Overheat, HELP!

[Ken226]

I miss my 1989 D-150.

The D-150 is absolutely on my short list. It'll probably be my first project after I retire and get moved.

I'll buy an old junker and rebuild and repaint it. I may even go with a Gen3 Hemi and use an aftermarket EFI system.
Those kind of computers, i have no trouble with.

 

[Ken226]

Man us Canucks get screwed by Amazon.ca. The grill clips are $6.00 on Amazon.com,and $28.54 on Canuck Amazon.

https://www.amazon.ca/dp/B0CK21NXT3?ref=ppx_yo2ov_dt_b_fed_asin_title&tag=ramforum-20.

Thanks for the link to them Ken,even though i'm *****!ng about Amazon

Yea, Bezos is a tool.

His choice in a company logo wasn't accidental.

 

[EdGs]

Yea, Bezos is a tool.

His choice in a company logo wasn't accidental.

I never even thought about that, just about sprayed coffee on my keyboard.

Conpletely forgot about the rocket, too.....lol.

 

[Ken226]

 

[Wild one]

I thought Motorad owned Gates now.

 

[Sherman Bird]

I thought Motorad owned Gates now.

It's possible. I do not really much care who owns who. I've had problems with Gates products as well as others these last 7 years or so. I did a timing belt/ water pump job on an older Camry 2.2L engine. The water pump failed shortly after. Since then, I can get the Aisin brand kits, and have installed several dozen of those with ZERO problems... most recently on my 2004 RX330. Ditto for coolant hoses that Gates makes with the ends cut off non-perpendicular, and the reinforcement threads hanging out the ends, and molded slightly off, enough to make the Pope angry!

I have much much better luck with mostly O.E. But, I di admit, the O.E. dealers are VERY proud of these parts. The upper radiator hose on my Lexus was 75-ish dollars. OUCH! But worth the peace of mind, not to be stranded due to crappy parts!

 

[Ken226]

It's possible. I do not really much care who owns who. I've had problems with Gates products as well as others these last 7 years or so. I did a timing belt/ water pump job on an older Camry 2.2L engine. The water pump failed shortly after. Since then, I can get the Aisin brand kits, and have installed several dozen of those with ZERO problems... most recently on my 2004 RX330. Ditto for coolant hoses that Gates makes with the ends cut off non-perpendicular, and the reinforcement threads hanging out the ends, and molded slightly off, enough to make the Pope angry!

I have much much better luck with mostly O.E. But, I di admit, the O.E. dealers are VERY proud of these parts. The upper radiator hose on my Lexus was 75-ish dollars. OUCH! But worth the peace of mind, not to be stranded due to crappy parts!

I've noticed recently that Aisin makes a water pump for the Ram 5.7 Hemi. I wonder if that would be a good alternative to OEM, in a pinch? They seem to be priced in the same range as the AutoZone and Oreilly's pumps.





On a somewhat related side note, I just recently finished installing two new OEM Mopar water pumps on by mine and the wife's 5.7s. Both of which came with a new coolant temp sensor. The old sensors were all plastic, and the new ones are brass.

In both cases, after the install, the temp reading on the evic was different. Before the pump replacement, from a cold start the temp would climb up to 206, then when the thermostat opened it would drop to 194 and slowly oscillate between until finally settling on about 200.

Now, after the pump replacment, after a cold start it climbs to about 212, drops to 200, then oscillates up and down until finally settling on about 206. Overall, about a 6* f increase after the change.

Wondering if the change was due to the pump or sensor, I tested the sensors from my truck, old and new, with some boiling water. At 213* f water temp, the old plastic sensor reading was 695 ohms and the new brass sensor was 676 ohms.

So, the resistance difference between the old and the new sensor was 3%, exactly matching the 3% temp reading change on the evic.

I wonder which is more accurate?

 

[emjohn4]

I've noticed recently that Aisin makes a water pump for the Ram 5.7 Hemi. I wonder if that would be a good alternative to OEM, in a pinch? They seem to be priced in the same range as the AutoZone and Oreilly's pumps.





