Hi,
I've got a blown 93 GT that started leaking coolant (very slowly) a few years ago.
Strangest part is, it leaks most at cold startup, once the thermostat opens the coolant leak slows or stops completely.
Coolant pools on the timing cover, right above the passenger side coolant passage through it. Thought at first it was the thermostat housing, but after ruling that out, I pulled the alternator/smog pump away and could actually see it seeping from the joint between the timing cover and the block, right on top of the coolant passage through the timing cover......without the motor running.
So I pulled everything apart, cleaned it spotlessly, washed down with brake cleans repeatedly, used gasket sealant on the new Fel Pro gaskets, re-assembled everything to torque spec and filled the system. No leaks while not running, but on first start up.....the pool re-appeared! (I did check the timing cover out carefully and couldn't observe any issues with it....crack, pinholes, score marks, etc...)
I've been driving it for 1 week like this now and it's not losing a lot of coolant, but I can still see the pool after a short drive. I have tried torquing the two bolts surrounding this passage to 25 ft.lbs instead of the recommended 15 ft.lbs and that didn't seem to stop it. Only odd thing there, is that when re-torquing them this morning, they moved before tightening up again.....is that just gasket compression or is something else happening?
Suggestions and Ideas welcome, experience with the issue and resolution is the preference.
Pics attached for your review...
Thanks all,
Nick
I've got a blown 93 GT that started leaking coolant (very slowly) a few years ago.
Strangest part is, it leaks most at cold startup, once the thermostat opens the coolant leak slows or stops completely.
Coolant pools on the timing cover, right above the passenger side coolant passage through it. Thought at first it was the thermostat housing, but after ruling that out, I pulled the alternator/smog pump away and could actually see it seeping from the joint between the timing cover and the block, right on top of the coolant passage through the timing cover......without the motor running.
So I pulled everything apart, cleaned it spotlessly, washed down with brake cleans repeatedly, used gasket sealant on the new Fel Pro gaskets, re-assembled everything to torque spec and filled the system. No leaks while not running, but on first start up.....the pool re-appeared! (I did check the timing cover out carefully and couldn't observe any issues with it....crack, pinholes, score marks, etc...)
I've been driving it for 1 week like this now and it's not losing a lot of coolant, but I can still see the pool after a short drive. I have tried torquing the two bolts surrounding this passage to 25 ft.lbs instead of the recommended 15 ft.lbs and that didn't seem to stop it. Only odd thing there, is that when re-torquing them this morning, they moved before tightening up again.....is that just gasket compression or is something else happening?
Suggestions and Ideas welcome, experience with the issue and resolution is the preference.
Pics attached for your review...
Thanks all,
Nick
