Anyone ever try a Sankei oil pressure sender?
Thread Starter
Registered User
Joined: May 2014
Posts: 137
From: Texas
Anyone ever try a Sankei oil pressure sender?
Found some on ebay for $30. Very tempted but wanted to know if anyone here has tried one.
http://www.ebay.com/itm/New-Sankei-Oil-Pressure-Switch-25070-21P00-/361050595272?pt=Motors_Car_Truck_Parts_Accessories&hash=item54104adfc8&vxp=mtr
http://www.ebay.com/itm/New-Sankei-Oil-Pressure-Switch-25070-21P00-/361050595272?pt=Motors_Car_Truck_Parts_Accessories&hash=item54104adfc8&vxp=mtr
Registered User
Joined: Aug 2013
Posts: 1,103
iwithnell, sounds good. A Z31 with no work to do is boring! So, include our Z31 guys in your work and post your issues here as you find them. Start a new thread or two and be sure to include photos. They bring us right to your Z and make it easier to help.
Your Z will return the favors for all the work you put into it. Z31s are like magic.
Your Z will return the favors for all the work you put into it. Z31s are like magic.
Registered User
Joined: Jun 2014
Posts: 52
iwithnell, sounds good. A Z31 with no work to do is boring! So, include our Z31 guys in your work and post your issues here as you find them. Start a new thread or two and be sure to include photos. They bring us right to youhowr Z and make it easier to help.
how you get the old one out?
Your Z will return the favors for all the work you put into it. Z31s are like magic.
how you get the old one out?
Your Z will return the favors for all the work you put into it. Z31s are like magic.
How you get the old one out?
Thread Starter
Registered User
Joined: May 2014
Posts: 137
From: Texas
With an open end wrench. or just grab it with your hand and turn CCW. Sorry guys i got the Sankei sender in but havent installed it yet. doing the timing belt and hoses now. Ill update when i get that done.
Let us know what it reads on the gauge when you're on the highway at, say, 3000 rpm... That will be info worth your cost and labor... 
Thread Starter
Registered User
Joined: May 2014
Posts: 137
From: Texas
Put it on finaly!!
I installed the Sankei sender, everything went ok. plug fit right on and even the rubber boot cliped into place! The pic shows the pressure with the engine cold on startup running for about 1 min. After i drive around for about 30 mins the needle falls below the 30psi notch about halfway from 0-30. what u guys think?
Registered User
Joined: Sep 2012
Posts: 233
From: Montana
Look in the FSM
Factory specs for oil pressure at specific RPMs are in the FSM. I would also be concerned that your temp gauge is still pegged on the low end of the scale after running the engine for 30 minutes.
Thread Starter
Registered User
Joined: May 2014
Posts: 137
From: Texas
ya, ill check the fsm to match some numbers. And ya the oil temp gauge is low because im using a sender unit from an 81 280zx turbo i found in the junkyard. screws in the oil pan correctly, but there is definitely a ohm resistance difference.
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