Jim Cathey wrote:
Pump timing, restriction in the exhaust, EGR stuck the wrong way... few
possibilities. How about a hand pump sucking a LOT of air?
I neglected to mention that I tried to check chain stretch, but I'm
not sure I did it right. I got a figure greater than 20 degrees.
The hand pump, when unscrewed, leaks a lot.
-- Jim
Stretch exceeding about 18 degrees ALMOST always results from from the
chain being off by one link (1 link = 18 degrees). A chain that exceeds
about 10 degrees of stretch is right on the verge of snapping. An error
of between 10-12 degrees CAN result in the pistons and valves starting
to hit each other (I don't recall in which direction but I believe >10
degrees of stretch). Mercedes cautions that if stretch reaches 10
degrees, the interior of the combustion chamber, pistons, valves be
inspected for signs of collision.
Marshall
--
Marshall Booth (who doesn't respond to unsigned questions)
"der Dieseling Doktor" [EMAIL PROTECTED]
'87 300TD 182Kmi, '84 190D 2.2 229Kmi, '85 190D 2.0 161Kmi, '87 190D 2.5
turbo 237kmi
