1987Comanche Posted November 27, 2012 Author Share Posted November 27, 2012 This engine was horribly neglected for most of it's life. Based on the rust in the cylinder walls I think she was parked for an extended period of time before being resurrected (I bought her with electrical problems). It's amazing that I got 20K out of this engine. I didn't see anything in the cylinder walls that explains piston #1: Check out the rust: The ridge was pretty bad as well: Good and bad rod end caps side by side: My old 4.0 off to it's new life as a coffee table! Link to comment Share on other sites More sharing options...
1987Comanche Posted December 2, 2012 Author Share Posted December 2, 2012 I stripped the cylinder head this week and scrapped it. It was rebuildable but would have needed a lot of work: Also picked up a cool piece from a friend. It's a NOS Mopar MJ/XJ front end cover. I'll put the hood protector on after I find a nice hood at the jy: Link to comment Share on other sites More sharing options...
1987Comanche Posted December 16, 2012 Author Share Posted December 16, 2012 It looks like my MJ is turning into the never ending project. Reman engine #1 is defective. At 282 miles the cam bearings started to self-destruct. I pulled reman engine #1 back out and swapped it for reman engine #2. I did, however, get the store to deliver the new engine to my house (no MJ, no way to pick it up).... Link to comment Share on other sites More sharing options...
1987Comanche Posted December 16, 2012 Author Share Posted December 16, 2012 Pulled reman motor #1 yesterday: Maura waiting on reman engine #2 Link to comment Share on other sites More sharing options...
92tanMJ Posted December 16, 2012 Share Posted December 16, 2012 I think Maura just wants a 98+ swap done in her! :yes: Link to comment Share on other sites More sharing options...
flint54 Posted December 17, 2012 Share Posted December 17, 2012 Please warn us - who's reman engine was it? Something like that at 282 miles would likely tempt me to request a refund, and shop somewhere else. Link to comment Share on other sites More sharing options...
1987Comanche Posted December 17, 2012 Author Share Posted December 17, 2012 I think Maura just wants a 98+ swap done in her! :yes: She probably does. I thought she'd be happy with a new engine, trans conversion to external slave, and perhaps a new hood... It was an ATK engine. They supply reman engines to all the chains (I confirmed Advance, Auto Zone, O'Reilly, Pep Boys, Carquest, & NAPA) so the only way around them is Jasper or to rebuild a core locally. The parts store is working with me thus far...they agreed to pick up 1/2 the cost of the gaskets, etc that I need to do this project again. After engine #2 is in and runs I'll have to go after ATK for labor. Link to comment Share on other sites More sharing options...
1987Comanche Posted December 23, 2012 Author Share Posted December 23, 2012 Finished building up reman engine #2 and put her in yesterday. I ended up having to pull the balancer so the clutch would clear the input shaft. It's in and I have a fair amount of the accessories bolted back on. Hopefully they did a better job this engine than the last POS... Link to comment Share on other sites More sharing options...
1987Comanche Posted December 24, 2012 Author Share Posted December 24, 2012 Started engine #2 first thing this morning and broke in the cam. Seems to run ok other than the rear main leaking like a sieve. Guess that will be my after Xmas project... Link to comment Share on other sites More sharing options...
collkid Posted November 17, 2013 Share Posted November 17, 2013 Wow. So replacing engines not always simple... Link to comment Share on other sites More sharing options...
1987Comanche Posted November 17, 2013 Author Share Posted November 17, 2013 Unfortunately no. Even a year later the scab that was that POS ATK engine still hurts. If I had to do it again I'd find a good jy motor or have it rebuilt locally. Hopefully engine #2 held up better. Biotex owns Maura now so perhaps he can chime in with a health/mileage update. Link to comment Share on other sites More sharing options...
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