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Posted: Fri Jan 03, 2014 6:56 pm
by Richard P6
Mine are the rubber gaskets with the metal spacer tubes. I have found them to be slightly too small and very difficult to get them to fit at all four corners at the same time.
To stop this I bonded them to the cover with a low mod silicone and let it fully cure. The advantage of the low mod (Oxime) silicone is that it doesn't attack aluminium like the acetoxy ones can. Then a smear of anaerobic sealant (instant gasket, pipe sealant or whatever) to the underside and bolt them down. Not had a leak since.
Richard
Posted: Sat Jan 04, 2014 6:31 pm
by JP.
I use no rocker gaskets at all. The Merlins didn't need them
Posted: Sun Jan 05, 2014 9:35 am
by DaveEFI
Richard P6 wrote:Mine are the rubber gaskets with the metal spacer tubes. I have found them to be slightly too small and very difficult to get them to fit at all four corners at the same time.
To stop this I bonded them to the cover with a low mod silicone and let it fully cure. The advantage of the low mod (Oxime) silicone is that it doesn't attack aluminium like the acetoxy ones can. Then a smear of anaerobic sealant (instant gasket, pipe sealant or whatever) to the underside and bolt them down. Not had a leak since.
Richard
Where did you buy them from? I've fitted a few, and they've always been ok.
I've had inlet manifold gaskets which didn't fit - so I'd guess there are some rubbish makers out there.
Posted: Mon Jan 06, 2014 9:20 am
by Richard P6
DaveEFI wrote:Richard P6 wrote:Mine are the rubber gaskets with the metal spacer tubes. I have found them to be slightly too small and very difficult to get them to fit at all four corners at the same time.
To stop this I bonded them to the cover with a low mod silicone and let it fully cure. The advantage of the low mod (Oxime) silicone is that it doesn't attack aluminium like the acetoxy ones can. Then a smear of anaerobic sealant (instant gasket, pipe sealant or whatever) to the underside and bolt them down. Not had a leak since.
Richard
Where did you buy them from? I've fitted a few, and they've always been ok.
I've had inlet manifold gaskets which didn't fit - so I'd guess there are some rubbish makers out there.
They came with the car, so don't know where they came from. To fit them, you had to put them roughly in position, put the cover onto the engine, then hold it down firmly when gently easing the gaskets over each corner.
After spending over an hour trying to line one up once, I decided to glue them on. I didn't occur to me that they were badly made, I thought all rubber gaskets were like it.
Richard