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Unread 04-27-2013, 06:58 PM   #1
hardy
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Join Date: Sep 2012
Location: Powder Springs, Georgia
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Engine Swap

Looking for a little advice.

I am replacing the 4.0 engine in my 98 Cherokee with a rebuilt older engine from a 94 or 95 Cherokee. Of course the head and block casting numbers are different but everything looks like it will interchange. I do plan to use the valve cover, intake and exhaust manifold from the 98 because there are a few differences.

If the flexplate the same or should I use the 98?

Are there other problems I might encounter???

Would I benefit from using the head from my 98 on the older engine.

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Unread 04-27-2013, 07:01 PM   #2
CJ7-Tim
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Quote:
Originally Posted by hardy View Post
Would I benefit from using the head from my 98 on the older engine.
Not eonough to go to the trouble of changing the head.

Any 1990-2001 XJ Cherokee or 1993-98 ZJ Grand Cherokee 4.0 L engine block will interchange.

Remove and re-use as needed or required from your original engine: Intake/Exhaust manifolds, flex plate/flywheel, cylinder head, distributor-less ignition or distributor assembly, engine sensors, fan belt driven accessories and mounting brackets.
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Unread 04-27-2013, 07:06 PM   #3
hardy
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The distributor and coil look the same and I had not planned to exchange them. Will this be a problem?
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Unread 04-27-2013, 07:07 PM   #4
CJ7-Tim
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Compare what you have to what the donor engine has. You may have to swap over some parts.
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Between 2009 when Obama took office, and 2013, median annual household incomes have fallen by more than $2,100.

Progressive Liberalism: Bringing you new Healthcare ideas so wonderful, they have to include mandatory participation ......

Originally Posted by Ronald W. Reagan: Government is not the solution to our problems; Government is the problem.
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Unread 04-27-2013, 07:12 PM   #5
hardy
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Thanks!!!
I am in the process of removing the old engine and everything is good until I got to those top bell housing bolts. I got the driver side out but can't get the socket on the pass side. I'm not sure what to do. I removed the motor mount bolt to lower the engine but still can't get on the stupid bolt. BTW...the one I got out seemed it was torqued about 100 lbs
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Unread 04-27-2013, 07:28 PM   #6
CJ7-Tim
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Most people lower the rear of the engine by removing the transmission crossmember. Support the rear of the engine with a floor jack or transmission jack.
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Between 2009 when Obama took office, and 2013, median annual household incomes have fallen by more than $2,100.

Progressive Liberalism: Bringing you new Healthcare ideas so wonderful, they have to include mandatory participation ......

Originally Posted by Ronald W. Reagan: Government is not the solution to our problems; Government is the problem.
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Unread 04-27-2013, 07:34 PM   #7
hardy
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That was my next option. I guess I will need to put the motor mount bolts back in and remove the crossmember.....seems like lots of trouble to remove a bolt????
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Unread 04-27-2013, 07:53 PM   #8
dino30
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Any 4.o will interchange .. there are some slight differences in the acc. mounting brackets when you get up to 99+ but i have an older 95 engine in my 99 Grand ... I used my intake , exhaust and my Distributor-less ignition system . I just used the main engine block , head , and covers from the older engine .. all my stuff bolted right up to it .. ...

As for the bolt . you need to remove the trans cross-member and lower the rear of the engine to get to it ...

Good luck ...
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