To Lipstick And Beyond (1 Viewer)

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FJBen said:
@GJCruiser
There should be some freeze plugs behind the side cover. It’s possible one failed or is completely out.

It would have to be a rather good sized hole or missing freeze plug to fill up while pouring in.
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Help me understand that. Freeze plugs are visible behind side cover or hidden and exposed by removing side cover? I'm looking for an internal leak between oil and water.
 
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Drained dirty water, then thin oil from crankcase. Removed all plugs, ran compression test with all plugs out, on battery charger, crank five rotations, and read. Altitude 6200 feet.

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FJBen, I think you mean a freeze plug in rear of the head.? I'll go look again but I have NO external leaks.
 
Freeze plugs in rear of head and block are intact.
 
I'm with @scrapdaddy could be as simple as a head gasket, the only part that I pondered was how fas you were filling and loosing liquid - a bit of pressurized seepage is a normal HG symptom, free flowing I'd think less so.

If it's the HG, it would explain your compression numbers, don't love #2 for the fact that its low and not the same as the rest. If you have done a visual around the block and head though and the freeze plugs are intact, I'd think that the HG is your most likely culprit.
 
I agree #2 is low. From memory from about two years ago, that was not the case. Plugs 2,3, and 5 are sooty, but not wet. I can confirm I cannot fill rad, water goes straight to pan. Someone over on 40/55 tech mentioned oil cooler, which I have. I don't understand how a head gasket leak could cause my symtoms without pressure. The oil cooler is an exchanger and I could see a failure mixing there w/o pressure. Any experience on cooler failures here?
 
That's a good theory - the cooler would be on the outside, weaker metal and have been filled with water during the -15 days, that makes more sense. I agree too, the flow rate was puzzling to me.

Can you bypass the the cooler with a short hose and see if the cooling system holds fluid?
 
GJCruiser said:
I agree #2 is low. From memory from about two years ago, that was not the case. Plugs 2,3, and 5 are sooty, but not wet. I can confirm I cannot fill rad, water goes straight to pan. Someone over on 40/55 tech mentioned oil cooler, which I have. I don't understand how a head gasket leak could cause my symtoms without pressure. The oil cooler is an exchanger and I could see a failure mixing there w/o pressure. Any experience on cooler failures here?
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I’d pull that side cover. If a freeze plug is bad in there, Coolant would go straight down into rocker arm crank case.
 
If it was cooler I think it would've split and spill on floor but might be wrong. By pass cooler is good idea. Is the cool going into pan real fast??? If it was I would say 1 or more of the freeze plugs behind pushrod inspection plate. There are 4 freeze plugs on each side of block and 2 in rear of block and 2 in front of carb on D/S where stovebolts are. I'm betting behind pushrood inspection plate 🤔🧐😉
 
So I'm still ignorant--there are freeze plugs behind the side cover in the lifter inspection area? I'll go look for photos.
 
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