Thread: 4.0 v8 closed loop temperature

Originally Posted by DieSchnelleKafer

T as part of the modification i am adding an over-temp alarm (90 degree celc),

your alarm will be going off at 90degs constantly as the V8s run over that for emissions

Originally Posted by Pedro_The_Swift

The head LR engineering idiot decided that a non secured heat shrink liner would be good enough,, history has caused him to lose a lot of sleep since then,,[/SIZE][/COLOR][/FONT]

given that the block was used for 50 years and slipped liners only became the norm for th last 5, is it safe to say only the capacity increase is the issue?

Partly when bored from 3.5 to 3.9 but mainly heat (running temp) because D1 3.9 was generally safe but d2 4.0 (exactly the same Cc as 3.9 D1 had some liner shift).

Cheers

Originally Posted by Roverlord off road spares

your alarm will be going off at 90degs constantly as the V8s run over that for emissions

Please read the thread.

Originally Posted by ozscott

Partly when bored from 3.5 to 3.9 but mainly heat (running temp) because D1 3.9 was generally safe but d2 4.0 (exactly the same Cc as 3.9 D1 had some liner shift).

Cheers

Yes this is my line of thinking. so we will see, like i have said, i have caught the engine relatively early in its life span. so we will see the pros and cons of lowering the engine temp to 80 degrees celsius.