Fitting N1 Oil Pump onto R32 RB26 block

[Morgs]

Hi all,

Time has come to fit an aftermarket oil pump on my earlier RB26 block, I've done a search and was not able to come up with a solid answer...

The Nissan N1 oil pump will not fit straight up I have read?

What modifications/parts are needed to fit this onto an otherwise standard crank/drive?

Kindly appreciate any help, thanks

[Ronin 09]

Morgs, I heard that the drive spline or something off the crank is smaller on the R32 oil pump... sorry I can't be any more specific

so yes therefore will not bolt up straight fit

[Ronin 09]

Just found this from thread titled GTR Crank Questions...

R33 and R34 cranks have the longer collar to run the oil pump as the R32 cranks had a thin one that can cause the pump to fail. You can add the collar to them.

I don't think there is any strength differences, if there are it's minor.

[itbmils]

Hey Morgs

I know you can get the std R32 crank nose modified for about $25.

I think it needs to be out of the engine tho

[Morgs]

Thanks for the replies guys;

Ronin, thats what I've heard, but unsure of which collar you are supposed to add to them?

itbmils, the crank is sitting on my bench

[Guest Variable]

Jun make one of the collars, part number:1013M-N001.

Taken from http://www.junauto.co.jp/products/cylinder...html?en#op-drvc

Pretty sure that Greenline or Nengun would be able to get one for you.

Hope that helps

[B0oStEr]

The Jun collar requires machining the nose of the crank.

[PHATR32]

isnt the only differance between the n1 pump and a standard pump is the pressure spring? the n1 pump has a harder spring in it to give it higher pressure?

steve

[R32-GTS]

The n1 pump fits on the earlier cranks. Put a jun crank collar on it morgs you tight bastard

[Sydneykid]

isnt the only differance between the n1 pump and a standard pump is the pressure spring? the n1 pump has a harder spring in it to give it higher pressure?

steve

Correct, just put an 8 psi stronger spring into a standard RB26 oil pump. Bingo it's an N1:cheers:

[Morgs]

JUN collar, sounds like the go

Just need to get someone to machine it, crank needs to be polished anyhow, SK or anyone do you know anyone in Sydney whose done this before?