SasquatchSanta

This is a big of a long shot but does the engine have the original head on it?

The stock M37 head is flat across the front vertical plane (edge or end).

The heads on civilian engines have a bump of protrusion on the front of the head. This is to allow for an integral water pump bypass. The reason the M37 dossn't have this "bump" on the front of the head is because the M37 water pump has a bypass hose coming out the top of the pump.

"If" somewhere along the line, someone put a civilian head on your M37 engine it will leak unless a bypass hole in the civilian head was plugged.

I ran across this problem last fall with the Pumpkin Project when I installed a civilian head on an M37. We had to take it off and tap a plug into the bypass hole.

Like I said, this is a long sot but was old as these trucks are --- anything can happen.

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Ernie (Sasquatch Santa) Mitchell
www.M35MonsterTruck.com






It ain't what you pay for 'em it's what you end up spending on 'em.