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Unread 08-03-2011, 11:35 PM   #16
Jeepdude22
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Thanks for all the info! Hopefully it helps!! I get to do my head gasket this weekend on a 04 4.7 Grand cherokee. I dont know how chrysler managed to put all that **** under the hood. I almost **** the first time i had to change my spark plugs.

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Unread 09-21-2011, 01:10 PM   #17
JStMarie
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2.5l ?

This is a great write-up. I've got a 2.5L '98 TJ that will likely need the head gasket replaced. Is there anything significantly different about the 2.5L I need to know about?

I'll take pics and post the 2.5L head gasket replacement job when I get around to doing it, which should be within a month or two.
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Unread 10-15-2011, 05:09 PM   #18
Pickneters
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I think you may have inspired me to handle this!
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Unread 11-08-2011, 01:50 PM   #19
jonifun
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So are the valves self adjusting? I have a spare head that is 200miles old. I was going to put this on my 200000+ zj. Will I need to do anything different on reassembly with valve adjustment shimming or is it magical. ??
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Unread 02-02-2012, 03:11 PM   #20
mitchj01
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Quote:
Originally Posted by JStMarie
This is a great write-up. I've got a 2.5L '98 TJ that will likely need the head gasket replaced. Is there anything significantly different about the 2.5L I need to know about?

I'll take pics and post the 2.5L head gasket replacement job when I get around to doing it, which should be within a month or two.
Bump on this question- I have an 89 2.5l
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Unread 03-06-2012, 05:46 PM   #21
CherokeeInn
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When I go to loosen the rocker arms they move with it. What do I do?
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Unread 04-08-2012, 06:39 AM   #22
blazepsi
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I need to do this to my 98 GC. Tnx for the write up...
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Unread 06-18-2012, 08:06 AM   #23
TJ-Tim
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Just about finished with my 01 head replacement. AWESOME WRITE UP!!! Was extremely helpful, thank you for posting it. I'm sure this will help/has helped a lot of people.
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Unread 10-02-2012, 09:41 PM   #24
Pfeifer30
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Awesome Right up, Helped me get things apart in a timely manner. Only question I have : Do I need to find TDC during the reinstall process?
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Unread 06-29-2013, 07:31 PM   #25
Elitexx187
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Great write up. I'm currently in the process of changing the head gasket in my '93 cherokee and I've been using this write up and it's helped a lot. But does anyone know where I can find the torque specs for the head and rocker bolts?
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Unread 07-02-2013, 08:44 PM   #26
JStMarie
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2.5l

Just a follow-up, I did end up replacing the head on my '98 4 cylinder. The procedure is the same; very little difference except more room to work in.

You do not have to find TDC for this procedure. Also, the rocker arms require no adjustment, just tighten each side of each individual rocker arm 1 turn until tight then torque to spec (21 foot-lbs for the '98 TJ).

Use copious amounts of PB blaster to spray down the exhaust and intake manifold bolts. I sprayed them several times over the course of 3 or 4 days and they all came off with no issue at all. I've heard a lot of nightmares of broken bolts and with a jeep as old as mine I took them to heart. PB blaster was a Godsend.
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Unread 11-30-2013, 09:37 PM   #27
Jasoncwrd2002
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Quote:
Originally Posted by JStMarie View Post
Just a follow-up, I did end up replacing the head on my '98 4 cylinder. The procedure is the same; very little difference except more room to work in.

You do not have to find TDC for this procedure. Also, the rocker arms require no adjustment, just tighten each side of each individual rocker arm 1 turn until tight then torque to spec (21 foot-lbs for the '98 TJ).

Use copious amounts of PB blaster to spray down the exhaust and intake manifold bolts. I sprayed them several times over the course of 3 or 4 days and they all came off with no issue at all. I've heard a lot of nightmares of broken bolts and with a jeep as old as mine I took them to heart. PB blaster was a Godsend.
I am doing my 98 Jeep 4cyl right now. The header bolts about got me to the point of throwing in the towel though.
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Unread 02-12-2014, 12:29 PM   #28
JStMarie
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Quote:
Originally Posted by Jasoncwrd2002 View Post
I am doing my 98 Jeep 4cyl right now. The header bolts about got me to the point of throwing in the towel though.

Any luck on this? How did it turn out?
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