weeping antifreeze from back of head

[rikiwho123]

Hi all i just rebuilt my 1300 spit motor last fall had the head all rebuilt (all new valves 'guides' harden seats etc.)also had it shaved and maged ; at the same time had the block all redone ; bored 30 over crank polished etc. the problem is at the back of the head when the motor is running it's weeping anti-freeze from a spot you can't get your head down to see ; i tried re-tourqueing the head but still leaks; so do i take off the head and try copper spray on the gasket or a new head gasket ; i used a payen gasket since i heard they were the best for my motor any advise is welcome.

 

[Deleted member 8987]

1300....1300.....don't those have a core plug on the end face of the head?
You REALLY need to invest in a good inspection mirror.
If it's leaking, and the shop put it in, have a discussion with the shop that did the work about gaskets, and fixing the core plug properly.
Never hurts to negotiate up-front.
Doesn't mean it isn't the head gasket, but if you can feel a big, round core plug back there, see if it is damp at the bottom, THEN discuss options with the shop.

 

[TomMull]

For what it's worth, I have found that head gaskets tend to weep most after the engine cools down while core plugs and such leak most when hot. Tom

 

[70herald]

1300....1300.....don't those have a core plug on the end face of the head?

Should be two of them actually. I had a leak there and just sealed it with a bit of epoxy.

 

[rikiwho123]

thanks guys but the core plugs aren't the problem so going to get some morso engine sealer or just take off the head and change the gasket ;but not today i need warm weather to work outside