Twin Plug Valve Cover Gaskets

[911boost]

For those of you with your 3.3L's twin plugged, are you using the stock valve cover gaskets?

Thanks,

Bill

[rsrmike]

Yes, it helps to cut a small notch for the #3 & #4 plug connector, but not essential, it just helps putting the plug connectors back on the first time since new gaskets

Just look at your old ones when you get them off, you'll see most likely

[rsrmike]

The normal green gaskets w/ small grey bead of sealer printed on seem to work just fine.

[911boost]

Thanks Mike, I need to order another set. I have the really nice billet twin plug valve covers from IA, but it looks like they are leaking from around the stud holes.

I am going to order a set from Pelican and reinstall them.

Bill

[sand_man]

I run the silicone re-usable ones, purchased from our host...

EDIT: of course I'm running the OEM 930 covers that were cut for extra plugs...not the IA ones, or anything 964 based.

[911boost]

my OEM 930 covers were cut by a blind person using an ultra dull hole saw, or maybe a rock and a bigger rock, so I had to get something new.

[NathanUK]

Are the silicone ones any good?

[sand_man]

Originally Posted by NathanUK

Are the silicone ones any good?

Have had them on and off too many times to count, and no leaks...they've paid for themselves.

[David]

I'm having good luck with drilled stock 930 covers and stock type gaskets.

[rsrmike]

Originally Posted by BSiple

Thanks Mike, I need to order another set. I have the really nice billet twin plug valve covers from IA, but it looks like they are leaking from around the stud holes.

I am going to order a set from Pelican and reinstall them.

Bill

No sweat, be sure to get new aluminum washers and lock nuts whichever route you take. I've never used the silicone gaskets but that sounds like a neat way to go too. Enjoy!
Mike

[les_garten]

I've always been amazed at their propensity to leak around those studs?

[sand_man]

The silicone gaskets, fit tightly/snugly around the cover studs and helps prevent the leaks. Please don't throw me under the bus, but I've also re-used the same nylocs/washers four times now...still no leaks. I also install my covers on the "loose" side. I go around with a short handled ratchet and get all of the nylocs just barely snug to the covers, and then go around one more time hitting each nut another quarter turn or so, in a criss-cross pattern. YMMV.

[911boost]

You don't torque them down to anything light?

[sand_man]

Don't get me wrong, they are snug. By the time I'm done, the orangish colored silicone gaskets are just barely squeezing out.

[911boost]

Thanks.

I did order all new nuts and washers. I guess the problem in the past has been the gasket has torn around the studs. I will try a new set of gaskets with the silicon bead on the bottom (already have them ordered from PP), and if I am still having issues, I'll try the thicker orange ones that you have.

On a side note, I'm looking forward to this job, as I can use the lift, and not be on my back...yeeeah.

Bill

[sand_man]

I'd be anxious to use the lift as well, but if you jack up one side at a time, you minimize any of that "black gold...texas tea" from leaking out when you remove the lowers.

[911boost]

I know, I thought about that as well, but its time for an oil change anyway....

[A930Rocket]

I'm surprised how often they leak as well. Seems to be hit or miss and no matter if I use new or re-use the nylocks and washers.

I've got to powder coat my lowers again and when I do, I'll go with the silicone gaskets/new nylocks/etc.

[les_garten]

Originally Posted by BSiple

You don't torque them down to anything light?

If you get "Torquey" on the silicone gaskets, the Valve covers cut them up.

[rsrmike]

Sounds like that is the only drawback to the silicone,
If only someone molded thin bushings into the gaskets, giving you a "stop point" for the valve cover yet retaining the proper compression of the silicone...