Hi All,

I’ve had a slowish coolant leak where the juice can be seen in the vee and dribbling down the bellhousing at the back. I changed the oil cooler and the o-ring for the coolant pipe which feeds it but I still seem to have the same leak. Is there anything else in at area I should be looking at?

4.4sdv8 by the way

Thanks

Hi Andy

I’ve got the same issue and just replaced the cooler etc. 90% finished.

There’s two coolant pipes going into the cooler, did you change the one on the rhs?

See photo

Click image to enlarge

I changed the o-ring in the fitting. It was very flattened and starting to crack

Hi Andy

Of course the rear pipe is oil not coolant 🤦

I’m now doubting my own fix. I was able to see coolant on the lhs of the cooler in the V with a camera. However, now I think about it, the pipe is on the rhs so where did the water come from to get to the lhs?

I’ll finish putting it back together and cross my fingers.

the egr coolant pipe runs on the lhs under the egr pipe that go to the doughnut

Thanks 👍 this is all new to me, what’s the doughnut? Intake?

big black intake sitting on top of the engine

👍😀

I've had similar, and it was caused by the heater pipes joining the small plastic manifold next to the oil cooler.

I changed the heater pipes and the manifold.

Chris. L405 - 4.4SDV8 Vogue
P38 - 4.6V8 HSE
Land Rover series IIA V8

My leak was from flattened o-rings that are in the pipes at the front of the V around the thermostat area. The coolant dripped from the connection along the V and down the back of the bell housing.

https://www.fullfatrr.com/forum/topic66813.html V8 or else ...

Sorry Andy, I didn’t mean to hijack your thread. Just thought it useful to keep similar issues in the same place.

fisha wrote:

My leak was from flattened o-rings that are in the pipes at the front of the V around the thermostat area. The coolant dripped from the connection along the V and down the back of the bell housing.

https://www.fullfatrr.com/forum/topic66813.html

The originals aren't round, they are a flat ring. I used 45 x 3.5 Viton 75 but very recently took the opportunity to replace both hoses along with all other hoses in the V as the radiator had developed a leak.

A cheap pressure test kit can be bought on Ebay or Amazon... Takes the guesswork out of the equation...

Simply buy a universal kit, attach the hand pump and pressurise the system. Then inspect for leaks... The quicker the pressure drops, the bigger the leak! Simples...