jerod187

K i got everything on my engine together and anyways started putting coolant in the rad and it started leaking like crazy, well thought it was the water pump took it apart re sealed it and still leaking , so i figured id take the timing cover off and reseal it well did that, and still leaking, ok so i thought for sure it was the lower intake so i took it out and looked and i think it was leaking a bit inside so i put a bit of sealant around the water jacket holes and along the front and back and retorqued it in 3 stages to 26 foot pounds, BUT STILL IT LEAKS any one ahve any ideas........ its pouring out the bottom but there is a little puttle on top of the timing cover??? PLZ HELP im so choked

89blackonblack

thermostat housing gasket?

Mustangkiler

Did you put thread sealer or teflon tape on the heater pipe connection into the front of the manifold?

CantStopTheFox...

My buddy just changed his thermo housing...sealed it, started it.....LEAKED!

I told him to let the sealer sit over night to set......he did, no leaks.....

USMC1775

Mine has the same leak, but only if I run it really hard and get it hot, Ill notice a drop or two under the front of the oil pan. Thermo gasket. Im waiting until I get my heads from the machine shop to tear into it.

jerod187

whats a thermo gasket lol
?

MustangMan628

http://www.daymotorsports.com/images...Water-Neck.jpg

look for something like that under your hood. It has a hose attached to it, and 2 bolts that hold it in. The thermostat is under there, and the gasket sets on the water neck to seal the thermostat. Make sure you use RTV and DO NOT OVER TORQUE the water neck. If it is really badly warped, you may have to flatten it out. I usually put mine on a nice level surface and check for defects.

dillon1340

the thing with the thermostat housing is that when you put it together the thermostat has a habit of falling down and getting between the two sealing surfaces. i had this same problem over and over until i bought a ford thermostat. it has a tab, you put it in the neck and twist it till it locks in place then put it together and it is fine.

jerod187

ok thanks ill check and see if thats leaking

MustangMan628

Ah, I have had Fords all my life as well. Thermostats suck! Now, I put my water neck in a vice, set the htermostat in place, and set RTV or gasket shellac around the water neck. then I set the gasket overnight. It leaves no place for the thermostat to move. At least it's worked on my last 2 I did. Do Fords really have a special tab, I don't think I've ever bought a thermostat that wasn't a performance one with lower than stock temp, or cheap autozone one for a daily driver.