I have a 99 XK8. The knocking in my engine has gotten worse, and I found about a quarter of a bearing shell in my oil pan. I think this lump is a gonner.

I located another engine at a breaker, and it sounds very good. The difference is that this engine is in a 2000 XJ8.

I was wondering if the swap would be a simple plug and play, like just replacing the engine and plugging it into my XK8 harness plug, or is there more involved?

As I see it the sensors should be the same, between the two, or am I wrong? Please give me all the info you can. No info will be turned away.

I would not be able to pay the dealer, if they needed to flash anything, to get my beast going, so before I put down what is left of a loan consolidation, any information would be appreciated.

Would I be better off swapping all my sensors with the other engine?.......Thanks......Mike

 

Both engines are AJ27's and should be a direct swap. From injectors to flex plate should be plug n play. All that is just hardware but the sensors should all be compatible also. I would suggest that the ECM should stay with the car that brought it.

 

This is John from Minnesota, the person you bought the top from. I put a 2003 engine from a XJ8 into my 2001 XK8. No problems at all, everything hooked up. Plus the 2003 motor had the updated tensioners. Let me know if I can help you. Take care, John

 

have you puled the oil pan off yeat? if so did did get to the crank shaft ? you might get lucky with rods and main berrings. i would check before i comdemed your motor . that might be at least worth a look if you can get the pan off before you pull the motor. all the best and good luck Dan L

 

I pulled the pan, and a rod journal was scored.

The seventyfour thousand mile replacement engine should be here on Friday. It has a 120 day warranty, and is coming with the harness intact.

The more I got into the old engine, the more I kinda think it was put together with spare parts, and was junk when I bought it.......Now I will have an engine AND trans with less than 75,000 miles on them.....Thanks for your concern......Mike

 

ALL AJ27 Normally Aspirated XK8/XJ8 4.0 engines will work-plug&play (1999-2003 XJ8 and 1999-2002 XK8).

The problem with swapping an ECM is that 'Immobilization-setup' must be performed when the replacement ECM is introduced to a different CAN bus.

Leaving the original ECM is the preferred choice UNLESS you have the means to perform the configuration.

bob

 

sory to hear that the old motor was to far gone. hope the new motor checks out good . i would check the lower end and cam chains before you install. i wish i lived closer . love to help drop it in i know how much you enjoy your car . cant wait to hear how it ends up again good luck and all the best Dan L