Regarding O-rings. Silicone will withstand greater temperature range but
buna has better abrasion resistance - it wears better.

Tom
www.stir-plate.com

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf Of
Alistair Bell
Sent: Sunday, May 09, 2010 8:14 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: throttle body fun

On 9-May-10, at 2:01 PM, Scott Daniel - Turbovans wrote:

>
> a concern I have is that a worn TB will prevent consistent return to
> idle contact on the switch.
> Like half the time it returns when returning to  idle it doesn't quite
> 'reach' and make the switch close properly.
> When I adjust 'em, I check about 6 times that ever time the throttle
> is released, the switch closes.

check, all is well. Shaft was not nearly as worn as my spare throttle
body which I am in process of rebuilding with delrin bushes and new
butterfly.

> I also don't think it ever hurts to lube the throttle body shaft.

check again, Phil's Tenacious oil :)

> ( I either lay that part aside in the engine compartment, or
> best..put it in
> a container, or even clamp it back on the throttle cable so it
> can't get
> lost. )

my magnetic parts dish held all the rest, somehow I forgot the barrel
clamp.

> on that oil o-ring at the breather tower..

I am guessing a silicone O-ring would last longer than the buna, but
I didn't have one, and metric silicone O-rings hard to find around
here, especially since I stopped working in a lab :)

> what fun we are having with our vanagons !
> Scott
> www.turbovans.com

oh, yo can say that again!

alistair