Coolant leak from timing chain case cover - JeepForum.com
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Unread 04-15-2014, 09:05 PM   #1
tooshort85
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2005 WK 
 
Join Date: Jul 2011
Location: Fairfield, CA
Posts: 25
Coolant leak from timing chain case cover

Hey guys, just a quick question for anyone who had gone as deep into the engine as exposing the timing chains.

I have a 4.7 that has developed a coolant leak. It drips down from the drivers side of the front head. If I look under the alternator I can see a little wet spot after first shutting down the engine after a drive. At first I thought the head gasket was the problem but have kind of ruled that out (I hope). I now think the leak is coming from the timing chain case where the upper radiator hose connects to the block.

My question is how common is this and is there a gasket in there? What would be my best option to repair this?

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Unread 04-16-2014, 05:14 PM   #2
kentman
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2006 XK Commander 
 
Join Date: Jan 2004
Location: Wilmington, NC
Posts: 1,429
Water pump? I just did the water pump on the XK.
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Unread 04-17-2014, 02:15 PM   #3
WJFrank88
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2004 WJ 
 
Join Date: Sep 2010
Location: Westminster, MD
Posts: 105
Bumping this.

I've developed a similar problem after my wheeling trip this weekend. Looking for guidance as well.
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Unread 04-17-2014, 06:02 PM   #4
tooshort85
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2005 WK 
 
Join Date: Jul 2011
Location: Fairfield, CA
Posts: 25
It isn't the water pump, I know what that looks like and have replaced mine probably about 6k miles ago. The point where it appears to be leaking is right under the alternator. I'm gonna dig up a picture real fast and will post again where I think it is coming from.
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Unread 04-17-2014, 06:11 PM   #5
tooshort85
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2005 WK 
 
Join Date: Jul 2011
Location: Fairfield, CA
Posts: 25


Ok, I hope that picture worked.

The problem in my opinion is the orange strange shaped gasket on the top, that is where the coolant flows out and to the radiator, connects to the upper radiator hose.

My questions is how much of a task is it to take off and replace the timing chains case cover? Also where can I get the gasket?

I'll take off the alternator soon and see if I can be certain that is where the coolant is coming from, but as of now I'm about 99% sure.

Another question I have is, what bolts could I possibly torque down just a bit to try and see if it will seal it up?

Thanks guys

Last edited by tooshort85; 04-17-2014 at 06:11 PM.. Reason: Fixed link
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Unread 04-19-2014, 08:19 AM   #6
tooshort85
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2005 WK 
 
Join Date: Jul 2011
Location: Fairfield, CA
Posts: 25
Bump, man this forum REALLY disappoints me sometimes. I know there are some better mechanics in here with some insight.
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Unread 04-19-2014, 11:08 AM   #7
jebo0420
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2006 WK 
 
Join Date: Aug 2012
Location: daytona, fl
Posts: 110
Not sure if my 2 cent will help or hurt, but I just had my 4.7 rebuilt the timing cover wasn't that bad to remove. "With the right tools" I replaced that gasket as well as everyone that came with a complete gasket set, check the interweb. If you have a puller and the knowledge to pull the front apart just do it, I'd say do the front seal while you have it apart and u already have the timing cover off. Good luck with however u get it fixed.
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Unread 04-19-2014, 11:10 AM   #8
jebo0420
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2006 WK 
 
Join Date: Aug 2012
Location: daytona, fl
Posts: 110
Wouldn't try to over torque the bolts last thing you'd want is to (a) break a bolt, (b) strip the treads fwiw
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