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Diesel Engine Problem 700 1990

posted by  volvomanvolvos on  Thu Oct 31 05:15 CST 2002
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last visit: Fri Feb 18 11:02 CST 2011
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My 740 is fitted with the VW 2.4 diesel engine. Recently at 142,000 miles I found oil in the cooling system.
Suspecting a head gasket failure the head was removed and found to be cracked across all six points
A complete NEW head was fitted but after only 180 miles the same problem has arisen.
does this mean the block has failed?
has anyone else had this fault?








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    Diesel Engine Problem 700 1990

    posted by  gholmer on  Thu Oct 31 11:40 CST 2002
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    Probably they did not tighten it properly. I would go back and complain, who did it? A Volvo dealer or a VW dealer or an indy? The headgasket was gone on mine when I bought it, and the head cracked. This is very common.

    George
    --
    1987 745 GLE Turbodiesel Intercooler (D24TIC)/1988 745 Turbo Intercooler (B230FT/M46)








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    Diesel Engine Problem 700 1990

    posted by  B.C. on  Thu Oct 31 09:44 CST 2002
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    last visit: Wed Mar 28 22:28 CST 2012
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    My Diesel experience is with generators, not autos, but a Diesel is a Diesel. The compression ratio in a Diesel can be 18:1 and up, so the block, bottom end and head are really strong. With a turbo, the effective compression can be even higher.

    Based on that, I would guess that the block is still OK. Whatever caused the head problem may or may not have been repaired, and/or the new head and it's installation may have been faulty. Also, can you get the coolant tested for combustion products as well as oil?

    Since it is a VW truck engine, did you use a VW shop? Can you check around for a Diesel expert? (Diesel is captialized as it is Rudolph Diesel's last name).

    The Volvo Diesel-powered cars are sufficiently rare that a Volvo shop may not have the xpertise you need.

    Good Luck,

    Bob

    :>)






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