alohajeff
NAXJA Forum User
- Location
- Lake Arrowhead, CA
Broken Rod... Motor Swap Q's - 2001 4.0L in 1993 XJ?
I was taking a nice leisurely drive in our 1993 XJ to the hardware store on Saturday when I heard and felt a small explosion that was followed by lots of oil smoke. I knew what had happened before I even crawled underneath to look. I pulled the oil pan today and found pieces of a piston. The block has a 2" diameter hole in the side of it. The current 4.0L HO motor is toast! Time for a "new" one.
I would like to find a lower mileage mile motor and drop it in. That has forced me to look at newer 4.0L's from wrecks, junk yards, etc. It looks like I can buy a lower mileage motor for a reasonable price. My concern is whether or not the 4.0L from say a 2001 XJ will drop in without major effort into my 1993. I've tried a few searches and I've learned all about the difference between WJ and XJ water pumps, motor mount styles, alternator locations, improved intake manifold flow, distributor vs. distributorless, OBD-I vs. OBD-II etc.
What I can't seem to verify is if a 2001 (or similar) 4.0L will drop in to a 1993 originally equipped with a 1993 4.0L. I guess another way of asking would be... can a 2001 4.0L long block from an XJ drop into a 1993 XJ? Ideally I would keep my existing wiring, intake manifold, throttle body, all of the sensors, and reuse them on the new motor. I've read that converting the electronics can be a bear. Different fuel pumps, speed sensor in the transfer case, etc. At this point I just want to get the rig back on the road ASAP. I am not looking for the combination that provides the most performance.
This has probably been covered but I couldn't find any links during my searches. I tried all sorts of different keywords without much luck. If there's a thread that has this information please flame me if necessary and then provide the link :thumbup:
Thanks!
Aloha
I was taking a nice leisurely drive in our 1993 XJ to the hardware store on Saturday when I heard and felt a small explosion that was followed by lots of oil smoke. I knew what had happened before I even crawled underneath to look. I pulled the oil pan today and found pieces of a piston. The block has a 2" diameter hole in the side of it. The current 4.0L HO motor is toast! Time for a "new" one.
I would like to find a lower mileage mile motor and drop it in. That has forced me to look at newer 4.0L's from wrecks, junk yards, etc. It looks like I can buy a lower mileage motor for a reasonable price. My concern is whether or not the 4.0L from say a 2001 XJ will drop in without major effort into my 1993. I've tried a few searches and I've learned all about the difference between WJ and XJ water pumps, motor mount styles, alternator locations, improved intake manifold flow, distributor vs. distributorless, OBD-I vs. OBD-II etc.
What I can't seem to verify is if a 2001 (or similar) 4.0L will drop in to a 1993 originally equipped with a 1993 4.0L. I guess another way of asking would be... can a 2001 4.0L long block from an XJ drop into a 1993 XJ? Ideally I would keep my existing wiring, intake manifold, throttle body, all of the sensors, and reuse them on the new motor. I've read that converting the electronics can be a bear. Different fuel pumps, speed sensor in the transfer case, etc. At this point I just want to get the rig back on the road ASAP. I am not looking for the combination that provides the most performance.
This has probably been covered but I couldn't find any links during my searches. I tried all sorts of different keywords without much luck. If there's a thread that has this information please flame me if necessary and then provide the link :thumbup:
Thanks!
Aloha
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