New Techonology Gaskets and their Sealing

Posted by Texasmark1 on January 10, 2017 at 11:30:54 from (75.106.104.97):

I find this interesting and may be helpful to some of you. In the article it speaks of present day intake manifold leaking problems. I had a 1996 to '99, forget which but that era, 350 Tahoe that developed said leaking intake manifold. It was one crazy repair job for me working along trying to get the wiring and all 25 (roughly) sensors and wiring out of the way so that I could get to the gasket. I wound up suspending the wiring harness and intake manifold from the hood, several inches above the block and that worked.....just lifted it all straight up.

What I found from GM with their OEM engine assembly was a sloppy, gooey squirted in mess that they apparently called a gasket......no wonder it leaked.

I replaced it with the gasket as mentioned herein and it was a beautifully crafted gasket, molded blue silicon 0ring in the metal carrier and all. No way could you overtighten and squirt out the sealer. Highly recommend it for the job if it applies to you.

Got all the sensors hooked back up but one, the one on the distributor. Took it out for a test drive and acceleration and all that part was really squirrely. Being a first timer at this I figured the computer went nuts with the battery disconnected and had to "find itself". After a day of so ot that I realized that something is wrong and found the hidden connector and where it went.

The rest was uneventful.

Also on new techonology is addressing the dry/wet gasket question for after market repairs which I like, and the head gasket treatment which I think is long overdue.

The other thing is their addressing gaskets that don't need retorquing like a lot of 1960's era repair manuals (to name a period) that say to retorque your head and reset your valves.....with your nice shiny, clean and neat newly overhauled and painted engine getting oil puked all over it and the rest of things......only did it once.....back in the '70's a Chevy V8 setting hydraulic lifters thinking that the preload on filled lifters wouldn't do the job adequately and all...haven't done one since and haven't had to. One thing that may have helped was that I never put a head gasket on dry. Always used Copper Coat aerosol, per the directions on the can and torqued in 3 steps, X pattern, with wire brushed bolt threads, thread chased block threads and a tad of oil for wet torque.

http://www.felpro-only.com/blog/clean-dry/

Replies:

• Re: New Techonology Gaskets and their Sealing David G 15:25:44 01/10/17 (0)

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