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1970 MG B Convertible Base

1970 MG B Convertible
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June 26, 2011, 4:17 am


Question: white residue on rear plugs

white residue on the both rear spark plugs. I have changed the wires ,plugs, distrubtor and cap. Electroic ingintion installed. I had the two SU carburators syned and they are fine. I am thinking that ethonal in the gas but I am not sure if that is the problem.

June 28, 2011, 9:18 pm

Richard W
Expert Mechanic

White most of the time is head gasket leaking. Make sure you are not loosing coolant.

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June 29, 2011, 3:54 am


I am not losing any coolant. I am leaning toward a valve lash. I have changed the wires,plugs and distrubutor. The idea of a leaking head casket was not something I had considered. I think I will run a compression check and see what comes up with that.
FJ Zarlenga

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