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Unread 06-24-2014, 12:13 PM   #1
lDlH
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Questions about 01' 0331 head swap

So I am currently taking out my cracked 0331 head in my 01 cherokee and wanting to put in a non 2000/2001 head so i found a 98 head for $200 at the local pick n pull.(of course ill magnaflux and get it resurfaced) My Question was by putting in an older head what things do i need to change? So far i've read something about the coil pack mount or something but have no clue what else.
Also While everything is off Should i replace/look at anything else.
(Before taking apart oil pressure would be at 0 at times at idle and at higher rpms 15 max, i already replaced the sending unit, still no fix)

Anything would help me greatly! Thanks! DH

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Unread 06-24-2014, 07:39 PM   #2
carnuck
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There is no mounting point for the coils on the older heads. Have you checked to see if it's covered under the recall by Chrysler?
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Unread 06-29-2014, 07:40 AM   #3
cruiser54
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Quote:
Originally Posted by carnuck View Post
There is no mounting point for the coils on the older heads. Have you checked to see if it's covered under the recall by Chrysler?
Please supply some supporting documentation for this "recall".

I'm sure many others would be interested in that info also.
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If you own a Renix Jeep, you'll want to check this out. >

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Unread 06-29-2014, 09:16 AM   #4
CJ7-Tim
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With such low oil pressure, I would not expect many miles out of that engine. Consider a complete engine swap or a partial rebuild.


For the head swap, you will need to buy or fabricate an exhaust manifold to head adapter plate for the non-0331 head. The 0331 head vs. the older heads, the heads have different exhaust port locations and sizes.

See this thread on another XJ Forum -> http://www.naxja.org/forum/showthread.php?t=919384

A good used TUPY 0331 head from TJ or WJ has the improved, non-cracking casting that will make the swap bolt-on with no modifications or adapters.








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Unread 06-29-2014, 10:54 AM   #5
cruiser54
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Quote:
Originally Posted by CJ7-Tim View Post
With such low oil pressure, I would not expect many miles out of that engine. Consider a complete engine swap or a partial rebuild.


For the head swap, you will need to buy or fabricate an exhaust manifold to head adapter plate for you non-0331 head. The 0331 head vs. the older heads, the heads have different exhaust port locations and sizes.

See this thread on another XJ Forum -> http://www.naxja.org/forum/showthread.php?t=919384

A good used TUPY 0331 head from TJ or WJ has the improved, non-cracking casting that will make the swap bolt-on with no modifications or adapters.


Tim, have you heard of a recall on this? I searched high and low and could find nothing.

Hoping carnuck comes through with some documentation to support his claim.





.
Hmmmm
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Quote:
Originally Posted by chris87xj View Post
If you own a Renix Jeep, you'll want to check this out. >

An index to over 25 write-ups can be found in Post #1.

Cruiser's Mostly Renix Tips
My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
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Unread 06-29-2014, 11:13 AM   #6
CJ7-Tim
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AFIK there is no recall. Contact Chrysler/Jeep directly.
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Unread 06-29-2014, 11:25 AM   #7
cruiser54
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Quote:
Originally Posted by CJ7-Tim View Post
AFIK there is no recall. Contact Chrysler/Jeep directly.
Doesn't really matter to me. I'm all Renix.

Carnuck's probably our go-to guy here since he mentioned it.

Just hoping he chimes back in with more info.
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Quote:
Originally Posted by chris87xj View Post
If you own a Renix Jeep, you'll want to check this out. >

An index to over 25 write-ups can be found in Post #1.

Cruiser's Mostly Renix Tips
My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
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Unread 07-01-2014, 02:35 PM   #8
carnuck
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Wow! Checked the internet and it appears they rescinded their "silent" recall. My son bought an '01 Grand Cherokee in Sept '00 with the 4.0L and they replaced the head at 30K and they said it was under recall at the time (100,000 mile drivetrain warranty). Only thing I can find now is coils and injectors under recall.

That was through Courtesy Chrysler/Jeep in Poulsbo (now gone along with the Courtesy Ford dealer I worked at)
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Unread 07-01-2014, 04:36 PM   #9
cruiser54
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Some clarification is in order here.

Having been a service manager and shop foreman at an aMC/Jeep/Chrysler dealership from 1980 through 1992, I can assure you there is no such thing as a "silent recall".

Recalls are mandated by the National Highway Transportation and Safety Administration.

Technical Bulletins are put out by the manufacturer to identify service issues and how to address them.

Policy Adjustment is on a case by case basis, the extension of the timeframe of repairs under the Factory's warranty program.
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Quote:
Originally Posted by chris87xj View Post
If you own a Renix Jeep, you'll want to check this out. >

An index to over 25 write-ups can be found in Post #1.

Cruiser's Mostly Renix Tips
My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
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