On a somewhat related side note, I just recently finished installing two new OEM Mopar water pumps on by mine and the wife's 5.7s. Both of which came with a new coolant temp sensor. The old sensors were all plastic, and the new ones are brass.

In both cases, after the install, the temp reading on the evic was different. Before the pump replacement, from a cold start the temp would climb up to 206, then when the thermostat opened it would drop to 194 and slowly oscillate between until finally settling on about 200.

Now, after the pump replacment, after a cold start it climbs to about 212, drops to 200, then oscillates up and down until finally settling on about 206. Overall, about a 6* f increase after the change.

Wondering if the change was due to the pump or sensor, I tested the sensors from my truck, old and new, with some boiling water. At 213* f water temp, the old plastic sensor reading was 695 ohms and the new brass sensor was 676 ohms.

So, the resistance difference between the old and the new sensor was 3%, exactly matching the 3% temp reading change on the evic.

I wonder which is more accurate?

Did you change the thermostat at the same time?

 

[Ken226]

Did you change the thermostat at the same time?

No. I kept the OEM thermostat, for now.

Edit to add: I drove to the store to pick up some booze, 30 minutes round trip, and when I got back I shot the black steel thermostat housing with my infrared thermometer. It matched the evic to less than 1°, so it looks like the new one is more accurate.

 

[EdGs]

It's possible. I do not really much care who owns who. I've had problems with Gates products as well as others these last 7 years or so. I did a timing belt/ water pump job on an older Camry 2.2L engine. The water pump failed shortly after. Since then, I can get the Aisin brand kits, and have installed several dozen of those with ZERO problems... most recently on my 2004 RX330. Ditto for coolant hoses that Gates makes with the ends cut off non-perpendicular, and the reinforcement threads hanging out the ends, and molded slightly off, enough to make the Pope angry!

I have much much better luck with mostly O.E. But, I di admit, the O.E. dealers are VERY proud of these parts. The upper radiator hose on my Lexus was 75-ish dollars. OUCH! But worth the peace of mind, not to be stranded due to crappy parts!

My Father-in-law always said that for critical parts, he always preferred OE, even though those parts were way more expensive. Peace of mind.

 

[EdGs]

Update:

I did not get a chance to continue with the truck last night, and my serpentine belt and grille clips are due to deliver on 1/15. Going to wait until then to finish.

It will be interesting to see what came out of the reservoir since it was so dirty, it should be separated well by tomorrow.

When I was rinsing it out with the light distilled water/coolant, I spilled a little on the concrete, and it left a tan stain. I didn't mess with it.

Possibly casting sand? I should've taken a pic of the stain.

Stay tuned.......

 

[EdGs]

Started a thread about the 'sand'.

Casting sand in Ram 5.7 Hemi engines

Currently in the middle of changing a cracked radiator in my 2015 Ram 1500 5.7L 196k miles. Was original radiator, original thermostat, still have original water pump. In the course of draining the coolant etc., I emptied my coolant reservoir. The fluid was very dark. I will admit that when...

www.ramforum.com

Will update this one when I get the cleanout done.

 

[Ken226]

Just adding this info in case someone in the future finds it useful.

I got the two CalorStat 192* thermostats that I ordered from Rock Auto.

The box says "made in France".





The most accurate temp probe I have is the remote probe on my Innova 3340 Pro multimeter, so I used it to continuously monitor the water temp when I tested them.

I put them both in a pot of warm water next to each other and turned on the heat. At about 191.5* they both started to open at exactly the same time, and took about 25 seconds to fully open. At the point they were both fully open, I turned off the heat and monitored them while the water cooled.

They both stayed fully open until about 192*, then both started very slowly closing as the water cooled. Both were fully closed by 170*.


