hue wong wrote:
Hi all!
Just had a chance to chek the reading and it looks
like it's exactly 5 degrees off.
(if the mesurement is: the mark on the cam guide
collar and top notch on the bearing tower at 3' oclock
are aligned and are supposed to match/lineup with the
top post/nub/zero degrees on the bottom timing gauge
on teh crankcase housing?)
And if this is bad, then How hard and what exactly is
the procedure to swap out the timing chain?
Is is a timing chain swap, or do sprockets and
tensioners and railguides, ect need to be swapped out
as well!
Well if you're talking about a 61x.9x engine with 5 degrees of stretch
you have time to plan and carry out the change when it's convenient (if
you have a 60x engine you it's a little more urgent). It can safely be
done any time in the next 10-20kmi. The system is designed so that ONLY
the chain and tensioner (or at least it's spring) need to be changed if
it's done in a timely manner. No need to change the sprocket unless its
hooked or the guides unless they are DEEPLY grooved (they are expected
to be changed when the engine is rebuilt from the ground up - usually at
about 500kmi). Chains almost NEVER break until the stretch approaches
9-10 degrees.
After you change the chain, the car WILL run and usually start better!
Marshall
--
Marshall Booth (who doesn't respond to unsigned questions)
"der Dieseling Doktor" [EMAIL PROTECTED]
'87 300TD 182Kmi, '85 190D 2.0 161Kmi, '87 190D 2.5 turbo 237kmi, '84
190D 2.2 229Kmi (retired)
