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MD11C - Fails to start

Discussion Forum at MarineEngine.com » Volvo Penta Diesel » Archive through October 03, 2007 » MD11C - Fails to start « Previous Next »

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John Viera
Member
Username: javsail

Post Number: 4
Registered: 07-2006
Posted on Monday, September 03, 2007 - 05:37 pm:   Edit Post Delete Post View Post/Check IP

Engine cranks OK, but loud popping sound coming from engine as it cranks and black soot coming out of exhaust.

Bled fuel system but it didn't help.
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John Viera
Member
Username: javsail

Post Number: 5
Registered: 07-2006
Posted on Tuesday, September 04, 2007 - 05:53 pm:   Edit Post Delete Post View Post/Check IP

Removed valve covers and rocker arm assembly this morning and discovered bent push rods on both the intake and exhaust valves of the rear cylinder. Now what caused that?
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JUST-IN-TIME
Senior Member
Username: justintime

Post Number: 2307
Registered: 09-2006


Posted on Monday, September 10, 2007 - 04:35 pm:   Edit Post Delete Post View Post/Check IP

water intrusion maybe
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John Viera
Member
Username: javsail

Post Number: 6
Registered: 07-2006
Posted on Tuesday, September 11, 2007 - 04:21 pm:   Edit Post Delete Post View Post/Check IP

It turned out to be a stuck intake valve. I freed the valve by tapping cautiously with a hard-plastic mallet and spraying brake cleaner onto the valve stem.

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