Bottom Water Rail O ring Size

[spyder_resto]

Hi Everyone
Quick question. Do you know what the size of the O ring for the bottom rail is please? PLanning to change water pump and wanted to change that at the same time.
Many thanks in advance
2.0 Beta Spyder - 1979
Si

[SanRemo78]

I think it's a simple gasket that should come with the water pump.

[spyder_resto]

I have the gasket that comes with the Water pump. Haynes manual states that there is an O ring that should be replaced when you reconnect the lower water rail to the water pump.
It was this O ring size that I was after.
Thanks
Si

[Nigel]

Indeed there is an O ring. I did mine some 4 years ago and I think the pump
I bought had the ring included.

I suggest you get a box of assorted rings. You'll more than likely find
a match.
Or disassemble first and measure.

Nigel

[smithymc]

Or pm me - I've got some (could only buy a bag of rings from the engineering supplies place) from when I did mine.

Happy to pop a couple in the post.

Mark

[spyder_resto]

Hi Mark,
Much appreciated.
I have a set of various O rings and hoping one of those will do the job. dismantling tomorrow and if stuck will pm you.
Thank you
Si