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87 XJ 3.4 EFI AX5

makmadison

NAXJA Forum User
Location
Madison, WI USA
Asking $1500, but am willing to entertain offers. I don't have time to tinker with this anymore. I am the original owner. Pics available. Here is what was done to this in the last 12-18 months:


- 1995 GM/Camaro 3.4l TBI V6 with 1991 EFI.

From the BoneYard
- 2.8l XJ motor mount engine brackets, power steering pump, starter
- 1987 XJ flywheel zero balanced
- Mid '90s 4.0 XJ AC System;
- Mid '90s XJ gauage cluster; various XJ sendind units for fuel injection sensors;
- speedo cable from XJ with cruise control - to get the crank sensor info.
- Throttle cable and bracket.
- 1991 Berretta 3.1 5-spd Coil Packs, ignition module and ECU/PROM.
- Three relays and brackets, for fans and pair of fuel injectors.

New Parts
- XJ 2.8l Y-pipe for exhaust
- XJ 4.0l radiator (the one without the holding tank)
- 2 fans ('95 XJ)
- fuel pump ('87 XJ)
- Serpentine belt from a '89 Camaro w/3.1, AC, PS, no smog/air pump
- Clutch kit
- Rear main seal, since we were in there
- Cherokee 2.8l intake and exhaust manifolds.
- Heavy duty front coils. The 3.4 is a LOT heavier than the 2.5l.
- New hood with cowl, from www.sporttruckdirect.com. Had to madify hood supports and latch.

Custom or Mods:
- Heavily modified wiring harness from '91 Camaro 3.1l. Chiltons for EFI wiring diagram, Mitchell’s is/was better.
Try Helm Publications for wiring diagrams.
- Custom Air intake. Had to mod the air filter box. The new engine intake points towards the front.
- Custom radiator hoses, might find a stock part, not sure what make/models.
- Did a lot of soldering and shrink wrappring, to insure good contacts and water resistance
- Put both injection sides on one fuse. Put the ECU diagnostics plug under dash, drivers side.
- Exhaust - stock Y pipe and about 2-2.5" for the rest. Had to add a bracket on the tranny to hold pipe. Had to add some pipe to connect to tail pipe.
- Had to move transmission mount, for exhaust clearances.
- After dropping new engine into compartment, had to shift engine slightly to passenger side, for under hood clearances.
- Removed 3.4l air pump/smog. Don't need it. Put in an idler pully. Found the '89 Camaro belt would work.
- Used the 3.4l oil pan, clearance was fine, didn’t have to add spacers to motor mounts.
- Used 3.4l manifold because of EGR
- Minor mod to the throttle cable, to connect properly to the 3.4l
- Due to clearance with the exhaust, suggest using the Valvoline VO-16 oil Filter, or equivalent.

Work Required:
- Need to replace the ball joints.
- Passenger side rear door needs work - hit black ice and took out a small pole.

Sugested equipment:
Need to put in a signal booster to get the tachometer to work. Kind of helps with the various sending units and the fuel injection.
 
Located in Madison, WI 53711
- AC does not work, needs to be charged/converted.
- Heater barely works. Might be how I have the heater hose connected from the 3.4.
- Tires have less than 10k miles. BF Goodrich All Terrains.
- Original engine had close to 150k miles. The 3.4 has about 70k miles. I've put on maybe 2k miles since November 2005.
 
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