Hey all.
I need help to get to the bottom of something coz it's driving me crazy.
My 95 xj lacks top end power.
I tow a small camper...around 8-900 kg and on the hwy at 100 on a slight incline I'm pretty much flat to the floor. And that just doesn't seem right for a 4.0. Especially since i just rebuilt it.
So. Some history.
Rebuilt the motor. 20 thou over. Bored, New pistons and rings, lifters, timing chain. Head and block planed. Valves reseated etc etc.
Fuel pressure good and holding. New filter. Injectors tested. Pressure reg good.
Newish coil...leads ...cap and distrubutor.
New radiator and not getting hot.
New 02 sensor and 2" exhaust.
New transmission (we dont talk about that!!!)
Diffs regeared to 4.10 for the 31's.
I'm at a loss.
Any ideas?