feerocknok Posted April 8, 2006 Share Posted April 8, 2006 Yeah... My father and I were ready to drop the new tranny onto the truck, but we decided to check a cylinder that had a messed up spark plug. Multiple holes were in the top of the piston that we could see from where the spark plug goes in. Apparently the 2.5's dead. Suggestions? I'm pretty pissed off about this truck right now. Link to comment Share on other sites More sharing options...
Pete M Posted April 9, 2006 Share Posted April 9, 2006 car-part.com might help finding a new block. I've heard that the newer 2.5Ls are a good upgrade. Jeep on! --Pete Link to comment Share on other sites More sharing options...
87manche Posted April 9, 2006 Share Posted April 9, 2006 man, I wish I would have known sooner. Just sold a running 2.5, trans and t-case for $175 on Naxja. If that deal falls through it's yours for that price. It even came out of a 86, had 114K on it. Link to comment Share on other sites More sharing options...
barnygeroell Posted April 9, 2006 Share Posted April 9, 2006 just make sure you don´t switch from TBI to MPI if you switch you will need all the wires Link to comment Share on other sites More sharing options...
feerocknok Posted April 9, 2006 Author Share Posted April 9, 2006 $175!!! Dang! Yeah, I'm pretty dissapointed. We'll have redone the engine, tranny, brakes, suspension, windshield, and tires once this thing's on the road. Lol, there goes the thought of getting a truck for cheap. Is going used an okay path for an engine? My dad said he'd be willing to buy me a long block (about $1200 from Shucks, our only quote yet), but that would definitely not be the prefered route. car-part.com didn't have anything, but thank you for the link. Link to comment Share on other sites More sharing options...
Eagle Posted April 9, 2006 Share Posted April 9, 2006 Used is an okay way to go for an older vehicle. Jeep used the 2.5L engine in the Wranglers right up through 2003 or 2004, in the Cherokee through 2000, and also Chrysler used it in the Dakota pickups for several years, so you can search other vehicles for the same engine. The throttle body injection was used by Jeep from 1986 thru 1990 only, but the base engine was the same right to the end. If you buy a newer one, use it as a long block and put on your manifolds to keep the same injection. The newer multi-port is more powerful, but as noted then you would have to rewire the entire vehicle. You'll have to use your old flex plate and CPS, too. The newer Mopar ECU/injection/ignition uses a different type of CPS that's not compatible with your Renix electrical system, and the newer flex plate won't trigger your old CPS. Link to comment Share on other sites More sharing options...
feerocknok Posted April 9, 2006 Author Share Posted April 9, 2006 Eagle, I was looking up more information on it, and found this on the Jeeptech site. http://www.jeeptech.com/engine/amc150.html If I go junkyarding and find a 2.5 from an XJ, TJ, or YJ, with multi-port fuel injection, will the head match my TBI intake? Link to comment Share on other sites More sharing options...
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