ole miner Posted August 23, 2008 Share Posted August 23, 2008 What engines are inter-changeable in 1986 Jeep Comanche, currently have a 2.8 v-6 and I need to replace. It keep getting hot. Link to comment Share on other sites More sharing options...
WahooSteeler Posted August 23, 2008 Share Posted August 23, 2008 2.5L 4cyls should be no problem I believe, and 4.0's with some modification, a little more or a little less depending if it is an early or late production 86. i'll let the real experts chime in though. Link to comment Share on other sites More sharing options...
LEAD_NOT_FOLLOW Posted August 23, 2008 Share Posted August 23, 2008 I'm not going to defend the 2.8L at all, but logic to me would say that it's easier/cheaper to probably fix the root of the problem with the cooling system than it would be to do a engine swap. Any motor swap you do will require more than just putting the motor in. You'll need to tackle the wiring harness as well as probably the tranny/tc. Than you'll most likely need a different rear d-shaft based on what motor/tranny combo you have. Link to comment Share on other sites More sharing options...
ole miner Posted October 2, 2008 Author Share Posted October 2, 2008 My 1986 Comanche (2.8L) keeps giving me problems. I can start and drive for about 10 miles and it will start banging, like every tappit and/or lifter is coming loose on the inside. I will let the thing cool down for just a few minutes that then I can take off again. It does not do it every time, but it has me scared to drive it. It currently is a good driveway ornament. Link to comment Share on other sites More sharing options...
86FUBAR Posted October 3, 2008 Share Posted October 3, 2008 What engines are inter-changeable in 1986 Jeep Comanche, currently have a 2.8 v-6 and I need to replace. It keep getting hot. 93 to 95 camaro 3.4 v6 is a direct bolt in replacement and is a big jump in performance and reliability. of course u could use the fuel injection that comes with the 3.4 and piggyback it on to ur curent wireing harnes but that may not be emisions legal , or u could ditch the problematic carb and upgrade to either a webber carb conversion , a holley 4v carb which will necessate the purchas of a edelbrock intake with the 4v top piece. those are just a few things that u could do u can also swap in a camaro 3800 and its super easy and all this other jaz but... :roll: . o and welcome to the club :cheers: and its nice to see someone else with the 2.8 (well it used to be a 2.8 :brows: ) mason Link to comment Share on other sites More sharing options...
CypherWulf Posted October 3, 2008 Share Posted October 3, 2008 He's not the only one who had the 2.8 inflicted on him! Thanks for the info, It'll come in usefull when I come up with the money and time to upgrade mine Link to comment Share on other sites More sharing options...
mvusse Posted October 3, 2008 Share Posted October 3, 2008 A Camaro 3.8 (3800) may not be the best choice. JeepcoMJ, how many transmissions did you go through with that engine? To much power for an AX4/AX5. Link to comment Share on other sites More sharing options...
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