Cam seals - Sealant required?

[spetz]

Hi guys,

Do cam seals need any sealant upon installation?
And how about those plastic/rubber seals on the other end of the cam gears, would they require sealant?

Crank seal I assume does not?
But half moon seals should have sealant?

[silverGPX]

I sealed my cam seals just a light bead and they don't leak. However I did not put enough sealant on my half moon seals and they leak like a sieve - currently in the process of ripping the carriers out again to redo.


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[spetz]

I feel bad for you, that is a horrible job to do
If mine leak after I am done.... well I don't want to think about that.

[Bennoz]

I would use sealant. 3 bond grey or similar. Just make its the oil/petroleum grade one.

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[Daniel2019]

+1 for Threebond Grey. Use that on most of my gaskets.

[spetz]

This time I took the cams out so the cam caps are off and can be cleaned.
But if I put a sealant what will happen the next timing belt swap, would I need to remove the rocker covers and cam caps where the cam seals are?

I have permatex ultra black - This should also be fine I assume? It is specific to high oil and high temp conditions

[Daniel2019]

Errrr, caps can stay in for timing belt change. Also, timing belt only due every 100,000km so shouldn't be too much of a worry?

Yep if it can handle high temperatures and oil then it should be fine.

[spetz]

The caps are off as I took the cams out.
What I meant though was next time they need replacing it will be very difficult to clean out the old sealant when replacing the cam seals.

But I might use some anyway, would hate to have to remove the timing belt off again if they leak straight away

[Daniel2019]

Nah can be cleaned it isn't that difficult.

[Vectose]

Yeah can just rub it with a rag and peels off.

[spetz]

I'm currently cleaning the sealant the engine builder used when assembling the motor and it is a real PITA

Not sure what it is but it's light in colour, sort of like a cream colour. Seems very strong (stronger than it should be for the application).