Cracked head

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Dec 17, 2014 | 03:26 PM

#16

Parsnip

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Joined: Dec 2011

Posts: 1,050

Likes: 2

From: Roanoke, VA

Year: 1990

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by XJwonders

u mind elaborating on that?

The ports doesn't line up between earlier heads and the 2000+ exhaust manifolds.

There's no tapped holes on earlier heads to hold the coil packs on it. Mounts ll have to be fabricated.

We did this on a wj which had the split exhaust manifold, it doesnt leak...but maybe there's a difference, idk. And the coil does need a support yes but that's super easy to make

Dec 17, 2014 | 03:30 PM

#17

XJwonders

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Joined: Jan 2013

Posts: 19,219

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From: west chester, pa

Year: 1999

Engine: 4.0

It doesn't leak. But the exhaust manifold ports are much smaller Probably gonna cause extra heat in that area from restrictions

Dec 17, 2014 | 04:27 PM

#18

Parsnip

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Joined: Dec 2011

Posts: 1,050

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From: Roanoke, VA

Year: 1990

Model: Cherokee

Engine: 4.0

Well, like I said we did this on a wj and it ran fine, but it's just my 2¢, he could also get lucky and find a jasper motor at the scrap yard like we did too

lol

Dec 17, 2014 | 05:07 PM

#19

Lake00XJ

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Joined: Sep 2014

Posts: 554

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From: Ohio

Year: 2000

Model: Cherokee (XJ)

Engine: 4.0L

Quote:

Originally Posted by lualchro

Make sure it is cracked for a fact, not all 00/01 crack, it could be something else I got a 2000 XJ with more than 180k on it and running strong. I know the casting was not the best, but I think it will hold as long as it does not overheat badly. If cracked, look for another casting, the newer heads are a good choice and bolt on (as I have read), or the one mentioned above from Clearwater

it was overheating when we bought it, and has overheated a few times since, so I even if it's not cracked, I'd rather replace it since the parents are paying for repairs.

Dec 17, 2014 | 05:12 PM

#20

Lake00XJ

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Joined: Sep 2014

Posts: 554

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From: Ohio

Year: 2000

Model: Cherokee (XJ)

Engine: 4.0L

Quote:

Originally Posted by Parsnip

Well, like I said we did this on a wj and it ran fine, but it's just my 2¢, he could also get lucky and find a jasper motor at the scrap yard like we did too

lol

I think it would be fun to try and cram a v12 where the i6 is. For no other reason than pure entertainment.

Dec 17, 2014 | 07:59 PM

#21

Parsnip

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Joined: Dec 2011

Posts: 1,050

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From: Roanoke, VA

Year: 1990

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by Lake00XJ

I think it would be fun to try and cram a v12 where the i6 is. For no other reason than pure entertainment.

Just depends on how much xj you want left when it's all said and done

Dec 20, 2014 | 05:45 PM

#22

Lake00XJ

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Joined: Sep 2014

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From: Ohio

Year: 2000

Model: Cherokee (XJ)

Engine: 4.0L

Well my jeep issues just keep getting worse. The guy I took it to said he's about 90% sure it's a cracked block. And he will do more testing and know for sure sometime soon.

Dec 20, 2014 | 07:56 PM

#23

Turbo X_J

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Joined: Sep 2009

Posts: 8,567

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From: ☼ Blackhole Sun

Year: My Jeep is a GMC

Probably less expensive to just slap an new engine in it and be done.

Dec 20, 2014 | 07:57 PM

#24

Lake00XJ

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Senior Member

Joined: Sep 2014

Posts: 554

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From: Ohio

Year: 2000

Model: Cherokee (XJ)

Engine: 4.0L

Quote:

Originally Posted by Turbo X_J

Probably less expensive to just slap an new engine in it and be done.

that's what we were thinking. And then we hopefully won't have any major problems to deal with

Dec 20, 2014 | 08:03 PM

#25

Turbo X_J

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Joined: Sep 2009

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From: ☼ Blackhole Sun

Year: My Jeep is a GMC

Quote:

Originally Posted by Lake00XJ

it was overheating when we bought it, and has overheated a few times since,

New complete cooling system.

Dec 21, 2014 | 07:45 AM

#26

Lake00XJ

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Joined: Sep 2014

Posts: 554

Likes: 7

From: Ohio

Year: 2000

Model: Cherokee (XJ)

Engine: 4.0L

Quote:

Originally Posted by Turbo X_J

New complete cooling system.

We have replaced the radiator, cleaned the heating core, flushed it several times and it was loosing coolant all the time, but wasn't leaking.

Dec 22, 2014 | 05:05 PM

#27

Lake00XJ

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Senior Member

Joined: Sep 2014

Posts: 554

Likes: 7

From: Ohio

Year: 2000

Model: Cherokee (XJ)

Engine: 4.0L

Well, it's official. I got a cracked block. Ordered a new one from advanced auto parts. 3 year/100k mile warranty.

Dec 24, 2014 | 07:22 PM

#28

s346k

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Joined: Feb 2012

Posts: 2,282

Likes: 18

From: central IN

Year: 1997

Engine: 4.0

damn it my avatar lol

Dec 25, 2014 | 08:35 AM

#29

Kalali

Senior Member

Joined: Apr 2012

Posts: 578

Likes: 4

From: Ocean, New Jersey

Year: 2000

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by Lake00XJ

Well, it's official. I got a cracked block. Ordered a new one from advanced auto parts. 3 year/100k mile warranty.

This might have changed but when I was looking for my replacement cylinder head most auto parts stores including NAPA only carried the OEM 0331 units. That's the reason I went with Clearwater since theirs was modified. Worth asking if it really matters to you.

Dec 25, 2014 | 09:04 AM

#30

Lake00XJ

Thread Starter

Senior Member

Joined: Sep 2014

Posts: 554

Likes: 7

From: Ohio

Year: 2000

Model: Cherokee (XJ)

Engine: 4.0L

Quote:

Originally Posted by Kalali

advance auto parts says its a 0331 head as well. But I have to use the one they give me if I want the warranty.

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