So, I installed it in my truck and went for a 15 to 20ish mile driven while monitoring the temp on my Evic. It went up to 195 pretty quick, then when the thermostat opened, it dropped down to 190. After a few miles it stabelized on 192* and stayed there:

 

[Wild one]

Just adding this info in case someone in the future finds it useful.

I got the two CalorStat 192* thermostats that I ordered from Rock Auto.

The box says "made in France".
View attachment 558813




The most accurate temp probe I have is the remote probe on my Innova 3340 Pro multimeter, so I used it to continuously monitor the water temp when I tested them.

I put them both in a pot of warm water next to each other and turned on the heat. At about 191.5* they both started to open at exactly the same time, and took about 25 seconds to fully open. At the point they were both fully open, I turned off the heat and monitored them while the water cooled.

They both stayed fully open until about 192*, then both started very slowly closing as the water cooled. Both were fully closed by 170*.


So, I installed it in my truck and went for a 15 to 20ish mile driven while monitoring the temp on my Evic. It went up to 195 pretty quick, then when the thermostat opened, it dropped down to 190. After a few miles it stabelized on 192* and stayed there:


View attachment 558814

They gotta be better then anything Motorad builds,lol. Keep us updated on them long term Ken,as alot of new thermostats test good when new,but 6 months down the road they go south

 

[Wild one]

Just adding this info in case someone in the future finds it useful.

I got the two CalorStat 192* thermostats that I ordered from Rock Auto.

The box says "made in France".
View attachment 558813




The most accurate temp probe I have is the remote probe on my Innova 3340 Pro multimeter, so I used it to continuously monitor the water temp when I tested them.

I put them both in a pot of warm water next to each other and turned on the heat. At about 191.5* they both started to open at exactly the same time, and took about 25 seconds to fully open. At the point they were both fully open, I turned off the heat and monitored them while the water cooled.

They both stayed fully open until about 192*, then both started very slowly closing as the water cooled. Both were fully closed by 170*.


So, I installed it in my truck and went for a 15 to 20ish mile driven while monitoring the temp on my Evic. It went up to 195 pretty quick, then when the thermostat opened, it dropped down to 190. After a few miles it stabelized on 192* and stayed there:


View attachment 558814

Ken do have a pick of the thermostat and gasket.When i hunt it up on Rock Auto it shows a totally differant gasket then what the hemi uses,thermostat is a bit differant to.The 180 looks right,but the 192 not so much

 

[Ken226]

Ken do have a pick of the thermostat and gasket.When i hunt it up on Rock Auto it shows a totally differant gasket then what the hemi uses,thermostat is a bit differant to.The 180 looks right,but the 192 not so much

It's the TH721789J, priced @ $16.19

More Information for CALORSTAT TH721789J

 

[GTyankee]

VERNET Automotive advanced thermal and innovative management solutions

Improving safety, efficiency and reducing pollution are the challenges of CALORSTAT for the coming years.Provide compact, robust and cost-effective solutions.

www.vernet-group.com

Home - Copy - Calorstat by Vernet

Discover our Calorstat by Vernet website dedicated to the brand and the ranges we propose. Explore everything about the brand

www.calorstatbyvernet.com

home office is Paris, France
They make products in several countries, including Argentina & China

Locations - Vernet Group

Where to find Vernet Group around the world?

www.vernet-group.com

 

[GTyankee]

I recall the days when all Thermostats closed when they broke
NO Coolant was able to move throughout the coolant system

Now most if not all fail in the Open position, one advantage to that, is that not as many head gaskets blow out

 

[EdGs]

I recall the days when all Thermostats closed when they broke
NO Coolant was able to move throughout the coolant system

Now most if not all fail in the Open position, one advantage to that, is that not as many head gaskets blow out

I did not know they fail open, @GTyankee, I always thought only the 'failsafe' ones did that.

Well I had a bit of a struggle getting the coolant filled on mine, but she is done, yay!



Thank you to all for your help and encouraging words, that's what makes this site so awesome.

 

[GTyankee]

You may be right about thermostats ??
i have not had to buy a thermostat since 2010