Multiple Questions ?
 

1: Opinions on which pan gaskets to use - cork or paper ?

2: One piece or two piece crank pulley ?

Appreciate the input !

Re: Multiple Questions ?
 

My vote:
1. Cork
2. One piece pully

Re: Multiple Questions ?
 

1) My engine builder used no gasket, just the black Permatex.
2) Definitely one piece pulley.

Re: Multiple Questions ?
 

Ultra Black Silicon & one piece pully.

Re: Multiple Questions ?
 

Much appreciate the input fellas !

Re: Multiple Questions ?
 

The advantage with the two piece pulley is that it is easier to change just the pulley. But if you need to pull the second part it gets complicated. Most people weld something to the inner piece to pull it out.

Most cork gaskets are cork pieces in a plastic binder. The cork compresses more than the paper so it is better for surfaces that do not match properly, but you have to be careful not to over torque the fasteners or you will split the cork. The paper gaskets are better for parts that mate properly. You should make sure the surface of the pan is flat and fix it with a body hammer and anvil if not.

Smear a very thing layer of a silicone gasket sealer on both sides of the gasket. No silicone should squeeze out of the joint when the fasteners are tightened. If you use just the silicone gasket maker, then just tighten the fasteners until the surfaces are joined and the silicone is in full contact. Then let the silicone cure before fully tightening the fasteners and do not over tighten the fasteners.

Excess silicone gasket cement has been known to clog oil lines and cause damage.

Re: Multiple Questions ?
 

I agree,

Cork is more forgiving than paper if the mating surfaces are not exactly flat. It is very hard to get the pain rails flat enough to easily seal well with paper.

I use Gask-a-Cinch sealer. It is a product that has been around a long time, seals very well and is easy to take apart when necessary.

Chris W.

Re: Multiple Questions ?
 

Ditto.

Re: Multiple Questions ?
 

There are several types of paper but I wouldn't use it on a press formed sheet metal cover like the oil pan. The cork gasket form fits the pan better. A person has to evaluate the thickness of the gasket since it can make a difference on how much is trimmed from the rope seal. The thicker the gasket the less is trimmed from the rope seal. The rear main also needs a good cork gasket to seal properly but most pan sets have them even if the rail gaskets are paper. Most come with two widths for best fit in the main cap gasket channel.

Cork gaskets are a composite gasket. As was mentioned previously, cork particles are mixed with oil resistant elastomers (synthetic rubber). Some of the modern gaskets are pretty good. The last set I used was from Snyder's and they worked well. These are a bit different from the average cork types.

Paper gaskets work best on cast iron or steel covers. I use Three Bond 1211 on most gasket sealer situations. Copper sandwitch gaskets are a whole different animal.

The latest steel two piece lower pulley works well. The old die cast pulleys were crap.

Re: Multiple Questions ?
 

It’s “Gasgacinch,” and I also use it almost everywhere a cork or paper gasket is used.

Re: Multiple Questions ?
 

Again, I thank you all ! Been 50 years since I had an A in the shop !