasket, and the rear layshaft
nut
came off pretty easily, as did the Clutch Boss nut.

Everything I've read says shim w/o the gasket, then add
the gasket on final assembly as this allows for heat
expansion. Could this have been the cause of the
original
issue with the layshaft retainer nut - heat expansion
causing it to rub against the case?

-tom

On Mon, 21 Feb 2005 06:45:37 -0800
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Oddly, the one that I fixed had an input shaft that
took
 a few good whacks to get out. Makes sure all fastenings
are off, putt down some padding, set the tranny on the
flange for the rear cover, and whack it with a plastic
hammer.

GF

On Monday, February 21, 2005, at 04:50 AM, tom
christian
 wrote:

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Any thoughts on why the input shaft is being so
stubborn?

On Sun, 20 Feb 2005 17:03:03 -0800
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 If it shifted OK before, no need to reshim the
shafts.
 
 
 I repaired one just like you describe (hole punched
through case)
last fall. Just tighten everything well, and it
should
 
 
 work if it was
working. In your case, the nut on the aft end of the
shaft may also
have been loose, causing the crunchy shifting. Take
out
 
 
 the output
shaft and make damn sure you have the front, ccw
tightening, nut
fully seated. Use red loctite on it and punch it
thoroughly to
prevent loosening. Then shim the drum.
GF
On Sunday, February 20, 2005, at 02:52 PM, tom
christian
 
 
 wrote:
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The long story as short as possible - last spring I
bought my '74
disc Eldo Police and after a few miles the forward
layshaft nut
chewed through the tranny case (last year). I tried
the
 
 
 
 quick fix -
attaching a new nut through the chewed hole and
sealing
 
 
 
 the hole up
with scrap aluminum and JB Weld - and the tranny
made
 
 
 
 godawful
noises when shifting up from first as it
transitioned
 
 
 
 neutral - so I
put it away.

Just getting around to starting the project now -
so,
 
 
 
 using Pete
Ropers DIY article from guzzitech on shimming as a
reference I
pulled the tranny apart today - and it all looks
brand
 
 
 
 spanking new.
Nothing broken, no metal bits. The input shaft is
not
 
 
 
 coming out,
even after a few taps. Before I go wailing on it, I
thought I'd
check to see if there's something I missed - it
feels
 
 
 
 like its still
"locked" in place - I removed the nut, tang washer
and
 
 
 
 Boss. Also
interesting, I only found one hardened washer under
the
 
 
 
 pegnut on
the speedo, not under the drive itself?

If anyone has any hints on what to look for, and
reshimming the 3
shafts (not just the drum), certainly appreciated.

Thanks, -tom

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Regards,

Greg Bender
1971 Ambassador
2000 Quota
http://www.thisoldtractor.com/gtbender

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