Hello
I have a 1995 Jaguar XJS 4.0 6 Cylinder. I am looking to get the Engine and Transmission cooler lines done. I would like to get some input as to book labor time. Also where would be the best place to source the lines. I was quoted 5.2 hours for the engine cooler lines and 5.5 hours for the transmission cooler lines. I feel that's a bit too much time. I appreciate some guidance.

 

Getting them “done”?

Are you replacing what you have?

Did a previous owner remove them?

 

Yes I am replacing what I have. I am the original owner of the car.

 

SymbolicMike,

By "Engine Cooler lines", do you mean the hoses & pipes going to the Engine Oil Cooler (rather than the Engine Coolant hoses)?

If so, you need to prepare yourself for the fact that in trying to disconnect the connections from the oil cooler, there is every chance that you will destroy the oil cooler. The dissimilar metals means that the threads on the cooler usually get destroyed if you try to undo these 29-year old pipes.

If that happens, I would seriously consider just completely removing the oil cooler and fitting the bypass kit at the filter housing. In fact, you might want to consider that anyway. Except in the really hottest of climates, the 4.0 XJS doesn't need the oil cooler. It wasn't even fitted on the 4.0 saloons.

Also, if you're doing the transmission cooler lines, I'd do a full powerflush of the transmission fluid first whilst the end of the oil lines is undone. It's a great time to do it properly.

Good luck

Paul

 

Hello Paul

Thank you for your reply. By Engine cooler lines yes indeed I mean the hoses and pipes going to the engine oil cooler. I live in California the weather does get hot so do you still recommend the bypass kit at the filter housing.

 

I’ve made the switch to my 96 XJS daily driver in the Washington DC market. We see heat, we see cold. Car has performed well without the cooler for years.

If you decide to install the bypass, it’s worth using Viton o-rings. I’m pretty sure if you search my posts with Viton, I’ll tell you what size they were. I ordered them from McMaster Carr.