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Discussion Starter · #1 ·
Anyone have any experience with these engines. I have an opportunity to buy a loaded 91 Jeep Cherokee 4X4, everything is like new, everything. The only problem is the engine, the first cylinder piston is broke - and put a slight scratch in the cylinder that a 20 over bore job will take care of. I want to rebuild the engine. I have only put a borla header on this engine which was quite similiar to the Z. So I know basically nothing about the engine, has anybody around here worked on one? I am looking for rebuild kits and basically any advice or insight, good web sights.

For what I can get this jeep for I could use it as a daily driver and winter beater instead of abusing my Z. I also know the complete history of the vehicle since it's my parents and I can get it dirt cheap.

Thanks
Matt
 

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BUY IT! These are GREAT machines! Especially for what you're gonna do with it. The I6 4.0 is one of the best motors to ever come out of Mopar. 190horse stock and can be increased very easily. They are great DD's or off roaders. I have an 85 with the AMC/GM 2.8 V6. I wish I had the 4.0. Those things are pretty much bullet proof. I would suggest you go to Jeepin.com to look for info. Also, Leon Rosser Jeep is a Jeep dealer/parts distributor. They have a site, too. A guy that's been specializing in XJ's (Cherokee's) forever is Rusty Megois. He has an internet business called www.rustysoffroad.com. I bought some tow hooks for my Jeep from him. He rebuilt an XJ just like the one you're describing for his son. I saw it (he lives a few miles from me).

I have a Haynes Manual that covers 91 and I have the FSM for 1985. If you have any questions, I'll see if either of those sources can help.

Good luck man!

E
 

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Discussion Starter · #3 ·
Wow, thanks BigE

I'll be checking out those sites, I really appriciate the help. I've been kinda suprised at how hard it is to find detailed info on the motor internals over the web. I've got a haynes or chiltons can't remeber which but I'm just starting to consider this project.

Matt
 

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junk that jeep 6 put in L28

save yourself some grief
 

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Re: junk that jeep 6 put in L28

I agree with bakachan, the only thing that jeep would be good for would be to take the fluids out of it, put it in your backyard upside down on its roof, and use it for a doghouse.
 

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Re: BigE

Well, I didn't think I'd have to say this, but no, this engine will not withstand an actual bullet. C'mon man, it's an expression! I've found several motors in bad shape that once they were rebuilt, they took everything that could be thrown at them. Since the Jeep in question is a 91, I'm assuming the engine is in the upper 100K mile range. That's impressive for any motor. What I was saying is that if he gets it and rebuilds it right, he can put that Jeep through snow banks, rivers, etc. and expect the motor to take it and beg for more. It's a great motor. Personally, I'm a V8 guy when comes to vehicles like this, but I'm just extremely impressed with the 4.0. It's a great motor and he can expect long life and a lot of use out of it if it is rebuilt properly.

E
 

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Re: junk that jeep 6 put in L28

Do you have any experience or facts to back that up? Please, do tell; why is this Jeep such a horrible thing?
 
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