V1 gasketless sealing

[Parson Green]

Am finding critical mating surfaces (e.g., supercharger-to-intercooler) where no gasket was used during original/factory assembly (of an LSJ engine). What, if any, kind of sealer should be used during reassembly?

(It's old-school but am tempted to use common wheel-bearing grease.)

 

[DCMoney]

Where exactly are you talking about? Haven't noticed a mating surface on the supercharger or intake plenum that hasn't had a gasket yet.

Never heard of of wheel bearing grease as a sealer, but i'm not old and gasket maker is pretty cheap and readily available.

 

[JeffsGoblin]

You should be using this gasket if we are thinking of the same mating surface:

 

[JSATX]

Engines are using fewer and fewer gaskets these days. I don’t know about the supercharger specifically but there’s no gasket on the oil pan etc. Normal RTV should work fine. If you want to go overboard this works best.

Amazon.com: Genuine GM Fluid 88864346 RTV Engine Sealant - 2.65 oz. Tube : Automotive

Buy Genuine GM Fluid 88864346 RTV Engine Sealant - 2.65 oz. Tube: Adhesives - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

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[DCMoney]

You should be using this gasket if we are thinking of the same mating surface:
View attachment 8969

This is what I was thinking of.

 

[Parson Green]

So, maybe I failed to notice that gasket? ****, senility is a terrible thing.

If/when I do encounter, during reassembly, some mating (& un-gasketed) surfaces, am now thinking of going with a very thin layer of this product.

https://www.permatex.com/products/gasketing/anaerobic-gasket-makers-flange-sealants/permatex-anaerobic-gasket-maker/