Hoo boy ... right up there with 'which tires' and 'which oil.'
For me; depends on the application. On paper gaskets, I like Permatex
'Aviation Form-A-Gasket #3,' as it cures to a glaze, which is easy to
remove, and it's less likely to drop a glob in your oil passageways. I
use blue RTV on valve cover gaskets, though, but I'm careful to use a
thin bead which shouldn't spread wider than the gasket (I glue the
gasket to the cover with 3M Upholstery Adhesive--aka 'yellow snot'). For
metal-to-metal applications, I like Permatex Black Silicone
Sealant/Adhesive (note if it says 'adhesive' it may be harder to
separate parts in the future). I used this to seal the brake ring to
output housing--no gasket required/shouldn't be used--on an overdrive
and no leaks yet. Permatex 'Right Stuff' is a great sealant and a strong
adhesive; it or something similar is used in place of gaskets in modern
cars. It's not meant for easy removal (in fact, it's a bitch).
Timely comment; I just pulled the rear hubs on my BN2 because of leaky
seals, and found some grit on the backside of the seals (no idea how it
got there). I think I'll use the black stuff between the brake backing
plate and the axle bracket--metal-to-metal--to try to prevent that in
the future.
Bob
On 12/20/2020 8:05 PM, Robert Nogueirao wrote:
> Seems like every video of someone working on an engine has them using RTV
> gasket maker with a paper gasket, yet buried in the manufactures literature
> it specifically says not to use it to hold a paper gasket in place.
> Iâ??ll admit Iâ??ve done it and havenâ??t had any problems.
> What says the group, what do you use on gaskets?
> Bob Nogueira
>
> PS: and yes Iâ??m aware of the â?? globsâ?? problem of fouling the oil pump
> screen. I use a thin coat placed closer to the outside edge.
>
>
>
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