How to Tell If Oil Cooler Sandwich Plate Is Thermostatic?

Tractionless · 02-02-2018, 07:39 PM

Is there a physical marking?

I bought a used unit from a member who stated it was thermostatic. Upon starting the car for the first time after install I can immediately feel the fittings on the oil cooler as well as the core heating. The oil temp. gauge hadn't even left the bottom yet!

Thanks for any help you can lend.

SouthArk370Z · 02-02-2018, 07:42 PM

Few, if any, thermo-plates are positive shut-off - there will always be a little flow through the cooler.

Tractionless · 02-02-2018, 08:16 PM

Quote:

Originally Posted by SouthArk370Z

Few, if any, thermo-plates are positive shut-off - there will always be a little flow through the cooler.

I sure hope that's the case. Thanks for the speedy response. Still in for other's input.

SouthArk370Z · 02-02-2018, 09:52 PM

Mishimoto Thermostatic Sandwich Plate, Gold

Rusty · 02-02-2018, 11:31 PM

All thermostatic plates flow oil when closed. The reason behind it is that the cooler has some oil flow at all times. This warms the oil in the cooler, so that when the plate opens up. The oil system is not shocked with cold oil.

Buzzkill247 · 02-13-2018, 10:30 PM

Quote:

Originally Posted by Tractionless

Is there a physical marking?

I bought a used unit from a member who stated it was thermostatic. Upon starting the car for the first time after install I can immediately feel the fittings on the oil cooler as well as the core heating. The oil temp. gauge hadn't even left the bottom yet!

Thanks for any help you can lend.

Plates with thermostatic have an extra "nub" on the backside with the thermostat valve is encased.
Plates without have a rounded back and just the input/output ports

As mentioned above, ALL thermostatic plates allow around 10% flow at all times to prevent air locking and cold shock in the rad.

Anything north of the Mason-Dixon line really should be using thermo plate. below that, not really needed (for all 3 days of the year it gets actually cold), just don't drive like a moron (keep throttle on roll and below 4k shitfting) until you hit at least 140 temp - and if you are driving before minimum 1-2 min warm up time... sell your Z now or start saving for a new engine later lol

Tractionless · 02-17-2018, 02:47 PM

Quote:

Originally Posted by Buzzkill247

Plates with thermostatic have an extra "nub" on the backside with the thermostat valve is encased.
Plates without have a rounded back and just the input/output ports

As mentioned above, ALL thermostatic plates allow around 10% flow at all times to prevent air locking and cold shock in the rad.

Anything north of the Mason-Dixon line really should be using thermo plate. below that, not really needed (for all 3 days of the year it gets actually cold), just don't drive like a moron (keep throttle on roll and below 4k shitfting) until you hit at least 140 temp - and if you are driving before minimum 1-2 min warm up time... sell your Z now or start saving for a new engine later lol

Can you ID the 'nub" with a pic?

OhioYJ · 02-17-2018, 02:56 PM

First picture here on Fast Intentions Page <-- They have pictures of both side by side.

Tractionless · 02-17-2018, 03:28 PM

Quote:

Originally Posted by OhioYJ

First picture here on Fast Intentions Page <-- They have pictures of both side by side.

Going to have to get a look next time on jacks. Can't remember if that "nub" was there or not. Was installing front fog lights at the same time, lots going on that day.
Thank you for the link.

02-02-2018, 07:39 PM	#1 (permalink)
Tractionless A True Z Fanatic Join Date: Jan 2016 Location: Atlantic SE Posts: 1,323 Drives: '10 K23 ST 7AT Rep Power: 30525	How to Tell If Oil Cooler Sandwich Plate Is Thermostatic? Is there a physical marking? I bought a used unit from a member who stated it was thermostatic. Upon starting the car for the first time after install I can immediately feel the fittings on the oil cooler as well as the core heating. The oil temp. gauge hadn't even left the bottom yet! Thanks for any help you can lend. __________________ Toys Not Tots

02-02-2018, 07:42 PM	#2 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	Few, if any, thermo-plates are positive shut-off - there will always be a little flow through the cooler. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

02-02-2018, 09:52 PM	#4 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	Mishimoto Thermostatic Sandwich Plate, Gold __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

02-02-2018, 11:31 PM	#5 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,184 Drives: 2011 Nismo GM 6M Rep Power: 2684437	All thermostatic plates flow oil when closed. The reason behind it is that the cooler has some oil flow at all times. This warms the oil in the cooler, so that when the plate opens up. The oil system is not shocked with cold oil. Tractionless likes this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

02-17-2018, 02:56 PM	#8 (permalink)
OhioYJ Enthusiast Member Join Date: Nov 2016 Location: Ohio Posts: 261 Drives: 2016 370Z Rep Power: 953	First picture here on Fast Intentions Page <-- They have pictures of both side by side. Tractionless and Buzzkill247 like this.

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