Technical Flathead assembly what do you use for gasket sealer

Hey guys.. temp finally broke in New england and I'm finally back to work putting my flathead together. What do you guys use for sealant. Things like rear cam cover.. oil pan, timing cover and water pumps?

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You will probably get many opinions on this..My personal choice is to use exactly what old Henry used..stock gaskets...nothing more...

 

Agreed 100%.

 

On my flathead and other engines all I use is locktite 515. I used it to seal the threads on the head studs on the flathead

 

Just putting on oil pickup want to make sure it's going to be a good seal

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I've had good luck for years with COPPER COTE, either spray or dauber, de pending on the gasket.

 

I use a VERY small amount of Permatex #2 on oil pump and pickup gaskets. You don't want any air to enter past the mount surfaces.

 

Just a thin coating of grease to hold the gasket in place.

 

^^ I agree. Life got a LOT easier for me when I started using grease instead of some kind of "stickum" on my head gaskets.

 

I am re-installing my oil pan tomorrow on my 8BA, I will not be using gaskets on the side rails, just silicone there and the rope seals front and rear.

 

Discovered this stuff working with a Brit restoring a Chieftain tank 15+ years ago and used it in aviation work. does an amazing job and easy to take apart later. http://hylomar.com/hylomar-product-range/gasket-jointing-compounds/#aerogradepl32

 

Bandit Billy what silicone are you using on your pan rails? I have to reinstall my pan later this week and wondered which one to use?

 

Doing pan now.. my best gaskets fully overlap the front and real seals touching the crank. Should i leave them long? I have heard of guys having partial overlaps and dabbling some silicone at the joint but not all the way? Thinking I should trim it until it's halfway overlapping the seals?

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Another odd thing. Just spun the motor over after installing the timing cover and the Salinger that the seal rides against isn't moving... that supposed to 've a press fit on the crank snout?

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If you mean the sleeve with the spiral groove, yes it is a tight fit and should not turn.

 

Just black rtv

 

Rolls Royce uses Hylomar on their cars. I have used it with great success as well.

 

Thanks!

 

Yup.. called @Bored&Stroked up to pick his brain and he never had one do that! I pulled it back apart and the sleeve came off by hand Used a polish knurl on the id of the sleeve and some green locktite to keep it in place. Pan and timing cover buttoned up. Just have to clean up my water pumps and throw on the stock heads and intake so I can drop it off for paint!

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Funny you say that as hylomar makes that product under license of rolls royce... aerospace but still lol

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Hey, I quoted myself...cool.
My pan was installed by the machoine shop a few years back. It was only run for the burn in and dyno run. The pan leaked at the oil dipstick bracket (original gasket) prompting a pan removal and repair. I pulled the bolts and had to hammer a shorty screwdriver between the block and pan (several times) to separate the two. When I finally got it down I found no gasket, just silicone.

I called the shop and he said the thickness of the gasket would make the end seals susceptible to leaking, that and he didn't like the look of the cheap gasket that I had furnished him. I will silicone mine back on this week in the same fashion.

My flathead may leak, but it wont be from a lack of effort to prevent it.