Recent Topics
Older fram ultra
by tblt44 - 10/19/19 08:42 PM
Best price on Colt 9MM pattern mags?
by GumbyJarvis - 10/19/19 08:20 PM
Using a trim router for cutting sheetrock
by JLawrence08648 - 10/19/19 08:09 PM
C&P of a Tough Guard w/50,000 miles to be posted soon
by MrQuackers - 10/19/19 08:04 PM
Chevy dealer, 7 free oil changes?
by Zacc - 10/19/19 07:34 PM
School me..1200 amp jumper
by Schmoe - 10/19/19 07:19 PM
YouTube Finish Test
by RayCJ - 10/19/19 07:09 PM
Overfilled, drained some, still too full?
by OCDriver - 10/19/19 06:16 PM
Wix made in Korea?
by JGmazda - 10/19/19 06:01 PM
Oil change interval question
by SkipCam - 10/19/19 05:49 PM
Remove Spark Plug Wires
by borgward - 10/19/19 04:53 PM
Pinion yoke loose, is the bearing ruined?
by Fsharp - 10/19/19 03:45 PM
Need tires for the mustang
by BeerCan - 10/19/19 03:24 PM
No sign of of oil sample at BStone :(
by 21Rouge - 10/19/19 02:45 PM
Carpet Shopping - Need Advice
by The Critic - 10/19/19 02:17 PM
Local Autozone clearance
by Soggydog - 10/19/19 02:05 PM
Two Fumoto valves
by otis24 - 10/19/19 01:17 PM
Going in the engine today!
by domer10 - 10/19/19 01:15 PM
GM 4WD rubbing/grinding after 4Lo
by HawkeyeScott - 10/19/19 12:52 PM
Choosing a new phone
by ram_man - 10/19/19 12:28 PM
Newest Members
Hallj49803, Tralever, Jhams, gmguy57, jamie24874
69612 Registered Users
Who's Online Now
80 registered members (4WD, bbhero, aquariuscsm, AdditiveOCD, 2015_PSD, ammolab, 7 invisible), 1,667 guests, and 24 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics296,195
Posts5,093,281
Members69,612
Most Online3,532
Jul 30th, 2019
Donate to BITOG
Print Thread
Hop To
Why such a low temp thermostat? #5137152 06/17/19 11:21 PM
Joined: Jun 2003
Posts: 19,612
C
Chris142 Online Content OP
OP Online Content
C
Joined: Jun 2003
Posts: 19,612
My tractor calls for a 150F thermostat. I had a 160 so I put that in. Wouldn't a 180 be a better choice? A 195F is too close to the boiling point IMO.


02 Wrangler Napa high milage 10w40
87 F250 Valvoline 15w40
07 fjcruiser Car lube plus 10w30
Z400 castrol T 10w40
Can am Maveric edge 5w40
57 case tractor Chevron sae30
Re: Why such a low temp thermostat? [Re: Chris142] #5137172 06/18/19 12:21 AM
Joined: Jan 2017
Posts: 3,209
M
maxdustington Offline
Offline
M
Joined: Jan 2017
Posts: 3,209
Pre-emissions and less airflow through the rad than an automobile?


97 GMC RCLB K2500LD L30/4L60
Re: Why such a low temp thermostat? [Re: Chris142] #5137210 06/18/19 04:44 AM
Joined: May 2015
Posts: 1,112
P
Popsy Offline
Offline
P
Joined: May 2015
Posts: 1,112
My old diesel with aluminium head, mostly pre-emission, got a 160° from factory, along with an oil cooler, same cars with gas engines got a regular 190°, I always thought it was to keep the oil temperature fairly low (the turbo is oil cooled), because oils of that era didn't like high heat much, but maybe it was a naive thought.


96 Barchetta, 300V 5W40 | Forfour 95, M1 0W40
Mazda 6 2.3, Castrol 0W30 | Colt Ralliart, 300V 5W40
Re: Why such a low temp thermostat? [Re: maxdustington] #5137244 06/18/19 05:59 AM
Joined: Sep 2016
Posts: 222
T
Tman220 Offline
Offline
T
Joined: Sep 2016
Posts: 222
Originally Posted by maxdustington
Pre-emissions and less airflow through the rad than an automobile?

Pre-emissions is the key. Has nothing to do with airflow, in fact this is one of those things a lot of people get confused about. Assuming equal airflow a radiator is far more efficient when filled with 200 degree coolant vs. 160 degree coolant. Far more temp differential.


2012 Regal GS Turbo PP 5w30 90k
1994 Camaro Z28 LT1 355 CI, 430 RWHP PP 5W30 165k
2005 GMC Sierra 1500 5.3 160k
2004 Civic LX M5 178k
2007 Camry 2.4 232k
2016 Victory Vegas
Re: Why such a low temp thermostat? [Re: maxdustington] #5137271 06/18/19 07:07 AM
Joined: Jun 2003
Posts: 19,612
C
Chris142 Online Content OP
OP Online Content
C
Joined: Jun 2003
Posts: 19,612
Originally Posted by maxdustington
Pre-emissions and less airflow through the rad than an automobile?

It has a solid mounted fan that blows like a hurricane.

Reason I bring this up is because the top end is pretty dirty. I assume from the oil not getting hot enough to evaporate the moisture. Also. No pcv system, just a vented cap.

I blocked part of the radiator last night and let it run about 185F for about an hour.


