intake gaskets for 1992 6.2 diesel

[95BARVO]

I have a bad valve cover leak on my 1992 M998 which has the 6.2 diesel. It looks like I need to pull the intake and remove the fuel injector lines to install new valve cover RTV to fix the leak.

Does the 6.2 diesel have the same intake gaskets that a civilian GM pickup 6.2 would have? If so I would just orders them from our local NAPA.

Also any tips and tricks for the valve cover job?

thanks for your help!

 

[rcamacho]

Need to do the same...


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[Keith_J]

The gasket set I got from Amazon has gaskets for all manifolds, including earlier EGR options. Delphi 7135-263. Get a good gasket scraper, plug the intake ports with paper towels. Crowfoot wrench set with long extension helps on the IP nuts on the injector lines.

While at it, this is a great time to port match the intake manifold. Make sure the oil drain back passages are clear. And check crankcase pressure and blow by as this will increase leak rate.

 

[cucvmule]

If you do not own any line wrenches now is a good time to invest in some before you round off flare nuts on the injector lines. Clean and keep clean, dirt is your enemy here or anywhere there is fuel going into any fuel line. Do not twist off lines. If one seems to be rusted up put some penetrating oil on, and try and run nut back and forth to help with breaking free. Good Luck

 

[Retiredwarhorses]

First off, the factory does not use a gasket on valve covers, just straight RTV sealant, the key is a clean oil free application surface, followed by a NEW cover, do not reuse the old cover unless you want to be doing it again.
Next up, you don’t need to remove the intake manifold, just undo the hardlines at the injectors and bend them upwards just enough to get the old cover off and on.
After you install the new cover, wait 24hrs before operating the engine

 

[rcamacho]

First off, the factory does not use a gasket on valve covers, just straight RTV sealant, the key is a clean oil free application surface, followed by a NEW cover, do not reuse the old cover unless you want to be doing it again.
Next up, you don’t need to remove the intake manifold, just undo the hardlines at the injectors and bend them upwards just enough to get the old cover off and on.
After you install the new cover, wait 24hrs before operating the engine

Any tip on transferring emissions / compliance stickers to new covers?


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[Retiredwarhorses]

Any tip on transferring emissions / compliance stickers to new covers?


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no sir....consider those as permanent.
It can be problem if in fact your state requires it, but if you have ever tried to get a factory valve cover off without bending and distorting it, you would know that it would be leaking again within minutes.
just my experience.....

 

[rcamacho]

Love to see someone waterjet valve cover rim reinforcements


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