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Volvo MD17C bent pushrods HELP!
thanks for reading. I am seeking some feedback on a problem I have had twice
this year on my Volvo Penta MD17C diesel. the engine is in good shape with under 1500 total hours. it has been overhauled and serviced etc. well this year In early june I had a pushrod (on the intake valve) fail on cylinder #2 and the exhaust valve pushrod was bent. New pushrods were installed and valve clearance and timing checked etc. Well, today I started the engine and it was sounding like backfiring and I checked and exhaust was belching out the intake of cylinder #2. turns out the pushrods are bent again!?!?! my mechanics are stratching their heads. I am puzzled as to why this is happening ( timing?, fuel?, ). BTW, it seems to happen after the engine has sat for awhile (months) and during cold weather starts.... please post reply here, this is a no email address.....thanks... |
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