pjrose at frontiernet.net
Tue Jan 27 10:56:51 EST 2004
At 7:01 AM -0800 1/27/04, Bernie Benz wrote:
>Bentley says tight enough that you can just twist its longest span 1/4 turn.
>This is not quite tight enough, IMO.
I'll assume that you have "cured" (one or more) distributor rattle
situations by retightening the timing belt to just beyond that "1/4
turn" spec? Of course the basic problem with Audi's (and most other)
belt-tightening specs, is the lack of an objective means to establish
the force--torque in this case--to be used. Over time...and many
t-belt jobs...one presumably gets the required "feel" for belt
tension, but otherwise...it's a pretty darn vague kind of spec.
Ingolstadt's assembly line possibly has a specialist (Karl, the
300-lb Monkey Lad) who does nothing all day but twist timing belts.
P.S. I used my own personal version of that "1/4 turn spec" for the
t-belt I replaced on the red car, last year; and there's been no
significant distributor rattle. However it did rattle a lot before
the belt change, and the old belt did seem quite loose.
Phil Rose Rochester, NY USA
'91 200q (140K, Lago blue)
'91 200q (64K, Tornado red) mailto:pjrose at frontiernet.net
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