Oil cooler thermostat

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kravdraa
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Oil cooler thermostat

Postby kravdraa » Wed Dec 08, 2010 5:47 am

I have a new oil cooler thermostate compliments of Yoda Jerry.
There is an arrow on it but I'm not sure which way the arrow should point when installed. Toward the ground or the sky?
Thanks in advance.
Eric
81 Long bed PuP 2.2 Diesel
Using Bio-D

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pup daddy
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Re: Oil cooler thermostat

Postby pup daddy » Wed Dec 08, 2010 8:00 am

Never heard of an oil cooler thermostat. Amazing what you learn on the pup site.
1985 Pup diesel 4x4 4spd SB (daily truck)
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puttputtinpup
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Re: Oil cooler thermostat

Postby puttputtinpup » Wed Dec 08, 2010 8:08 am

pup daddy wrote:Never heard of an oil cooler thermostat. Amazing what you learn on the pup site.

Follow the heater hose from the oil cooler to the top rear of the engine. The thermostat is mounted to a bracket on the head. Eric, I believe the arrow should point to the oil cooler.

kravdraa
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Re: Oil cooler thermostat

Postby kravdraa » Wed Dec 08, 2010 10:19 am

Pup Daddy,
Thank you!
Eric
81 Long bed PuP 2.2 Diesel
Using Bio-D

oil burner
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Re: Oil cooler thermostat

Postby oil burner » Mon Dec 27, 2010 10:04 am

I have a cooler thermostat too. Is the direction of the arrow confirmed. What about no arrow? Which side and way then?
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Re: Oil cooler thermostat

Postby oil burner » Thu Jan 27, 2011 12:18 pm

BUMP Anybody know?
Rebuilt to drive not decorate.

kravdraa
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Re: Oil cooler thermostat

Postby kravdraa » Thu Jan 27, 2011 12:32 pm

I'll take a look at mine this evening. I put it in witht he arrow facing down toward the oil coler per Jerry's instruction. I "think" there is a lip on the t-stat and maybe that will help position it correctly if you can't see an arrow on it.
Eric
81 Long bed PuP 2.2 Diesel
Using Bio-D

StevePT
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Re: Oil cooler thermostat

Postby StevePT » Sat Jan 29, 2011 1:30 am

You want the arrow to point up "towards the sky" as that arrow goes with the direction of the coolant flow. Pressurized coolant flows from the head, through the cooler past the thermostat device and back to the water pump.

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Re: Oil cooler thermostat

Postby JLEMOND » Sat Jan 29, 2011 9:46 am

StevePT wrote:You want the arrow to point up "towards the sky" as that arrow goes with the direction of the coolant flow. Pressurized coolant flows from the head, through the cooler past the thermostat device and back to the water pump.



THAT IS CORRECT THE ARROW SHOULD BE POINTING UP ,NOT TOWARDS THE COOLER , I HAD IT BACKWARDS , THANKS STEVE

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puttputtinpup
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Re: Oil cooler thermostat

Postby puttputtinpup » Sun Jan 30, 2011 5:34 am

Good information....I always thought that the coolant traveled from the heater core return T then into the oil cooler thermostat, then into the oil cooler, then to the engine head. I had it backwards..not too uncommon an occurrence :oops: :oops:
All I know is that I removed it years ago thinking it was restricting flow somehow to my heater core (which was an Advance Auto replacement...defective since new...froze to death for many Winters before I replaced it) Once I determined the device was an inline thermostat, not clogged check valve, I reinstalled it the same way it came off. I did check its operation by connecting a piece of scrap heater hose, dropping the thermostat into one of the wife's kitchen pots with boiling water, and blowing through it seeing if it opened up. It was fine, so I reinstalled it.