4.0 thor engine

waddy1200 · May 29, 2014

Hi guys right need a few opinions off you lot. Mate of mine has just bought a p38 with a thor engine only problem is the bottom end is knocking so I reckon crank and big ends need replacing. I say fix it he wants to buy a different engine for it. any opinions on the best idea. cheers in advance guys

listerdiesel · May 30, 2014

I'd strip it and check what has gone wrong first.

Especially with the oil pump in the timing case.

Peter

waddy1200 · May 30, 2014

yeah ive been thinking about it all morning peter as to my knowledge big ends only go when its due to lack of oil. was going to whip the sump off have a look in there and also check the wiring for the oil pressure sensor to see if it has been played with.

listerdiesel · May 30, 2014

If it is the oil pump rotor broken, then that's a load of debris through the oilways and a full stripdown to clean it all out.

If a failed relief valve then not so bad, big end shells go bad long before the crank journals.

Peter

waddy1200 · May 31, 2014

well ive heard it and its rather metallic in sound was plenty of oil in it. no oil pressure was only running on 4 cylinders and all the water has gone into the oil. mmmm ne thinks its done for

4.0 thor engine

waddy1200

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listerdiesel

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waddy1200

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listerdiesel

Well-Known Member

waddy1200

Active Member

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