Nismo N1 water pump & thermostat

[Durzel]

I've heard people talking about the following:

* Nismo water pump
* N1 water pump
* Nismo N1 water pump

Are these in fact one and the same thing? Does the N1 (Nismo or otherwise) water pump attach to the standard block "as is" ?

Can the Nismo thermostat be fitted easily by an average Joe like me?

Does anyone have the partcodes for the water pump(s) listed above?

Thanks

[Pikey]

Dunno about the water pump question, although I would think they're the same thing.

As for the thermostat, you have to take the radiator top hose off, then 3 bolts to undo the elbow, either a gasket or some liquid gasket to remove, swap thermostats and put it back together, top up radiator. Quite an easy job I would have thought, although Ive only done it on a bare block so Im not sure what's in the way

[Durzel]

Nice

[NISFAN]

well from what I understand Nismo were responsible for the N1 spec, so N1 water pump and Nismo is probably the same. (Unaware of a Nismo supplied water pump).

T/stat, easy to fit, 3 bolts as Pikes says. Just a pain as rad needs draining and topping up again, but I guess you'd be doing both together (water pump, which is not easy swap). Be sure to bleed it properly when done. Use liquid gasket on both water pump and t/stat.

[Durzel]

That does make sense. I can't find a "Nismo water pump" anywhere in Nismos catalogue which confused me (when fuel pump and oil pump are there).

I know the water pump is a cambelt/tensioner replace job (i.e. out of my depth) but its good to know the thermostat is easier to do.

[Toby Broom]

IMHO there isn't a Nismo water pump only an N1 version, the N1 pump has the part number 21010-24U27. The N1 pump has less blades than the std one, causing less cavatation in the water at high rev's

[Durzel]

Cheers