How to identify a Tomei oil pump? - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

Listerofsmeg · 9th July 2009, 07:23 PM

This may seem a strange question, but im beginning to doubt if the oil pump that ive taken off the engine is in fact a Tomei pump. I know i bought a Tomei pump....but it does not have Tomei stamped on it anywhere. Is this normal?

It has Umeda stamped on it. It has always given great oil pressure when in the car, and is a fair bit heavier than a stocker pump which i had for comparison.

Does anyone have a pic of one so that i can see?

Floyd · 9th July 2009, 07:52 PM

Try this.

http://www.tomei-p.co.jp/rb26/images/RB-OilPump-194.jpg

Listerofsmeg · 9th July 2009, 08:00 PM

That looks like what i have, but i really need to see the other side...

Robbie@TDP · 9th July 2009, 08:07 PM

It says Umeda on it and you can adjust the pressure fom the outside.

Robbie

GT-R Glenn · 9th July 2009, 09:12 PM

The Tomei pump has 10 lobes on the inner gear, the factory nissan one has 11
I have a pcxc somewhere , Ill see if I can dig it out
Also the diameter of the nissan gear is about 65mm and the Tomei is about 80
They are obviously different if you can get two side by side.

R.I.P.S NZ · 9th July 2009, 09:26 PM

quickest way to tell is if you have the pressure releif valve cap on the outside of the pump by the altinator.

rb26r32 · 10th July 2009, 02:05 AM

this might help

Listerofsmeg · 10th July 2009, 05:46 AM

perfect, its identical to that

Thanks.

gs75 · 10th July 2009, 03:46 PM

That's put my mind at rest also.

I bought an engine that came with what was supposedly a Tomei oil pump and it said Umeda on the front of it so always worried me but now I know for sure.

9th July 2009, 07:23 PM	#1 (permalink)
Listerofsmeg Listerofsmeg has no status. New Users Join Date: Jul 2006 Location: Shefford, Beds Cars owned: R33 GTR Posts: 2,637	How to identify a Tomei oil pump? This may seem a strange question, but im beginning to doubt if the oil pump that ive taken off the engine is in fact a Tomei pump. I know i bought a Tomei pump....but it does not have Tomei stamped on it anywhere. Is this normal? It has Umeda stamped on it. It has always given great oil pressure when in the car, and is a fair bit heavier than a stocker pump which i had for comparison. Does anyone have a pic of one so that i can see?

9th July 2009, 09:12 PM	#5 (permalink)
GT-R Glenn GT-R Glenn has no status. GTR Register Member Join Date: Nov 2002 Location: Waiuku NZ Cars owned: Hayabusa B310 Nissan 1980-670 hp R32 GTR-R33 GTS-Rodeo Ute-GasGAs 125 ec-Toyota Corolla-09KTM 250 exc Posts: 2,105	The Tomei pump has 10 lobes on the inner gear, the factory nissan one has 11 I have a pcxc somewhere , Ill see if I can dig it out Also the diameter of the nissan gear is about 65mm and the Tomei is about 80 They are obviously different if you can get two side by side. Last edited by GT-R Glenn; 9th July 2009 at 09:14 PM..

9th July 2009, 09:26 PM	#6 (permalink)
R.I.P.S NZ R.I.P.S NZ is shootin for 6s with a RB GTR Register Member Join Date: May 2004 Location: Rotorua NZ Cars owned: R32 GTS4 Posts: 3,415	quickest way to tell is if you have the pressure releif valve cap on the outside of the pump by the altinator. __________________ RIPS Racing Worlds most powerfull RB30, 7.8 @ 177.4mph in 240z and 7.41 @ 175mph in FED Worlds quickest R34 street GTR, Worlds quickest 240z RIPS FED best of 7.41 @ 175mph, and current NZ record for DD/D with a 8.6 NZs quickest street car overall and NZs quickest full trim street GTR Mild to wild RB30s, 7,8,9,10 sec street/drag cars built to order, custom fabrication, worldwide shipping www.ripsracing.com e-mail rips@inspire.net.nz

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9th July 2009, 07:52 PM	#2 (permalink)
Floyd Floyd has no status. GTR Register Member Join Date: Dec 2004 Location: S-wales Cars owned: R32 GTR Vspec Posts: 337	Try this. http://www.tomei-p.co.jp/rb26/images/RB-OilPump-194.jpg

9th July 2009, 08:00 PM	#3 (permalink)
Listerofsmeg Listerofsmeg has no status. New Users Join Date: Jul 2006 Location: Shefford, Beds Cars owned: R33 GTR Posts: 2,637	That looks like what i have, but i really need to see the other side...

9th July 2009, 08:07 PM	#4 (permalink)
Robbie@TDP Robbie@TDP has no status. GTR Register Member Join Date: Jan 2005 Location: Wicklow, Ireland Cars owned: R32 GTR, R34 GTR Posts: 381	It says Umeda on it and you can adjust the pressure fom the outside. Robbie

10th July 2009, 02:05 AM	#7 (permalink)
rb26r32 rb26r32 has no status. GTR Register Member Join Date: Sep 2008 Posts: 200	this might help

10th July 2009, 05:46 AM	#8 (permalink)
Listerofsmeg Listerofsmeg has no status. New Users Join Date: Jul 2006 Location: Shefford, Beds Cars owned: R33 GTR Posts: 2,637	perfect, its identical to that Thanks.

10th July 2009, 03:46 PM	#9 (permalink)
gs75 gs75 has no status. GTR Register Member Join Date: Feb 2007 Location: kent Cars owned: R32 GTR Posts: 50	That's put my mind at rest also. I bought an engine that came with what was supposedly a Tomei oil pump and it said Umeda on the front of it so always worried me but now I know for sure.