1967 - 1972 F-100 & Larger F-Series Trucks
Discuss the Bumpsides Ford Truck
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Alright so I just put new intake manifold gaskets on and GUESSWHAT! Iím leaking radiator fluid. Itís on the front of the manifold where the corkgasket is. Now should I take it all off and use something different or can I torchit down more to cause it to stop? Also my freeze plug is leaking. Can I add a newone with out taking the manifold out?
Do you have the original cast iron boat anchor manifold? Those things are HEAVY!! You will need to remove it, clean the gasket surfaces, and reinstall the gaskets. When you go to reinstall the manifold, get someone to help you gently set it into place. Even better if you can use an engine hoist to position it. The major cause of leaks is that the manifold shifted during installation. You want to set it into place on the first shot. Use an engine hoist and lower the manifold almost all the way down, then start a couple of bolts to guide it down
I used the right torque sequence...and i had 2 other people to help me put it in place. so it wouldn't move. thing is where the manifold sits (where the valv cover gasket sits) it has a lip like its not going down all the way.
He is onto a common problem, how to drop those cast iron manifolds in place. I have found that it is a three-man job. Tie the manifold onto a 2x4 spanning the fenders. Have two mooses lower it and and have the third guy guide everything into place.
Also, don't try to connect the bypass hose as you install the intake. Cut a little off the pipe out the back of the water pump so you can install the hose later.
It's not too unusual to see a little lip at the mating surface of the head and intake.
I'm try'un ta cover all the bases here so, .... are you sure it's the manifold that leak'un the fluid?
Could it be the PITA water pump hose? Or the large radiator hose that needs to be alittle tighter? Reson I ask is cause there's not a water jacket port on the front of the block. Maybe one of the Head ports is leaking but, .... do you have fluid in yer oil?
1970 F-250 Hi-boy 4x4, 3-inch body lift, 390FE bored .060 over, Edel RPM intake, GT profile cam, Holley 670CFM Street Avenger Carb, NP-435 four speed, Ranger Torque Splitter, NP-205 Transfer case, Heddman Hedders, Unilite dizzy mod, Headlight relay Mod., Wiper Delay Mod., 36" A/T's, 19 gal Aux fuel tank added.
Might want to opt out of the corks in front and aft, just use a good bead of the right stuff sealant. Blue sealant around the water jackets on heads/intake. Nothing on the intake ports. Be sure the head gasket, intake gaskets locks align. Place intake on check metal pin in front and install the distributor. Then drop the bolts in and go/ following the sequence, torque steps from Ford. Trim away the intake gasket tabs at front /rear of heads with a utility knife. Install the VCs and you should be ok.
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