I have an 83 240d with no compression in the #3 cylinder. I pulled the motor/tranny because I going to just the body. Lot of rust.

I pulled the the valve cover before I pulled the engine to see if there was something visibly broken. I didn't see anything so I pulled the head. When I rotate the crank the pistons go up and down correctly. I thought there was a broken rod because of the loud clanking.

Now I think it could be something in the head. All of the spring and valves looked ok. Tomorrow I'm going to pull the upper pan and see if I can see any damage to the #3 rod/piston.

I'd like to the get the head to as close to spec as possible. I've found a few places that sell valve stems and seals. These parts don't look that expensive so I may replace them.

If I bring the head to a machine shop, what exactly will they do? Is it possible for me to rebuild the head or a machine shop a must?

Thx.

Pete

No compression in #3 & clank suggests that you have trouble with piston & rings. When you get sump off pull #3 & look for problems. How does the bore look?
Pics would help.

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1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
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