water rail - 3b

[s2driveruk]

Can anyone confirm the o-ring part number for the 3b water rail? I seem to remeber qty is 3 but one of mine is torn or something as its leaking down the side of the block

I guess I should be thankful I found it now rather on the way to Le Mans next month

ta
david

[S2central.net]

I am 99% sure I have some here David. Let me check... and yes - a very timely find sir.

[saltinot]

N 0282034 is the number. per Audi the size it 15x2.5S. Three of those.

Just in case........The large triangle like gasket's number is 027 121 139 A.

[S2central.net]

Yes I have them here - all three unused N 028 203 4

You also need 027-121-139-A for the other joint

You can have my bits for free along with new bolts n washers if ye want them - been collecting dust in a box here for a long while.

[S2central.net]

Daaaaaaaam - pipped by Tom

[saltinot]

Sorry Paul....didn't mean to step on your toes!

[S2central.net]

No way - its just funny !

[saltinot]

That it is!

[s2driveruk]

great stuff - Thanks guys

Paul if you can drop them in the post that'd be great, I'll PM my addy

[S2central.net]

Sent before noon today... should be with you Saturday AM.

[s2driveruk]

you're a gent worked in the dark last night to get the IM out, fuel rail off etc so hopefully not too bad

[S2central.net]

You past the worst then...

I would use a squidge of blue hylomar gasket or similar as belt n braces for the o-rings

[s2driveruk]

good tip, I seem to remember they were a pig to seat properly when I did them last time when the engine was out.

[s2driveruk]

just to update...

Drained down the coolant and pulled out the radiator/ac unit to get best acces to clean up and also reach everything i needed.

Pulled out the rail and basically the 3 o-rings i used when i refurbed everything about 3years ago had gone brittle and broken causing the leak on the 3 entry points. From memory I think I used Halford's ones from a huge box of different sizes.

Now replaced with OEM ones (thanks Paul) and a fresh larger gasket on the centre entry point.

Gave the radiator and a/c condensor a blast with the hoover - amazing how much rubbish comes out the fins and bought some decent flush to see if i can remove any scale/calcium inside the radiator.

Now just need to refit everything and fill and flush.

[S2central.net]

It's a lot of time to get decent access in there - a right pita but looks like good progress.