Couple of updates on the car. Started looking it over and I noticed the right motor mount I assumed bad was actually a motor mount completely unbolted. 2 of the 3 bolts were not present and the there is one broke off in the block. Did a compression check on the 258. From front to back while motor was cold. 1-110 2-112 3-120 4-110 5-124 6-124. Let the motor warm up for about 10mins and checked again. 1&2 came up to 120, 4 didn't move stayed 110 psi. Looked around forums for the ideal compression range as I'm used to some higher numbers on the xj. Hard to tell whats right but the wiki shows that pre 83 was lower compression head.
Decided to pull in the 96 xj and check it over. First 5 cylinders ran 160 psi and #6 was 165. I have been looking over a few swaps, such as this (
http://amceaglesden.com/guide/Joshpit%27s_4.0_Swap_Article ) for my references. I like the idea of a more modern, less used engine for this project Eagle as it's got quite a drive ahead of it and it needs to be reliable.The increased HP, MPG's and availability of parts doesn't hurt either. The xj had a rebuilt motor put in 3 yrs ago and had 40k on it, at most I've put another 40 on it since installed.
Before tearing into everything, I decided to see whats available at the local u-pull-it. I ended up finding a 94 4.0ho xj with a manual trans. The harness is complete other than alternator and starter leads. Ended up taking the complete harness, ecm, pdc, coil, pickup, fuel rail, injectors, tb, sensors, ect.
Pics updated. 70$ out the door.
I guess the next few days consist of pulling out the motor in the the xj and overhauling the gaskets since I'm there; and acquiring the last few parts needed. Got to grab a 42RE flexplate, u-pull 20$ (wet,cold,muddy) or ~50 online. Water pump from a grand or wrangler to center mount the Eagles fan, not sure if I need the fan from the grand as well or if the Eagles will mount to the pump. Also plan to mount the cps in the Eagle TF998 Bell for sake of being cheap.
Gramps doesn't like idea too much, but I think he's mainly put off by the wiring. In the end I feel its going to be fun modernizing this cool car.