P38A [P38] Common coolant leak locations

blue_cheese · Wednesday at 21:00

Mark Piercy said:
You did put the o-rings onto the pipes didn't you before fitting?

I did! They're on there somewhere, 11 quid from the main dealer

Grrrrrr said:
You can magnetise your screwdriver tip with a magnet!

I tried this with a fridge magnet, but I think it was too weak, the magnetisation was pathetic. Think I'll make a trip to Screwfix

Grrrrrr · Wednesday at 21:05

blue_cheese said:
I did! They're on there somewhere, 11 quid from the main dealer

I tried this with a fridge magnet, but I think it was too weak, the magnetisation was pathetic. Think I'll make a trip to Screwfix

Got a speaker anywhere?

Mark Piercy · Wednesday at 21:46

blue_cheese said:
I did! They're on there somewhere, 11 quid from the main dealer

I tried this with a fridge magnet, but I think it was too weak, the magnetisation was pathetic. Think I'll make a trip to Screwfix

Is there anything to lube the
o-rings, they are very resistant pushed in dry... Nod nod

blue_cheese · 2025-07-10T00:45:57+0100

Mark Piercy said:
Is there anything to lube the
o-rings, they are very resistant pushed in dry... Nod nod

I have copper grease, or is silicon better?
Also, are the O rings supposed to fit snug in to the matrix? Right now the pipes slot in but they don't go in much and have little resistance

Mark Piercy · 2025-07-10T06:22:34+0100

Not copper grease my mate and only if its silicon grease not sealer!

, you don't have any other grease to wet the oring outer surface which will allow them to slide in while fitted on the pipe end?

Datatek · 2025-07-10T07:51:50+0100

blue_cheese said:
I pulled the pipes + clamp out to take the pic, that's why it's not sitting right.
Do the flanges on the pipes sit on top of the inlet surface? Or do they go further in?

Someone has been and butchered the threads in it too.
Made 10x harder by the fact that I don't have a magnetic screwdriver! Sod keeps falling off.

I'll try again in the morning, thanks for your advice

Replace the screw with a socket head screw. There are recesses into which the O rings go.

Datatek · 2025-07-10T07:53:04+0100

blue_cheese said:
I have copper grease, or is silicon better?
Also, are the O rings supposed to fit snug in to the matrix? Right now the pipes slot in but they don't go in much and have little resistance

Silicone grease not Coppaslip. The pipes do not go in far and I do not remember any resistance.

Datatek · 2025-07-10T07:54:41+0100

Mark Piercy said:
Is there anything to lube the
o-rings, they are very resistant pushed in dry... Nod nod

Washing up liquid as a last resort.

Mark Piercy · 2025-07-10T08:17:38+0100

Datatek said:
Washing up liquid as a last resort.

Ooh, that's a good one

blue_cheese · 2025-07-10T20:27:13+0100

Back again.

Greased up the O rings but still no luck with the securing bracket.

Does the bracket slot in to place first before tightening? Right now it's loose and I'm having to push it up with my hands when trying to screw it on. I've pushed and riddled with it but cannot find an orientation where it tighents down properly:

kermit_rr · 2025-07-10T20:30:30+0100

Isn't that right?

blue_cheese · 2025-07-10T20:38:35+0100

Quick update:

Managed to screw it down, but I'm not convinced it's right:

See those two little teeth on the edge of the bracket? Top one doesn't seem to be making contact with the matrix, and the bottom one is on top of the inlet instead of reaching over it.

(This is compared to the pics on Paul's heater core replacement page)

Mark Piercy · 2025-07-10T22:13:22+0100

As long as the collars on each pipe sit against the black plastic they are are home. The aluminum collar should be sat equally across the pipes in relation to the black plastic receiver

Mark Piercy · 2025-07-10T22:15:01+0100

blue_cheese said:
Quick update:

Managed to screw it down, but I'm not convinced it's right:

View attachment 345091

See those two little teeth on the edge of the bracket? Top one doesn't seem to be making contact with the matrix, and the bottom one is on top of the inlet instead of reaching over it.

(This is compared to the pics on Paul's heater core replacement page)

Maybe loosen it and faf with it a little. The proof will be when you warm the engine and check your work

Are you sure the o-rings are correct for the application?

blue_cheese · 2025-07-10T22:39:09+0100

Mark Piercy said:
Maybe loosen it and faf with it a little. The proof will be when you warm the engine and check your work
Are you sure the o-rings are correct for the application?

Ended up loosening it for now and leaving it for the evening. Wasn't happy with the way it was sitting.

I'm pretty sure the O rings are right, they're straight from the LR dealer, part number that was given previously in this thread.

Might replace the screw with something a bit more robust - anybody know what size fits? M5 x 20?

P38A [P38] Common coolant leak locations

blue_cheese

Well-Known Member

Grrrrrr

Technician, Bodgit & Scarper Ltd

Mark Piercy

Well fumbled member....

blue_cheese

Well-Known Member

Mark Piercy

Well fumbled member....

Datatek

Well-Known Member

Datatek

Well-Known Member

Datatek

Well-Known Member

Mark Piercy

Well fumbled member....

blue_cheese

Well-Known Member

kermit_rr

Very

blue_cheese

Well-Known Member

Mark Piercy

Well fumbled member....

Mark Piercy

Well fumbled member....

blue_cheese

Well-Known Member

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