89base Posted January 30, 2017 Posted January 30, 2017 The 2.5L in my 89 MJ is getting tired. (45/80 leakdown no1 cyl. being worse ). What model and what years can I look for in the Jeep line up to replace this motor ? Understanding I will need to change the TBI intake manifold If I find a MPI engine. What other things would I need to switch over from the TBI engine ? General price range for an engine ? Thanks.
Pete M Posted January 30, 2017 Posted January 30, 2017 the block can be swapped with any MJ/XJ/wrangler 2.5L 84-2000 something. can't remember the actual cutoff. car-part.com can help with prices and searches. you might need to search for various years since the search engine only knows part numbers and I'm sure that changed over the years.
Eagle Posted January 30, 2017 Posted January 30, 2017 The Jeep 2.5L was also used in some years of the Dakota pick-up. I don't know which years, exactly, nor do I know if there were any differences in mounts or accessories.
FrankTheDog Posted January 31, 2017 Posted January 31, 2017 I paid $400 for a complete 1995 Wrangler with a good running 2.5 in it that I'm installing in my 2000 XJ.
Master7122 Posted January 31, 2017 Posted January 31, 2017 Not sure where you are located but there is a 86 Cherokee in the junkyard by me, complete 2.5l, manual trans and 4x4. Its at the blue island lkq in Illinois, zip code is 60406
omega_rugal Posted January 31, 2017 Posted January 31, 2017 get a 2.5l Dakota and rip it apart, you`ll get an AX15 with it...
FrankTheDog Posted January 31, 2017 Posted January 31, 2017 Probably even less of them then there are 2.5 XJ's.
mjeff87 Posted February 1, 2017 Posted February 1, 2017 If you are anywhere near southwestern PA, I have a spare 2.5 sitting in storage. You can have it for free if you can get it.... Jeff
89base Posted February 8, 2017 Author Posted February 8, 2017 Thanks for all the info. Here in Michigan it's to cold to spend much time in the garage so this change-out may wait for warmer weather. The MJ is not a daily driver so no hurry. Did find a 2.5 with 155K miles, removed from a Wrangler $400 only 75 miles away
Eagle Posted February 8, 2017 Posted February 8, 2017 Keep in mind that 155k miles on a 2.5L equates to more miles on a 4.0L. The 2.5L typically came with 4.10 gears (except the early 4-speed manuals -- and they didn't have overdrive). Using the more popular automatic 4.0L for comparison, those had 3.55 gears so the engine turned fewer revolutions for every mile driven. In terms of engine wear, that's equivalent to 179,000 miles. Still not "worn out." I have a 2.5L MJ that has 209,000 miles on it and didn't burn oil the last time I drove it. But I wouldn't just drop in an engine with 155k or 179k miles, without going through it and at least replacing the bearings. Better would be a complete rebuild.
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now