Couple MD Questions

JonnyT · Sep 8, 2012

Question 1 is we have a md and it starts and runs great but has a sucking sound from exhaust like a valve? any ideas on things to try before valve job?

Question 2 is in need of clutch replacement can I pull the disk and presssure plate out of bottom where belly pump is?

Janicholson · Sep 8, 2012

Disk and PP will come out. If it is missing on one cylinder, and white smoke is puffing in time with that miss, Your guess is probably good. If it is not missing, and you still want to check, do a compression check while switched to the gas start mode. Though the compression will likely be low, look for uniformity. 10% is max difference. Jim

JonnyT · Sep 8, 2012

no miss has the sucking noise both on gas and diesel what could it be can hear it and I did change mufflers and still there

Janicholson · Sep 8, 2012

There is a three bolt flange on the top of the manifold where the exhaust pipe comes out. That gasket could be blow. If it is, make sure the surfaces are flat before putting a new gasket on. They do have a unique sound, the muffler is at one end of the manifold, and it is different than a M or H gas. Jim

Couple MD Questions

JonnyT

New User

Janicholson

Well-known Member

JonnyT

New User

Janicholson

Well-known Member

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