Just bought a 99 for 1k cause it had over heated and spun a bearing. I plan on swaping the motor out ofmy 93. Who knows of any issues I might run into? They are both 4.0 ho but didnt some 99s not have a distrubitor?

 

I know my 93 is obd 1 and the 99 is obd 2 but if I juct switch wverything over it shouldnt be an issue right? Also I keep reading other threads and seeing theres a difference in some motor mounts, is it just the brakets or are the holes in the block different?

 

This forum used to be so helpfull, wtf happened?

 

I think it would be a straight swap as long as it is not a Renix engine (which it's not since you said 1993). Only thing would be the electrics mostly since the engine is an OBDI. Coil packs are only 2000-2001. My 99 still has a distributor.

Also, is this AX15 or AW4?

 

Shod be ax 15, I ve never seen an awd xj

 

I meant is the transmission on your 1993 and on the 1999 Auto (AW4) or stick (AX15)?
Because if you are going from Auto to Stick or vice versa I am not sure if you need some extra parts to mate the engine.

 

Oic, both autos. My main concern is the motor mounts not that I know the igniotion is the same. I figure if I take them both down to long blocks it should work

 

Judging from past posts, you may run into a bunch of unforseen problems attempting this swap.

 

If you have a distributor then its a straight swap no issues! And if its the 93 then you get a better cam..well the early cams 87-95 hold more power up to redline vs the 96-01 cams..the 96-01 cams bring power on sooner and fall off sooner..87-95 bring it later and hold it to redline.
Either way if you got a distributor then its a straight swap. If not you'd have to swap heads! Or figure a way to make the coil on plug setup work with a older style head.

 

You should not be running into any issues. I have swapped out engines in both directions. 99-93 93-99 and so on. Take your time, pay attention to where things mount up and the rest is easy.

 

Why in gods name are the top two bellhousing bolts reverse torx?

 

those things suck! when i did my motor swap i put hex head bolts in there place. incase i have to take it out again.

 

I concur - straight swap

 

They are a nightmare to get off. Anyone k.ow of a easy way? No combination of extentions or knuckles is working

 

the way i got them out was a 2ft 3/8 extention a 3/8 swivel socket and a 3/8 impact. i was under my jeep and had my dad get the socket on the bolts from up top. came right out!