Re: Intake Manifold Torque Setting?

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Posted by Guy ( on 22:39:43 12/13/07

In Reply to: Intake Manifold Torque Setting? posted by Terry

Hey Terry,
I'm sure more qualified folks will respond, but here is an excerpt from the #1 Son's Topic Page.
You may want to take a minute or two and read through all intake manifold information there. Most of it is in the cooling section.
Good Luck and keep us posted on your finds and results.

Re: Intake Manifold Leak?

Posted by Lee in MO on December 08, 01 at 09:13:44:

In Reply to: Intake Manifold Leak? posted by Herman on December 08, 01 at 06:38:27:

My 97 454 4X4 developed an intake manifold coolant leak at about 80,000 miles. Pressure check of the system while cold showed no leaks. Pressure check of the system with engine hot produced coolant leakage.

While replacing the gaskets I found 4 of the front lower intake manifold bolts to be loose. These bolts had a good coating of Loctite on the threads, but were probably never torqued to the 30 lb ft specification at the factory.

If you need to drive your burbon, I'd suggest you loosen the radiator cap. Cooling system will not develop pressure and you will be less likely to leak coolant into the internal of the engine. But get it fixed soon.

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