In my never-ending thirst for information and knowledge I discovered this Caterpillar Cooling System training information. You may find it an interesting read.
JK
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I ordered a 52” wand to help clean the radiator from the inside.
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Update.... if anyone is still following
Newell engineers worked with a hydraulic company in Tulsa Oklahoma.
Hydraquip
4130 SE 70th Ave
918-663-3661
I’m working with that team to order a few new parts that have been discontinued (Vickers) and superseded with Eaton items. I’ll post info as I receive it.
I’m hoping to speak with their engineer that works with Newell. I have a list of questions about the system that will help me understand, resolve the problem, and hopefully help others.
I believe I have multiple issue impacting the cooling system. Cat thermostat stuck open? Hydraulic pressure issue? Stuck solenoid hydraulic valve? I haven’t run the engine at a RPM above 1000-1200 but I’m certain I’m not seeing the fan running on high speed. It has been described on this forum as “blow your hat off” but most recently it’s been described to me as “scary high speed and I’m not comfortable standing near the plastic fan”.
So... when my engine gets warm I’m not getting the airflow through the radiator that is required. We’ll see.
JK
Jeff, you might also try to install a temporary gauge on the hyd line. On other forums I have read of the Cat engine developing a wear issue on the splines that drive the hyd pump. At a minimum, while you are in the fix it once and for all mode, I would pull the pump and look at the splines.
Thank you Richard, I agree.
Yesterday I received a 1/8” gauge. I was told that years ago Newel installed a gauge in the manifold using the noted port.
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If the weather cooperates this weekend I’ll try to get the gauge installed. I think it will tell us a interesting story.
JK
Yep but do not leave the gauge in place. They are known to blow out.
what richard said. i had one on mine when i bought it and it blew out when i was at an emissions station. what a mess.
tom
What about incorporating a valve so the pressure can occasionally be checked? Just a thought...
Slow but sure...
New coolant temperature regulator and associated system items such as the temp sensor...
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Updating valves on the hydraulic manifold...
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Still cleaning out the header tank...
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If you have a tank like this I strongly suggest you take a close look at the inside. I had a substantial amount of scale buildup anywhere above the coolant level.