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Possible head gasket?
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=81127
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Author:  tcoilburner [ Fri Jan 16, 2015 7:03 pm ]
Post subject:  Possible head gasket?

This has started 2 years ago. In 2013 I lost about 4 cups of coolant over the year. I found in February 2014 that the coolant bottle cap gaskets were dry rotted. I replaced the cap and the coolant loss stopped. Then I started to notice the coolant bottle turning a little black above the coolant level. Today I was going to check to see if the cooling system was building pressure right after starting. I decided to check it just before I started and it still had pressure from when I got to work a 8:00. This was 2:30 in the afternoon. No pressure was built after 30 seconds after starting. If this is a head gaskets i would like to get it fixed before camping season starts and the heavy towing.

Author:  flman [ Fri Jan 16, 2015 7:07 pm ]
Post subject:  Re: Possible head gasket?

After 6 and a 1/2 hours in Michigan it must have been cooled totally down? Do you notice any coolant in the overflow bottle, right of the radiator cap? Any puddles underneath and coolant leaking down the header pipe?

Author:  tcoilburner [ Sat Jan 17, 2015 12:42 am ]
Post subject:  Re: Possible head gasket?

I have not seen any amount of coolant in the overflow and was not aware of the over flow tank until Keith at Green Diesel showed me it in October. No external leaks have been found yet, or coolant puddles. And yes the jeep was well cooled here in Michigan.[WINKING FACE]

Author:  tcoilburner [ Wed Jan 21, 2015 1:47 pm ]
Post subject:  Re: Possible head gasket?

Has anyone seen a head gasket go, but only loose compression under high load and no coolant loss?

Author:  flman [ Wed Jan 21, 2015 2:18 pm ]
Post subject:  Re: Possible head gasket?

tcoilburner wrote:
Has anyone seen a head gasket go, but only loose compression under high load and no coolant loss?


I only had one failure, but that compression gas has to go past the cooling galleries on the way out in many cases. Some have had a hairline crack in the block as well.

Author:  tcoilburner [ Mon Jan 26, 2015 10:34 am ]
Post subject:  Re: Possible head gasket?

Ok, I have convinced my self to spend the money to do the head gasket, before I blow-it up towing this summer. What is everyone best practice for what to replace, and where to get the best pricing? I am doing the ARP studs, is the 130 for the inside and 125 for the outside studs still the best bet? I have arleady done the timing belt, tensioners, and water pump last year with a 106,000 miles. It has 127,000 miles now.
Side question, I was talking to my Jeep dealer and his catalog show that there is a change in the rocker arms and they my be a slight bit different in height? Anyone run it to this before. I was only checking on this if needed.

Author:  LMWatBullRun [ Thu Jan 29, 2015 2:41 pm ]
Post subject:  Re: Possible head gasket?

tcoilburner wrote:
Ok, I have convinced my self to spend the money to do the head gasket, before I blow-it up towing this summer. What is everyone best practice for what to replace, and where to get the best pricing? I am doing the ARP studs, is the 130 for the inside and 125 for the outside studs still the best bet? I have arleady done the timing belt, tensioners, and water pump last year with a 106,000 miles. It has 127,000 miles now.
Side question, I was talking to my Jeep dealer and his catalog show that there is a change in the rocker arms and they my be a slight bit different in height? Anyone run it to this before. I was only checking on this if needed.


Best advice to date is 130/120-125 inside/outside. That seems to work.

LMW

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