If I get it running it will be for the wife, and I will take back over
the SD until the motor finally blows up in that. Then I will either
drop that 603 engine (if its a good one) in, or search for a 606 turbo
engine to drop in it.
Hendrik & Fay wrote:
Pull off the rocker cover and you should see the broken guide to confirm
the cause, then see if all the valves are valving. I doubt that there is
a piston meets valve event, far as I know a motor with a bent valve will
not turn over, unless it has done big damage, like a hole in the piston
but that is unlikely unless the motor was doing high revs. Further if
the chain jumped enough to bent a valve/put a hole in a piston then the
other valves will be making contact as the motor turns. Of course you
won't be telling the seller that.
Then the next course of action I would pursue would be to pull the front
cover off and check that everything is still intact (or at the very
least make sure the chain tensioner is not damaged), then do a
compression check to determine if the head has to come off. If
compression is good, fix the front end and replace/repair the rocker
cover and then flog it off to one of the natives for a profit, or drive
it around feeling superior to the peasants in their E classes, perhaps
buy the missus a chauffeurs hat.
Hendrik
Kaleb C. Striplin wrote:
disassembly of what, the front cover or the heads?
Hendrik & Fay wrote:
How loose is loose, there may well be a little slack sometimes, that
makes a chain feel loose. I think it is caused by the motor slightly
turning backwards after it is shut off. Sort of like a bit of back
pressure form a compression stroke. I guess even a back turn of half
a degree would make a timing chain appear loose.
If the chain is loose whilst a bit of pressure is put on the engine
(like putting a socket on the front of the engine and turning it
slightly), then I would say the tensioner is shot or other evil is
happening.
Not sure exactly how it works but the tensioner can move back a bit
to allow the chain to drag that piece of guide rail over the cam
sprocket, anyway disassembly and inspection is required, or Kaleb can
just patch it up and sell it to some sucker.
Hendrik
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Kaleb C. Striplin/Claremore, OK
92 300SD, 92 300E 4Matic, 91 300D, 91 300E, 89 560SEL,
89 300E, 87 300SDL x2, 85 380SE 5.0 Euro, 85 190D, 84 190D x2,
84 300D euro manny, 81 240D, 80 240D, 76 240D, 76 300D,
http://www.okiebenz.com
_______________________________________
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/
To Unsubscribe or change delivery options go to:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
