Same engine, different Spec!!!
This could be answered by the division of the company at the time. Since the
two divisions were separate, they were free to set their
own tolerances and that one might have been deemed by MG to be too wide.
I personally agree that the Spitfire Spec was a bit too wide. I like to apply
the closer tolerances of the early Spitfire engines to
The Thrust washers of the 1500.
Joe
"Graziano, Michael" wrote:
>
> Interesting. I wonder why the specs are different for the Spits and the
> Midgets. My endfloat is 0.010" exactly on a brand new engine, read very
> little wear. Any ideas on what differences between the two engines can
> account for the different endfloat? I seem to remember someone telling me
> the cranks are different. Can anyone verify that?
>
> Mike
>
> -----Original Message-----
> From: Dave Chu [mailto:dave@ece.concordia.ca]
> Sent: Monday, September 18, 2000 1:10 PM
> To: James F. Libecco
> Cc: Spit
> Subject: Re: thrust washers
>
> In message <LPBBKFMJFGDNGIOEHPHAKECBCBAA.jfl@neoucom.edu>you write:
> >
> >NEEDED: What is the proper clearance for the thrust washers? I have seen
> >three specs from .002 through .018. Somewhere a proper number must exist.
> >
> >I have had to put two new cranks into this car in the past two months and
> >quite frankly am tired of putting money into this after thrust washer
> >expulsions.
> >
> >Any suggestions to save my 76 1500?
>
> According to the Bentley manual, the crankshaft end-float should be
> in between .004-.008" (.102-.203mm) for 75-80 1500 Spits.
>
> Standard thrust washers are .091-.093" (2.31-2.36mm), and oversize ones
> are .096-.098" (2.44-2.49mm).
> Dave |\ | | |
> _______________________________________/\ /\ /\_____| \|_____|
> |____________
> Dave Chu \/ \/ | /| | |
> Dept. of Elec. & Comp. Eng. |/ | | |
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> 1455 de Maisonneuve W. H961 Email:dave@ece.concordia.ca
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