Where are the ball bearings?

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82 300D....went to MB heaven
90 350 SDL....excercising con rods

well, all that about castings is no doubt true, but they do fail first at least some times. back in the seventies i had a 37 chebby. when i got it it had a freeze plug out in behind the water pump. it was in a difficult to reach place but i was able to put in a rubber freeze plug. these consist of a rubber donut with a bolt thru the center and a large washer on each side. buy one that will fit your hole insert it and turn the nut. it fixed my chebby. i dont see why it wouldnt work on a benz.

as a matter of fact we solved a plumbing problem in my 1913 office building a few days ago using a similar device to plug a 6" d pipe that had been apparently struck by lightning at some point blowing out the back side of it where it was inaccessible and invisible, but allowed noxious sewer gas out.

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

the ball bearings are supposedly used to block holes that are used for assembly and there are six sets of them on the exhaust bank slightly above and to the right of the ports.
Matt

I just heard back from the machine shop, and the pressure test was negative, a very good thing. So the ball bearing were not part of the leaking, and everyone I've talked to said they had never heard of them leaking. Bad news is that in the middle of doing the valve seating, he found that the #6 cyl. intake valve was hitting the valve seat ring. Ring up another $48 bucks.
Matt

What does that mean?

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95 E320 Cabriolet, 169K

I may not be using the right nomenclature, but apparently this is something that does not happen very often. The valve was going past the 45* seat angle which ended up causing the problem.

Doesn't make sense-

Possibly the valve seat is loose.


Michael

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Michael McGuire
83 300d
01 vw A4 TDI
66 Chevy Corsa
68 GMC V6 w/oD
86 300E

.... or valve seat recession.

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95 E320 Cabriolet, 169K