D950 Head and pan gasket questions

[primerk5]

I bought a full engine gasket kit from Kumar bros. Been a lot of issues with this gasket kit, incorrect orings and seals, missing stuff....

It came with two head gaskets, one regular gasket, and a peice of flat steel in the shape of a head gasket. What is the flat steel gasket for? Do I need to use this, I didn't have one before.

It also came with two pan gaskets one is half as thick as the other, they are the same otherwise. which one should I use? I'm thinking the thicker one.

Also, Should i use silicone sealant on the pan gasket. I think I should but just wanted to know what every one else does. How about the gear case cover, I'm thinking not on this.

Thanks alot

 

[North Idaho Wolfman]

The metal head gasket if for when you've had to mill the head or install piston sleeves in the engine, so if you have done neither, discard.
Do you have an aluminum oil pan or stamped steel, aluminum takes the thin gasket and stamped steel the thicker, but double check the holes as there are variants.

I use ultra blue silicone on all my gaskets and never have a leak, just use a very thin amount and use gloves or you'll look like a Smurf when your done!

 

[primerk5]

I use ultra blue silicone on all my gaskets and never have a leak, just use a very thin amount and use gloves or you'll look like a Smurf when your done!

Ok, Thanks, Do you use it on the front gear case cover as well?

And i have the steel pan, thanks on that.

 

[lsmurphy]

I use Ultra Black anywhere except for where there is water/coolant, then I use #2.

Thin layer, both sides of gasket.

Clean Clean Clean........both mating surfaces. Wire wheel, used compressed air to blow out bolt holes, clean with acetone or denatured alcohol.


Set gasket with bolts just beyond finger tight, let set for one hour, snug all bolts, then torque.

For pan gaskets that are cork, snug only, do not over tighten and destroy gasket. Allow some Ultra or #2 to get on bolt threads, once set the bolts will not back out.

 

[North Idaho Wolfman]

Yea I use Ultra blue silicone on all the gaskets besides exhaust, on exhaust I use Ultra Copper.

The Ultra black is great too, I've just always used the blue???

Just don't use the standard clear silicone it will break down with oil and fuel.

 

[Kubota_Bob]

Just my 2 cents..........

Been building engines and transmissions for 50 years.......

Self employed and at dealerships..........

Gaskets and silicone are fine, just don't use them together.....

When silicone is applied to a gasket it acts as a lubricant and helps the gasket push out or split.......

Gaskets or silicone only should be applied to a CLEAN and DRY sealing surface......

Steel pans & valve covers should be inspected for dimpling around the bolt holes and if the item is dimpled it should be flipped over and the dimples hammered flat before installation.....

Many manufacturers have gone to silicone only for sealing, but again the surface must be clean, dry and with no oil residue...........

You can agree or disagree with the way I have done it...Your choice

Good luck on your reseal job,
Bob

 

[aquaforce]

Just my 2 cents..........

Been building engines and transmissions for 50 years.......

Self employed and at dealerships..........

Gaskets and silicone are fine, just don't use them together.....

When silicone is applied to a gasket it acts as a lubricant and helps the gasket push out or split.......

Gaskets or silicone only should be applied to a CLEAN and DRY sealing surface......

Steel pans & valve covers should be inspected for dimpling around the bolt holes and if the item is dimpled it should be flipped over and the dimples hammered flat before installation.....

Many manufacturers have gone to silicone only for sealing, but again the surface must be clean, dry and with no oil residue...........

You can agree or disagree with the way I have done it...Your choice

Good luck on your reseal job,
Bob

I am pretty much in full agreement here too.

 

[Tooljunkie]

I use contact adhesive-3M trim and detail adhesive. Like contact cement, glue gasket to removeable part only. No sealant on other side. Adgesive gasket sealant. Copperkote is awesome too