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Re: [Roadsters] U-20 Upper Tensioner Diameter?

To: "'Todd Osborn'" <todd.osborn@sbcglobal.net>, "'Roadster List'"
Subject: Re: [Roadsters] U-20 Upper Tensioner Diameter?
From: "dave" <daveandlindab@comcast.net>
Date: Sun, 22 Feb 2009 14:10:43 -0500
FWIW, Copper sealing washers may be ideal, thin profile and durable.

Dave Brisco

-----Original Message-----
From: Todd Osborn [mailto:todd.osborn@sbcglobal.net]
Sent: Saturday, February 21, 2009 5:42 PM
To: 'Roadster List'
Subject: Re: [Roadsters] U-20 Upper Tensioner Diameter?

>Gordon said:
>0.565" on the tensioner shaft.
>A 9/16" washer has an ID of 0.5625", so probably a little too small.

The nominal ID of a 9/16 washer is 0.594 which gives you about 0.015"
clearance which should be about right. Gordon's right you will need to grind
a flat on one side to fit. I like idea of using Nylon or Delrin; but the
long term service temperature of these materials is fairly low (~200F) so
I'm not sure how they would do in hot oil. Maybe a cut down brass washer?
Todd Osborn (DATSFUN)
San Jose, CA
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