Doug,
I don't have an accurate measuring device for these type of things but a
collection of feeler gauges adding up to 50 thou' appears to be the same
thickness as the step on the crankshaft bearing cap that holds the thrust
washers in. That's more than enough warning that they need replacing.
Simon.
To: Simon Halliwell/e/POSTOFFICE@POSTOFFICE
cc:
Hard Copy To:
Hard Copy cc:
Date: 18/09/2000 14:53
From: Douglas Braun & Nadia Papakonstantinou
<dougnad@bellatlantic.net>
Subject: Re: End float measurement
The washers are made of bearing material that is designed to wear.
Besides, there is twice as much crank surface to wear compared
to the washer surface. So I would bet that 95% of
the wear happens to the washers, not the crank.
Also, given that the washers are cheap,
I would simply buy a stock set of washers, unless you were planning
to machine the crank anyway.
Doug Braun
'72 Spit
P.S.: I measured my endfloat and also got .012" I would
be interesting in knowing how much these washers need to
wear before they would be likely to fall out of place.
Can you estimate the height of the step that keeps
them from rotating?
At 03:03 PM 9/18/00 +0000, you wrote:
>Hi All,
>
>Can anyone recommend the best way to measure end float on the crankshaft so I
>can gauge the size of thrust washers I need to put in?
>
>The engine is from a Mk3, it is on the bench completely stripped down. Before
I
>removed the crank the end float measured about 12 thou' but I don't know how
>worn the thrust washers are. Am I best getting some standard size thrust
>washers and measuring the end float with them in or is there a more scientific
>method?
>
>Many thanks,
>
>Simon.
>
>1967 Mk3 Spitfire
>
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