Looked at a cheap 91 xj today
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Year: 97
Model: Cherokee (XJ)
Engine: 4.0
Looked at a cheap 91 xj today
So Im looking at getting a cheap beater xj and need some advice. Its a 91 with a 93 engine in it. Problem is dude says it needs a timing chain? but it runs drives ok to 45ish? Its a disco d30/d35,non abs, and will have an OME 2.5" lift after the 4.5" lift gets swapped out, so it has potential after some axle swaps. Could the timing chain issue be a noncompatible or bad sensor instead? He said he modified the harness to run the new engine but I havent heard it run yet so I dont know. Its my old engine that had 190k on it and ran when it was mine. Im getting the xj as a project regardless but could use some tips on the engine swap part. It comes with a spare block with a recent chain (will just need some gaskets to throw on the good engine?) If thats truely the issue I can swap the good timing chain parts from the 91 to the 93 motor right? Thanks
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Year: 1990
Model: Cherokee
Engine: 4.0 I6
Hmm, theres not one thing I can think of that you would need to modify in the harness to make a 93 xj engine go into a 91 xj. I put a 98 motor into my 91, only thing i changed was distributor, temp sensor, and oil sending unit.
Wait I take that back, I extended the cooling temp sensor wire from the back of the head up to the thermo stat housing. But in a 93, thats a non issue.
Sounds like you are walking into a rats nest, before messing with the timing chain (super rare for any problems to happen in there), check the distributor timing.
If it had a timing issue it wouldnt run ok to a certain speed and then mess up, it would be consistant. Maybe fuel pump? Check Pressure.
Keep us updated =D
Wait I take that back, I extended the cooling temp sensor wire from the back of the head up to the thermo stat housing. But in a 93, thats a non issue.
Sounds like you are walking into a rats nest, before messing with the timing chain (super rare for any problems to happen in there), check the distributor timing.
If it had a timing issue it wouldnt run ok to a certain speed and then mess up, it would be consistant. Maybe fuel pump? Check Pressure.
Keep us updated =D
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Year: 97
Model: Cherokee (XJ)
Engine: 4.0
Ok I was wrong he swapped sensor not spliced plug into harness. It hasnt been run without the air box its just torn apart from the swap. For $400 I dont really care as long as it drives lol. He says shop said the timing chain is "stretched" but it comes with a good condition used one.... I "found" a newer D30 and I have an extra 8.25 with it sooo I just need dude to swap out his lifts and I can drive the new money pit home and gut it.
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