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Valve head gasket sealant?

Old 05-09-2020, 03:01 PM
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Default Valve head gasket sealant?

2007 Dodge Caliber, 4 cyl, has a fairly decent valve cover leak from cylinder #2.

Car has over 200K miles and is a POJ, but still runs and does the job. They cannot afford another car, nor the job to fix correctly.

Anyone ever use the sealant with any Luck?

Any brands to use!

Thanks
Old 05-09-2020, 03:17 PM
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DIY after watching a youtube video? Thats like a 10 minute job and a $10 gasket.
Old 05-09-2020, 04:10 PM
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Get a new gasket....very easy
reusing the existing gasket and adding silicone...90% failure rate
Shove some paper towels down the hole once the coil is removed if you dont have a air gun...clean the coil well...clean valve cover...couple of dabs of silicone to hold new gasket in place tighten down slowly in a pattern starting from the center first in 3 increments till tight and viola!!!!
Old 05-09-2020, 04:32 PM
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I agree with the other replies. Fix it right. The instructions for most RTVs that I have seen is to have a surface clean and dry before application, and there is a cure time before putting back into service. That will likely be impossible to achieve with an existing leak, I assume this is why Lprizman above references a very high failure rate.

You sure the diagnosis is valve cover gasket and not heat gasket? That would be a different ball game. I ask because I don't normally hear valve cover gaskets referenced to a specific cylinder.
Old 05-09-2020, 05:27 PM
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Valve cover gasket or head gasket? You mentioned both.
Old 05-09-2020, 05:39 PM
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Believe it's a valve cover gasket, here's a picture of where it's leaking.


Old 05-09-2020, 06:04 PM
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Looks like valve cover. Replace the gasket with a new one. I still think you need a tube of rtv for a couple of points where two components meet. Its not that hard of a job.
Old 05-09-2020, 06:54 PM
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Originally Posted by kmagnuss View Post
Valve cover gasket or head gasket? You mentioned both.

....My apologies.....used cell phone to post and thinking about both things at once.

Two of my buddies said that on this particular car, EVERYTHING is hard to work on....????? Not certain why.

OK,, so like I thought...never the easy way out. Just have to find time that's all. Hopefully it's not a 6 hour job.


Thanks everyone.
Old 05-10-2020, 04:35 AM
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Yes valve cover....that's a top pic looking down at the back of top of the motor to the exhaust manifold...200K on those junks is impressive...


30 to 45 minutes tops to do....dont over think it or get intimidated
Old 05-10-2020, 05:44 AM
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Easy fix, $20 gasket, 30 minutes, 6 pack, You will be fine. Like Lprizman said, "DON'T over think It", that is what the beer is for.
Old 05-10-2020, 06:30 AM
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New gasket
Permatex "red" is their high temp silicon sealant...at the most a VERY thin layer on a new gasket but if you buy a decent brand gasket shouldn't need it.
Old 05-10-2020, 08:48 AM
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Thanks all, will first do a you-tube or two regarding this particular model then walk the young lady & the family through it. Good time as any to learn how to use a wrench I guess!.

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