Coolant leak 620

I have a JD 620 that has just a slight coolant leak. It leaks into the left cyl when it's not running. The longer it sits the more it gets in the cyl. It doesn't get in the oil and I'm not getting any bubbles in the radiator. It started this after I put a redone head. I'm thinking the head gasket but it only leaks into the cyl but not out?
 
For your sake I hope it"s head gasket related.
Did you the the surfice"s checked for flatness?

I have two ar5621 heads that are cracked, both
inside the exhaust valve port, both showed no
bubbles while running. Both didn"t give me a
problem until I retorqed the heads. What I
found out too late I had the carb set too
lean, exhaust port temps too high. & Both
started like yours & got worse, quickly.

RLA
 
If you have "Re-Torqued" the head, was it Totally Heat-Saturated, before you Re-Torqued the Head..???

NOT just "Warmed-Up"..HEAT-SATURATED.....

If so, there is still Sealers you can try...

Would be a good idea to get it out and put it to Work and see is it seals up..

They can seep sometimes for quite a while before they seal..

Ron.
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top