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The fast idle and cold start advance both have a green wire connecting to them. The pink wire as pointed out above is what turns the fuel on or off. My post in #24 is just following normal fuel filter bleeding procedures. If the engine is cranked with the pink wire connected and powered while...

Heath diesel 22 inch fan. It could be a Duramax fan, but I have never compared them. Heath Diesel severe duty fan clutch. I drove 487 miles yesterday. Late afternoon above 90°. Never spiked higher than 203° coolant temp while climbing some long steep grades on I-10 west of Kerrville.

It might be too late. But, pull your pink wire when checking the lift pump flow with the fuel filter open.

Have you removed the check valve for the return line on the IP to see if it has a bunch of little black pebbles from a disintegrating IP? Near the end of this video is what I am referring to:

The rule of thumb used to be that above 35-40 mph air from the airstream flow would keep an engine cool. It still might be true for a non turbo 6.2. However the original poster has a truck with an add on turbo, air conditioning and a transmission cooler. All of those things add heat to the...

Thank you.

How did you adjust the brakes? You should have a firm pedal that is 2-4 inches above the floor with no air in the airpack/truck air system. You wrote it has been bled twice and the brakes are adjusted. Also, that there are no leaks. At least 1 of those 3 still needs attention. Here is a video...

Thank you for the links. Any idea how to find the lock up percent and duty cycle for that fan clutch? I wasn’t able to.

I have looked but not found V belt rotation parts that are as good.

Put a light layer of grease on the starter and put into position. Then see where it is contacting the bell housing by what transfers. Lightly grinding the greasy spot might get you the clearance you need. However, the bent part of your description has me wondering if that is causing the pilot...

The Heath stuff is reverse rotation serpentine belt. I don’t know of a V belt fan clutch and larger fan.

Almost good timing. I am in the process of doing several videos about testing, hot wiring, taking apart, testing the parts and putting a 27SI back together. Should be another week or so before I start getting them published on my channel linked in my signature below. What exactly isn’t...

Oh, I don’t have a 465 behind a 6.2. I do have a NV4500 behind one. But, your 465 won’t bolt to that.

The 465 came from the factory with the 6.2 and the 27MT starter. Does the bell housing go over the located pins ok? If so since those pins don’t have very much clearance, how about your input shaft bearing?

OK. You really are getting hot and you know what is what. I ended up with the biggest 2 core aluminum radiator radiator.com sells for the squarebody. It helped, but even on our relatively flat terrain I was still getting over 210° on 95°+ days with high humidity while going 70 mph or more with...

What do you consider overheating problems? What temperatures are you hitting on the coolant? The pre combustion chambers in the stock 6.2 have the smallest throats leading to the combustion chamber of any of the 6.2/6.5 engines. I think there were 5 or maybe 7 different sizes over the 20 year...

Since there are no throttle plates on a diesel. There is no restriction on air entering the engine. Actually, atmospheric pressure restricts air entering the engine. Only fuel is regulated on a diesel engine by the injection pump. Basically, a diesel can’t run lean like a gasoline engine. It can...

I saw some on eBay a few days ago. Tow bar feet.

Just to reinforce. I have run my M715 on 12 volts for almost 25 years now using the 3 lever light switch. Just make sure you have 12 volt bulbs in all locations.

Yes, the oil light should come on with the key and stay on until oil pressure is achieved. The test for it is to ground the lead to the sensor with the key on and the light should come on. I don’t remember and didn’t look it up, but I think the 4x4 light also glows when its leads are...