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+--- Thread: Thermo image on the engine top. (/showthread.php?tid=1498)
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Thermo image on the engine top. - mmssvv - 02-22-2017
Hi everyone!
Today after a regular run I took some pics. around the truck and engine.Found those thermo cameras are very useful.
Below are some pictures from the top of the engine.I am wondering what element under the cover can produce this abnormal in my opinion heat?
Any thoughts ???
[attachment=2520][attachment=2521][attachment=2522][attachment=2523]
RE: Thermo image on the engine top. - Magard - 02-22-2017
Wow. Is that telling on a bad roller?
RE: Thermo image on the engine top. - mmssvv - 02-22-2017
(02-22-2017 )Magard Wrote: Wow. Is that telling on a bad roller?This is in the middle(considering width) on the cover .Are rollers there or little on the side?
RE: Thermo image on the engine top. - marek4792 - 02-22-2017
Injector? Or valve seal leaking compression?
RE: Thermo image on the engine top. - snailexpress - 02-22-2017
Was engine running or off?
RE: Thermo image on the engine top. - Rawze - 02-22-2017
I have taken a lot of thermography of engines from the top cover like that. Usually, you can see the injectors (all 6) as hot-spots through the cover, but the pics you posted reveal one is quite a bit hotter and is a significant imbalance.
That is an injector doing that. Since you have a 2350, it could also be the electrical coil for it and not the injector mechaincs. it could also be a loose wire connection so check the torque of the screws for the wiring.
You could wait until the engine is cold, take the top cover off, crank it up and watch it warm up with the thermo camera. If it is a coil, you should see it fairly quickly. If something else, it will take longer to spot. Also, you can remove the cover with the engine somewhat hot and should be able to see what it is too.
Before spending $1200+ on a new injector, I would move the injector to cylinder number 1 and perform the same test. Make sure if you do this, you also use Insite to correct the injector trim data too.
===========
For those who don't know, a good quality thermal camera is a priceless tool for a repair shop.
Here are some examples from the past ...
batteries -- http://rawze.com/forums/showthread.php?tid=1393&pid=11663#pid11663
turbo and manifold -- http://rawze.com/forums/showthread.php?tid=1434&pid=12452#pid12452
brakes out of adjustment/ uneven stopping force - http://rawze.com/forums/showthread.php?tid=929&pid=7804#pid7804
other problems found ..
http://rawze.com/forums/showthread.php?tid=42&pid=200#pid200
and..
http://rawze.com/forums/showthread.php?tid=3918&pid=33469#pid33469
RE: Thermo image on the engine top. - Texasdude74 - 02-22-2017
I'm going to have to get me one of them! What's the best choice for one to carry on the truck? What's a good one cost? $1k?
RE: Thermo image on the engine top. - mmssvv - 02-22-2017
(02-22-2017 )snailexpress Wrote: Was engine running or off?5 minutes after shut down.
RE: Thermo image on the engine top. - mmssvv - 02-22-2017
(02-22-2017 )Rawze Wrote: I have taken a lot of thermography of engines from the top cover like that. Usually, you can see the injectors (all 6) as hot-spots through the cover, but the pics you posted reveal one is quite a bit hotter and is a significant imbalance.Thank You Rawze!!!Like every time, useful answer from you.Will check and post the result here.Thanks again!
That is an injector doing that. Since you have a 2350, it could also be the electrical coil for it and not the injector mechaincs. it could also be a loose wire connection so check the torque of the screws for the wiring.
You could wait until the engine is cold, take the top cover off, crank it up and watch it warm up with the thermo camera. If it is a coil, you should see it fairly quickly. If something else, it will take longer to spot. Also, you can remove the cover with the engine somewhat hot and should be able to see what it is too.
Before spending $1200+ on a new injector, I would move the injector to cylinder number 1 and perform the same test. Make sure if you do this, you also use Insite to correct the injector trim data too.
===========
For those who don't know, a good quality thermal camera is a priceless tool for a repair shop.
Here are some examples from the past ...
batteries -- http://rawze.com/forums/showthread.php?tid=1393&pid=11663#pid11663
turbo and manifold -- http://rawze.com/forums/showthread.php?tid=1434&pid=12452#pid12452
brakes out of adjustment/ uneven stopping force - http://rawze.com/forums/showthread.php?tid=929&pid=7804#pid7804
other problems found ..
http://rawze.com/forums/showthread.php?tid=42&pid=200#pid200