RE: V6 Tensioner

["Sedon, Doug (OD/ORS)" <sedond@domain.elided>]

	-----Original Message-----
	From:	bjanesi@domain.elided [SMTP:bjanesi@domain.elided]
	Sent:	Tuesday, July 06, 1999 9:54 PM
	To:	Sedon, Doug (OD/ORS); alfa-digest@domain.elided
	Subject:	V6 Tensioner

	brad anesi writes:
	+"Sedon, Doug (OD/ORS)" <sedond@domain.elided> writes...
	+
	+>i'd suspect that the belt installed by the p.o. was installed
correctly,
	+and
	+>that it had slipped - simply because it has a zat belt-tensioner.  as
	+the timing
	+>belt wears, it *will* stretch - if the tensioner can't automatically
	+adjust to
	+>compensate, it *will* slip.  i, for one, don't want to be bothered
	+w/manual belt
	+>adjustment, or even czeching of it, for that matter.
	+
	+
	+Hi Doug-  But how does the stock tensioner "automatically" adjust???
	+The variability of the tension is related to oil pressure (old style)
and
	+temperture (new style).  In either case, the setting is fixed when the
	+tensioner is bolted down.  If the belt stretches (it really shouldn't),
	+the tension will decrease regardless of the tensioner.  The tension
will
	+also dramatically decrease when the spring breaks on the new (so-called
	+bullet-proof) tensioner.  But that's a whole different story....
	+
	+Brad Anesi
	+'91 Project 164Q 5-speed
	===============================
	when the belt stretches, a conventional tensioner (mech'l or
oil-pressure) *does* prevent tension from decreasing - it moves to pick up the
slack of the belt.  while a conventional tensioner *is* bolted down, the wheel
is *not* fixed - the spring (or oil pressure) keeps it tight against the belt,
which helps keep the belt tight against the crank & cam pulleys.  this *will*
help keep a belt from yumping a cam tooth (or more).

	dug seed in,
	hoping to keep the pistons from becoming too intimate w/the valves in my
three 3.0's
	;~)

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