F134 Engine Head / Gasket Issue

Continue to underestimate the Gremlins on my first ever restoration.

bought a used F134 engine last year. Was told it was running fine but taken out of an MB because he wanted all original/vintage parts. Replaced with a go devil engine.

anyway, got the engine running and it sounded great…. Until coolant fluid began pouring out from the head/above the gasket in the rear of the engine on the passenger side.

I am pulling the head now and have a couple options that I’d like you experts to help me with — take that head to a machine shop to repair, pull the head off the seized up engine sitting in the corner of my garage and install it, or something else?

I’m at a loss on the best path forward and could use your advice.

 

That chip can likely be filled with weld and the head resurfaced. Whether to use the head from the seized engine or this one would depend on the condition of the rest of both.

 

I agree with Duffer that the chip could likely be repaired, and also agree the decision on which to use would be the best of the two heads you have. I would pull the head off the seized engine, clean it, examine the surface, and check it against a known true straight edge to see if it needs milled. If it has no cracks or chips I would use it instead of the one with the obvious damage.

 

Thank you both for your input. I’ll pull both this weekend and see which is best.

 

Stopleak...

 

PeteL's suggestion is worth considering. I had a pretty bad leak in an old Ford 8N tractor I used to have. The machine shop I use sold me a product they called "Cold Weld". It was a green colored tablet they told me to put into the water jacket and run the engine to get it hot. I pulled the thermostat housing and dropped the tablet in, and then bush hogged the back field which is about 5 acres. The leak was sealed, and I used that tractor another decade without it ever leaking again, nor running hot.

 

I would pull the head from the seized motor and have it re-built, it is only four valves to replace and then you have a "New" head to work with. I bought a NOS F Head, Military Surplus motor from a friend, it was a short block, took my used head to Greg's Heads and he put all new guides, valves and springs in it and it was "New " again. Now I had a new motor to start with. Good Luck. Nice Jeep you have there, Thanks for Sharing.

 

Think I’ll rule out the head off the old engine. Circled where my leak is and apparently that recession is part of the head (although not sure why). Will take the head off the installed engine and see if I can clean it up and reinstall with a new gasket or if I need to take to the machine shop.

 

#1 looks like it got a bit of water in it. At a minimum, I would pull that exhaust valve and see if the seat is still good.