02 Wrangler Napa high milage 10w40
87 F250 Valvoline 15w40
07 fjcruiser Car lube plus 10w30
Z400 castrol T 10w40
Can am Maveric edge 5w40
57 case tractor Chevron sae30
Re: Why such a low temp thermostat? [Re: Chris142] #5137282 06/18/19 07:16 AM
Joined: Oct 2005
Posts: 4,650
K
Kruse Offline
Offline
K
Joined: Oct 2005
Posts: 4,650
First, your radiator is a non-pressurized system and, from the factory, was designed for water only. Back then, the tight-wad farmers didn't add antifreeze. If they did, it was alcohol-based, which had a low boiling point. During the cold winter in all places except California, the water was usually drained every night. Also, your gas tank sits very close to your engine. They didn't want the gas to vaporize because it was so close to the hot block.
A couple of weeks ago, I drove my Oliver 70 about 10 miles in 90° weather. (Google for a photo of an Oliver 70. From the factory, it had enclosed tin around the engine) Now gas is different than it was back in 1938 when it was built, but my tractor did experience vapor lock the final two miles of driving. Your 180° MIGHT work, unless your are plowing the back 40 in high temperatures.

Last edited by Kruse; 06/18/19 07:17 AM.
Re: Why such a low temp thermostat? [Re: Tman220] #5137292 06/18/19 07:42 AM
Joined: Jan 2013
Posts: 3,373
W
WyrTwister Offline
Offline
W
Joined: Jan 2013
Posts: 3,373
Originally Posted by Tman220
Originally Posted by maxdustington
Pre-emissions and less airflow through the rad than an automobile?

Pre-emissions is the key. Has nothing to do with airflow, in fact this is one of those things a lot of people get confused about. Assuming equal airflow a radiator is far more efficient when filled with 200 degree coolant vs. 160 degree coolant. Far more temp differential.


Yes , greater delta T . Assuming constant / consistent ambient temperature .


Wyr
God bless
Re: Why such a low temp thermostat? [Re: Chris142] #5137298 06/18/19 07:53 AM
Joined: Jan 2015
Posts: 1,364
R
ragtoplvr Offline
Offline
R
Joined: Jan 2015
Posts: 1,364
Your tractor was designed for that temperature thermostat. Going hotter is risky. Car engine operates at 10% load most of the time. When working a tractor engine is over 80% load, it is severe service. I had a old allis, I added a pvc system and oil vapor separator. The oil did stay cleaner. When mowing, it did get the oil hot enough to drive off the water, the catch can had to be drained every day. First day I must have drained a pint. Then it went down to about a ¼ cup.

Rod

Re: Why such a low temp thermostat? [Re: Kruse] #5137300 06/18/19 07:54 AM
Joined: Jun 2003
Posts: 19,612
C
Chris142 Online Content OP
OP Online Content
C
Joined: Jun 2003
Posts: 19,612
Originally Posted by Kruse
First, your radiator is a non-pressurized system and, from the factory, was designed for water only. Back then, the tight-wad farmers didn't add antifreeze. If they did, it was alcohol-based, which had a low boiling point. During the cold winter in all places except California, the water was usually drained every night. Also, your gas tank sits very close to your engine. They didn't want the gas to vaporize because it was so close to the hot block.
A couple of weeks ago, I drove my Oliver 70 about 10 miles in 90° weather. (Google for a photo of an Oliver 70. From the factory, it had enclosed tin around the engine) Now gas is different than it was back in 1938 when it was built, but my tractor did experience vapor lock the final two miles of driving. Your 180° MIGHT work, unless your are plowing the back 40 in high temperatures.

Actually it is pressurized! 4 psi! It is hot. 100+ is common.


02 Wrangler Napa high milage 10w40
87 F250 Valvoline 15w40
07 fjcruiser Car lube plus 10w30
Z400 castrol T 10w40
Can am Maveric edge 5w40
57 case tractor Chevron sae30
Re: Why such a low temp thermostat? [Re: Chris142] #5137304 06/18/19 08:03 AM
Joined: Jun 2013
Posts: 1,973
M
mattwithcats Offline
Offline
M
Joined: Jun 2013
Posts: 1,973
Thermosiphon cooling system?

No water pump, just physics moving hot water up, cold water down...


2009 Smart Pure
Pennzoil Platinum Euro 0W-40, Wix XP 51356 filter, 45 mpg...
185/55R15 General HP tires, "H" speed rated, 44 psi (300 kpa)
Re: Why such a low temp thermostat? [Re: mattwithcats] #5137316 06/18/19 08:27 AM
Joined: Dec 2016
Posts: 9,517
L
Linctex Offline
Offline
L
Joined: Dec 2016
Posts: 9,517
Originally Posted by mattwithcats
Thermosiphon cooling system?

No water pump, just physics moving hot water up, cold water down...


My 1949 Farmall "C" is Thermosiphon with a fan.

Later "Super C" engines got a water pump.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Why such a low temp thermostat? [Re: mattwithcats] #5137353 06/18/19 09:19 AM
Joined: Jun 2003
Posts: 19,612
C
Chris142 Online Content OP
OP Online Content
C
Joined: Jun 2003
Posts: 19,612
Originally Posted by mattwithcats
Thermosiphon cooling system?

No water pump, just physics moving hot water up, cold water down...

Its not that old LOL! It has a belt driven water pump.


02 Wrangler Napa high milage 10w40
87 F250 Valvoline 15w40
07 fjcruiser Car lube plus 10w30
Z400 castrol T 10w40
Can am Maveric edge 5w40
57 case tractor Chevron sae30
Re: Why such a low temp thermostat? [Re: Chris142] #5137482 06/18/19 12:10 PM
Joined: Oct 2017
Posts: 193
T
thastinger Offline
Offline
T
Joined: Oct 2017
Posts: 193
My 49 Farmall C doesn't have a water pump at all...but it has a helluva fan on it

My 68 JD 3020D rad was designed for water only or people would add alcohol to the water, alcohol evaporates at 173 degrees...hence the 150 thermo

Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™