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

To: "dave" <daveandlindab@comcast.net>, "'Todd Osborn'"
Subject: Re: [Roadsters] U-20 Upper Tensioner Diameter?
From: "MH" <twobeaners@earthlink.net>
Date: Sun, 22 Feb 2009 13:40:19 -0600
I've been meaning to ask this question before, when the subject of shimming
chain tensioners has come up. Is there the same benefit of doing this on the
R16 timing chain tensioner?
Mike Hudson  '67 - Stroker / 5-speed


----- Original Message ----- 
From: "dave" <daveandlindab@comcast.net>
To: "'Todd Osborn'" <todd.osborn@sbcglobal.net>; "'Roadster List'"
<datsun-roadsters@autox.team.net>
Sent: Sunday, February 22, 2009 1:10 PM
Subject: Re: [Roadsters] U-20 Upper Tensioner Diameter?


> 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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