Getting the rocker covers oil tight - Engine & Transmission

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Barthol
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Joined:	10-31-2013
Location:	Denmark
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Hi,

I have just checked my valve clearances , it was all good :-)
However putting the rocker covers back on the engine and getting the gaskets tight have proven very difficult.

I´ve got 3 mm thick orange rubber gaskets, and I have appiled some silicon based gasket.
The problem is that the gasket seems to slide out as soon as I apply pressure ( tourqu down the 6 bolts.
Do any one have an idea on how to solve this issue??

br kim

MikeIsotech
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Joined:	04-22-2010
Location:	Winchester, United Kingdom
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I followed some advice from the guy who built my engine. Clean the cover gasket edges really well to get rid of any oil or sealant. Then use spots of super glue to tack the gasket to the cover. Once it's dried, you can refit the cover and the gasket shouldn't slide out. It worked for me.

subwoofer
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Joined:	04-01-2008
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The rubber gaskets are supposed to be installed dry AFAIK. I have had no leaks and no extrusion when (re)fitting mine.

--
Joachim

Barthol
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Joined:	10-31-2013
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hi guys,

Thanks a lot, I have cleaned it up and degreased gaskets and sealing surfaces.
I will try to spot glue them to the cover and then install them dry.

Kim

Jensen Healey
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Joined:	03-11-2005
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I install mine completely dry. All surfaces must be cleaned with acetone. Use blue tape on the outer 1/8" in a few spots to position the gasket. It should stick out evenly all around.

It works best with a brand new gasket.

Good luck, Kurt

Brett Gibson JH5 20497
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Plus it only needs to be snug not tight.....

Jensen Healey
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I believe that most cam covers have been over-tightened in the past, warping them. I don't worry too much about the 4 ft/lbs factory setting and just snug them up gently by feel.

Tom Bradley
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If the gasket is sliding out at the back of the lower (exhaust) cover, it may be that you did not get rid off all the oil. What happens in mine is that, when the old cover is removed, some oil fills up the lower bolt hole at the back. So when the bolt is installed withe the new cover, the oil gets pushed out and coats your nice clean surface so the gasket will not adhere well.

So I put the lower bolt in first to force out any oil in the hole, then remove it, re-clean the surface and then install the gasket. Much more reliable.

Hope this helps.

Brett Gibson JH5 20497
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Tom makes a good point all the bolt holes should have no oil in them, what cant be sqeezed out ends up being compressed, that can create hydraulic pressure so when you think the bolt is tight it really isn't.

Brett

Barthol
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Joined:	10-31-2013
Location:	Denmark
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Hi

Just a follow up.

I cleaned all the oil away from the sealing surfaces, (did not think about he bolt holes)

Anyway I spot glued the gasket in 6 or 8 places taking special care about the arc at the rear.

Tightend them and ran the engine. It looks like they are sealing properly now.

hope they will stay that way when summer comes.

Cheers
kim