Hi all,
I'm forwarding this to the list because I'm getting a lot of replies today.
All replies repeat what Bob Moranda says, that shims on the crankshaft are
there for lining up the sprocket gears to reduce side load of the chain. A
simple explanation for the shims escaped me!
Thanks to everyone who replied,
Fred - So. San Francisco
> Subject: Re[4]: story and questions
> Author: Fred Katz
> Date: 3/19/99 3:25 PM
>
> Hi Bob,
>
> Thanks! You're the first one with a good answer. I was uncertain whether a
> certain distance from the block was needed for clearance purposes, or if it
> was an alignment deal between the sprockets. A main reason I asked, was
> because my chain ate the bolts and bracket holding the upper guide in
> place. I wondered if more clearance was needed. But that damage was because
> the chain was flopping around.
>
> Once I get my crankshaft reground and back in, I'll check the side load per >
> your
> method. My main problem was a bad bearing.
>
> Thanks, Fred
> '68 2000
>
> _______________________ Reply Separator ____________________________
> Subject: Re: Re[2]: story and questions
> Author: "Robert Moranda" <bobm@chem.csustan.edu>
> Date: 3/19/99 2:46 PM
>
> The washers are to line up the two sprockets to reduce any side load on the
> chain.I used a straight edge across the face of the two sprockets and
> shimmed the crank sprocket to line up with the jackshaft sprocket. good
> luck. Bob M
> -----Original Message-----
> From: Fred_Katz@ci.sf.ca.us <Fred_Katz@ci.sf.ca.us>
> To: kiplinger@designsol.com <kiplinger@designsol.com>;
> datsun-roadsters@autox.team.net <datsun-roadsters@autox.team.net>; ken
> pletcher <pletch@pacbell.net>
> Date: Friday, March 19, 1999 9:30 AM
> Subject: Re[2]: story and questions
>
>>My U20 has two of those paper thin washers behind the chain sprocket. Does
>>anyone have the clearance measurements between the crank front main face
>>(block face) and chain sprocket, for determining how many washers are
>>needed? I can't find any published information.
>>
>>Fred - So.SF
>>
>>________________________ Reply Separator ______________________________
>>> Subject: Re: story and questions
>>> Author: "ken pletcher" <pletch@pacbell.net>
>>> Date: 3/18/99 7:07 PM
>>>
>>> My 2000 had a second paper thin washer that nobody else has mentioned.
>It
>>> went between the crank and the
>>> chain sprocket.
>>> Ken
>>> DATSTER
>
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