Good save Don!! I had no idea about that...heres an egg for saving me a hard lesson in the new future!
Also I was wondering...
1. can I get a 92' jeep 4.0 cam at a parts store or will I have to go find one in a yard.
2. What computer parts will I need to rob from the donor jeep, and where is it located on the jeep?
3. The water ports are differnt between the 4.2 and 4.0. ...I know theres something with packing peanuts and JB weld but im not sure exactly what I do with those. I want to be 100% sure before I start packing JB Weld into the head!!
Thanx
shane
1. yes, you should be able to get one through Autozone. If not, then a junkyard or Ebay is your next best bet. Either way, make sure you get the specs on the cam before purchase to make sure it is what you expect it to be instead of a Renix cam or something. ]
2. If you are sticking with an autotragic configuration, you'll probably want to swap over to the AW4, or expensive crank damper and sensor, or if you wish to keep the stock Eagle tranny, maybe someone here can chime in as to whether or not the bells are interchangeable, because if so, you can use an AW4 bell for the cps mount and keep your tranny without having to worry about wiring for an AW4. If manual, you'd either have to buy the crank damper from hesco or swap in an AX15. My AX15 and parts (clutch, flywheel) cost almost the same as what they now charge for the damper and sensor. Either way, you will need the entire engine wiring harness from the firewall plug out, including the leads that run to the transfer case and transmission. DO NOT CUT ANYTHING in the engine bay if you can help it. The engine computer is located on the driver side fender facing the engine bay, if I remember correctly. Either way, if you lift the hood, you will see it, it has a very large connector with a hex head bolt going through that connector. The computer will be bolted somewhere off to the side. You will need to grab all sensors that harness was connected to (except oil pres):
Cam sensor inside distributor. Grab whole distributor
coil (located exactly where mechanical fuel pump bolts up on 4.2)
crank sensor on bellhousing toward top, driver side
Throttlebody (IAC and TPS)
Fuel injectors (for a mockup, but stock jeep injectors flow too little, you should use 24lb/hr injectors)
two wire coolant temp sensor on thermostat housing (make sure you grab that too)
single wire coolant temp sensor toward rear of head (for gauge)
MAP sensor, bolted to bulkhead above valvecover
IAT (intake air temp) sensor located in intake manifold
O2 sensor (buy that new), would be located about 3-4" down from collector outlet, on exhaust pipe.
There's a certain sensor on the transfer case that's for automatics, I don't remember what it's called, but if you choose to go with an AW4, chances are you'll have to change to a newer t-case in order to have that sensor.
3. The only two holes you absolutely are not allowed to fill on the gasket side of the head are the two enlongated water jackets located directly at the rear of the head. The three triangular ports around each studbore are fine to fill, though you would only need to do the two closest to the edge. Technically, a 4.0 head gasket seals all jackets up except for those two at the rear of the head. The gasket covers over the rest of them. If you purchase a gasket then place it on the head, you'll see what I mean.
Topic: Ginger the 83 wagon (Read 85518 times)