no. 3 cylinder head cover

[LoveMySupra]

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=EM&P=32

Is there a special gasket that goes between the cylinder head, the no. 3 cylinder head cover, or the big bolts that secure the no. 3 cylinder head cover?

Mine has nothing but 3 bare metal surfaces.

Is this an oil leak and mess waiting to happen? Should I put some fipg in there?

 

[jetjock]

The cover is the gasket.

 

[Wayne G.]

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=EM&P=32

Is there a special gasket that goes between the cylinder head, the no. 3 cylinder head cover, or the big bolts that secure the no. 3 cylinder head cover?

Mine has nothing but 3 bare metal surfaces.

Is this an oil leak and mess waiting to happen? Should I put some fipg in there?

Sounds like your missing the center cover. The center cover is sheet metal covered with rubber to seal the plug valleys. It will also keep oil out if the rubber is intact.
It is held in place by three large plugs in the center. This cover also provides support for the spark plug boots ( with stock plug boots).

 

[CyFi6]

A lot of people replace the no 3 cover with either drain plug gaskets, FIPG, or o rings to seal them up. If they aren't leaking, you have nothing to worry about. Check this out for more info. http://www.toyota-supra.info/forums/mkiii-faq/7527-got-oil-on-top-of-your-spark-plugs.html

 

[hvyman]

I'd just pull it off an use drain plug gaskets. That works the best.

 

[LoveMySupra]

there seemed to be gasket like stuff around one of the 4 holes but I wasn't sure if it was something built onto the cover or if it was crusty oil. I want to use the cover to support the stock spark plug boots. would it be best to put a thin or medium layer of fipg around the bolt holes on both sides of the cover or could a bare cover, no gasket material, keep oil out?

So, I have the no. 3 cylinder head cover with zero rubber or gasket maker. Will this leak? Secondly, if I do put drain plug gaskets in there without the cover, will that affect the stock sprak plug boot performance; ie moving around and having a loose connection.

As always, thanks very much for the help guys!!

 

[Poodles]

It's a seal, replace it if it's missing the rubber.

 

[suprarx7nut]

Worthwhile to spend the $40-50 to replace, but probably not a huge deal to leave as is. Just makes your engine more messy.

That's a bigger deal to some than others.

Sent from my ADR6400L using Tapatalk

 

[LoveMySupra]

Thanks everyone, the input is very appreciated!