Should I use sealant on top of gasket ?

[fire88]

I just bout the RyCO transmission filter plus gasket, I saw lot of videos that People add some sealant on top of gasket.

I asked RYCO, they answer:
We use nitrile / cork amalgam to give the compression of cork but the superior sealing and heat resistance of nitrile.

think in the old cork days sealant was commonly used.

Then I also asked if the RTV will damage the gasket:

The RTV is silicone. That shouldn't hurt the gasket at all.

Anyone used the sealant when changing the gasket of transmission? what kinda sealant?

[Dicko1]

Had mine done 6 months ago...only used the gasket. Sealant shouldn,t be required.

[fire88]

Thanks a lot

[Scooby]

If the surfaces are good no sealant is required on new gaskets.
That style of gasket shouldn’t require sealant.

[aussieintas]

As others have said and according to the online tech manual no sealant required just gasket.

[fire88]

Thank you so much!

Love this forum.

[Jasonmc73]

You'll be very thankful upon fitting the next gasket, a whole lot less work

[fire88]

You'll be very thankful upon fitting the next gasket, a whole lot less work

Interesting to find out if stock gasket used some sealant.

[Scooby]

What does it say in the workshop manual?
When I serviced the NW auto there was no sealant on the gasket.
The NM Auto was only sealed with silicone when I serviced it.

[aussieintas]

As I posted above workshop manual says no sealant just gasket for NT onwards. NS doesn't use a gasket just sealant.

[tomwithannl]

As stated there are very few cork only gaskets used any more, almost all are composite. The main thing is to make sure both surfaces as CLEAN & DRY. A trick I have used since I was an apprentice 50 years ago is to wipe the surfaces clean with a dry rag then use aerostart sprayed on a rag to do the final clean. It drys completely and leaves a perfect surface for the gasket. Lacquer thinners works nearly as well but I prefer the smell of ether you have to be happy while you work

Tom

[fire88]

Bought 20L penrite atf lv fluid for 189$, then did intermittent flush, drained from return hose about 3L which I have used milk bottles. Then add 3L new fluid into filler hole, used milk bottle with two holes, one attached to air compressor.

I have done 4 flushes until it becomes red fluid, then I drained from the pan and removed the pan.

Totally I used about 15L, the rest of fluid I used in my corolla.



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[crackles]

What type/size of washer is needed for the drain plug? About to do a full flush with new gasket and filter but need the washer ready to go when I do it (cant see what size until I remove it!)

[aussieintas]

From memory its 14mm and pretty sure they a crush type washer.