intake gasket

Pico79 · Oct 11, 2013

I am going to attempt to replace the valley pan gasket on my 260 this weekend, I am mechanically inclined to a certain point.. just have never done on one my own (always had a friend too help me out)
any tips or pointers that you all can give me, so that i can get done right the first time.
Thanks In Advance
Roger

DoubleV · Oct 11, 2013

My tips; use a little RTV around the water ports and use RTV on the end rails instead of the rubber gaskets.

Pico79 · Oct 11, 2013

DoubleV said:
My tips; use a little RTV around the water ports and use RTV on the end rails instead of the rubber gaskets.

got it, Thanks

tc1959 · Oct 11, 2013

Pico79 said:
DoubleV said:

My tips; use a little RTV around the water ports and use RTV on the end rails instead of the rubber gaskets.

Click to expand...

got it, Thanks

If your going to use RTV let it sit over night and cure before you start it. also make sure any surface you apply RTV to is super clean, Use some Brake clean to remove any oil.
Also clean the intake bolts and apply some thread sealant to the threads and don't mix them up, keep them in order. Take your time and you should be fine.
( it might be a help if you can borrow or buy a Service manual for the 260.)

Pico79 · Oct 12, 2013

tc1959 said:
Pico79 said:

DoubleV said:

My tips; use a little RTV around the water ports and use RTV on the end rails instead of the rubber gaskets.

Click to expand...

got it, Thanks

Click to expand...

If your going to use RTV let it sit over night and cure before you start it. also make sure any surface you apply RTV to is super clean, Use some Brake clean to remove any oil.
Also clean the intake bolts and apply some thread sealant to the threads and don't mix them up, keep them in order. Take your time and you should be fine.
( it might be a help if you can borrow or buy a Service manual for the 260.)

Thanks,,should I apply any spray copper coat to the surface of the pan?

78 salon · Oct 12, 2013

I agree with double v. No copper coat needed. No thread sealant needed on bolts, maybe some oil on threads, and follow torque pattern. Good luck.

Pico79 · Oct 12, 2013

Got it done a few hours ago, Thanks to Everyone for the tips on doing it.

project_862 · Nov 4, 2013

Rtv is fine, but "the right stuff" is better, use the valley pan, ditch the front and rear seals and just use the right stuff, its made by permatex, and can be found at autozone, the right stuff is also a lot more oil resistant, you almost don't need to clean off oily surfaces, although it is good measure. And you don't need to let it sit over night, only about an hour for maximum strength

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intake gasket

Pico79

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