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waddy1200

Active Member

• May 29, 2014

• #1

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

Well-Known Member

Events Planner

• May 30, 2014

• #2

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

Especially with the oil pump in the timing case.

Peter

 

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waddy1200

Active Member

• May 30, 2014

• #3

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

Well-Known Member

Events Planner

• May 30, 2014

• #4

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

 

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waddy1200

Active Member

• May 31, 2014

• #5

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