Water pump seal replacement Formula

[Sir Sidney Ruffdiamond]

I want to replace the seals in my water pump on my Formula - trying to work out if I can do this by just taking the water pump outer casting off - or have I got to take the whole lhs casing off - drain the oil , remove the PK rotor , gear linkage etc - there is a coolant leak from the leak off port on the outside of the water pump casting

 

[alan james]

Adam, Speaking from experience I believe you have to take the whole lot off to gain access to the inner and outer seals.
Alan.

 

[Sir Sidney Ruffdiamond]

Adam, Speaking from experience I believe you have to take the whole lot off to gain access to the inner and outer seals.
Alan.

Thanks Alan sadly yes which is a bit more of a pain in the arse - I have the seals but not the casing gasket

 

[Sir Sidney Ruffdiamond]

Has anyone got the tool that can undo the water pump impeller ?

 

[arancia]

see my response in Zanelist

 

[Sir Sidney Ruffdiamond]

see my response in Zanelist

Sorted - took the whole casing off - there a circlip behind

 

[The Sock]

That circlip looks completely cattled..

 

[Sir Sidney Ruffdiamond]

That circlip looks completely cattled..

Mmm you could be right need to find one in Uk - bearings and seals can be got - need to get the vernier out

 

[Paul Marx]

Mmm you could be right need to find one in Uk - bearings and seals can be got - need to get the vernier out

All very standard stuff.
For the circlips, buy a box of assorted sizes, it'll last you a lifetime.

I've done that along with a box of Woodruff keys.

What are those shiny marks on the shaft?

Paul

 

[Andy]

Where the seals run I imagine. Which makes me wonder why they used oil seals instead of a carbon/ceramic pump seal for the water side. Is that normal? I haven’t seen that before.

 

[Vince]

I wish I could remember the details of the incident with the local here and his Zane water pump seal. At least I can remember his name, it is Bobby C. From what I can, his seal went and the water mixed with the oil, and maybe the engine locked up, spitting him off the bike. All very ugly at the time and pretty much destroying the bike. From memory, he then moved to Queensland.

 

[Sir Sidney Ruffdiamond]

There are two seals - one protects the first bearing from the water - then there is a void that has the vent hole in it which is where the fluid appears if the seal has failed - the second seal protects the second bearing I guess although I can’t quite remember which way round it goes.