Engine Temperature gauge?
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Laughing Gas
Joined: Aug 2007
Posts: 1,132
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From: Baldwin, ND
Engine Temperature gauge?
I want to install a coolant temperature gauge to verify my coolant is running hot.
What do I need to replace on my system and what recommendations do you guys have?
Do I need to replace the sensor in the block? Is it a universal part or specific to the IDI?
Any other suggestions would be great.
Thanks
Thad
What do I need to replace on my system and what recommendations do you guys have?
Do I need to replace the sensor in the block? Is it a universal part or specific to the IDI?
Any other suggestions would be great.
Thanks
Thad
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Laughing Gas
Joined: Aug 2007
Posts: 1,132
Likes: 0
From: Baldwin, ND
Well, I ended up putting it in the Engine Temp Light spot. I have never even seen the light come on even with the temps in the "L" range of NORMAL.
I just ran it on the highway at 70 mph (A/C on) and got all the way up to the "A" in Normal and that corresponded with 220F on the gauge. Between the R and M was right at 200F. It ran most of the way right in the middle of the M which was about 210F -215F.
Thad
I just ran it on the highway at 70 mph (A/C on) and got all the way up to the "A" in Normal and that corresponded with 220F on the gauge. Between the R and M was right at 200F. It ran most of the way right in the middle of the M which was about 210F -215F.
Thad
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Laughing Gas
Joined: Aug 2007
Posts: 1,132
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From: Baldwin, ND
Dave
Really? It seems to me that is super hot.
When I was pulling my Jeep and a loaded pickup bed of stuff, I got up around the L in NORMAL and it made me super nervous.
Whats the best way to cool it down when its running that hot? Most guys say that they downshift a gear but when I do that it gets hotter. I would think it would help?
Thanks
Thad
Really? It seems to me that is super hot.
When I was pulling my Jeep and a loaded pickup bed of stuff, I got up around the L in NORMAL and it made me super nervous.
Whats the best way to cool it down when its running that hot? Most guys say that they downshift a gear but when I do that it gets hotter. I would think it would help?
Thanks
Thad
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Laughing Gas
Joined: Aug 2007
Posts: 1,132
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From: Baldwin, ND
I havent posted here but just flushed it and replaced the fan clutch. Although, I dont think the fan clutch is locking up as it should.
I am going to try the card board test this week if I have time.
I am going to try the card board test this week if I have time.
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Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
If I stand on the throttle up some of the local hills on the interstate at 70 MPH, 235 to 240 is what I see for temps with my gauge in the same location as yours.
When you think about it 220 is only 25 degrees more that what it takes to open the thermostat or minimum operating temp.
237 at the top radiator hose is within spec for a normal temp.
When you think about it 220 is only 25 degrees more that what it takes to open the thermostat or minimum operating temp.
237 at the top radiator hose is within spec for a normal temp.
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Laughing Gas
Joined: Aug 2007
Posts: 1,132
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From: Baldwin, ND
Dave
Is this experience talking or is this info from a manual.
That kindo of heat just makes me uneasy. I usually get out of the throttle when its over what I know know is 215F. I just cant think that an empty truck could put out that kind of heat.
THad
Is this experience talking or is this info from a manual.
That kindo of heat just makes me uneasy. I usually get out of the throttle when its over what I know know is 215F. I just cant think that an empty truck could put out that kind of heat.
THad
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
From everyday driving.
It takes a good grade on a warm day for me to hit 235, but it has been there many times.
The test proceedure for the fan clutch also gives 237 as the upper radiator tank normal high end temp.
With a new fan clutch that engaged at a bit lower temp, I am sure that temp would be lower.
But like I said earlier when you start pulling large loads with the oil cooling jets, the turbo plus working the engine, the oil does get hot fast and does dump a lot of heat through the oil cooler into the coolant.
If 220 makes you nervous, you don't want an engine like mine.
When I have a load on, I can hit 215 merging with traffic speed on an interstate entrance ramp when I stand on the throttle.
It takes a good grade on a warm day for me to hit 235, but it has been there many times.
The test proceedure for the fan clutch also gives 237 as the upper radiator tank normal high end temp.
With a new fan clutch that engaged at a bit lower temp, I am sure that temp would be lower.
But like I said earlier when you start pulling large loads with the oil cooling jets, the turbo plus working the engine, the oil does get hot fast and does dump a lot of heat through the oil cooler into the coolant.
If 220 makes you nervous, you don't want an engine like mine.
When I have a load on, I can hit 215 merging with traffic speed on an interstate entrance ramp when I stand on the throttle.
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Laughing Gas
Joined: Aug 2007
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From: Baldwin, ND
Alright.....I just dont like that it gets hot and seems hard to cool down....I really need to check the new fan clutch and get a new radiator....
For a good rule of thumb, what temp should I keep it below?
For a good rule of thumb, what temp should I keep it below?
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
All of my cooling parts are 3.5 years old at most, radiator, hoses, water pump, thermostat and heater core.
Fan clutch is 1986 model, still works fine but the lockup temp is a bit higher than it should be.
Less drag on the engine is how I look at it.
Once I reach operating temp, unless it is close to zero my minimum temp is 195, same as the thermostat opening temp.
If I have been running hard, it idles until the engine temp comes down before I shut it off.
Coolant temp 195, EGT under 300 degrees is where I shut down the engine.
Driving, anything under 240 is good for me.
Fan clutch is 1986 model, still works fine but the lockup temp is a bit higher than it should be.
Less drag on the engine is how I look at it.
Once I reach operating temp, unless it is close to zero my minimum temp is 195, same as the thermostat opening temp.
If I have been running hard, it idles until the engine temp comes down before I shut it off.
Coolant temp 195, EGT under 300 degrees is where I shut down the engine.
Driving, anything under 240 is good for me.
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