Submariner Posted February 23, 2019 Posted February 23, 2019 I have acquired an 4.0 engine from an 89 cherokee. It has on the car about 178K miles. The one in my MJ now has 237K on it. I have started tearing down the engine in preparation to put it back together and into my 88 comanche. At first I was just going to change to rear main seal and call it good. but then it had a bent push rod in #3 cylinder so I figured I had better check the timing chain and lifters and before long I had the entire engine apart. I have some piston wear and the timeing chain will need to be replaced. so I might as well replace the cam and lifters to be on the safe side. I really don't wnat to do a complete overhaul of the engine but it is getting to look that way. I am going to have the block boiled out. and have the top resurfaced for the head to match. Where do I stop on this?
Dzimm Posted February 23, 2019 Posted February 23, 2019 If you are that far into it, you might as well do a full rebuild. Wouldn't cost much more. Perfect opportunity to build a stroker.
JMO413 Posted February 24, 2019 Posted February 24, 2019 At that point I would just spring for the full rebuild. You might as well your that far in. Then your good to good for another 200K.
Submariner Posted February 24, 2019 Author Posted February 24, 2019 Where is a good place to get engine parts? There is a wide variance in prices and I am sure of quality. Where you recommend to go?
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