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It might not even damage the parking pawl if only a short while, they tend to "ratchet" when given enough force. If the 4 speed was in neutral and the T case went into gear it would not take long the destroy the transmission, the rear shaft and its planetary gears/clutches would be running...

The ends are reusable, all you need is to replace the hose, I use Discount Hydraulic hose Hydraulax Tough (HT) as it is the closest dimensionally to the OEM hose and is very tough and flexible.

The temp switch is easy to verify, if everything is plugged together and the fan does not run when cold, unplug ether wire going to the temp switch and the fan should run (fan runs when switch is OPEN) if all that checks out then the "system" is working, then if the fan does not run when hot...

You definitely do not want the transmission shaft turning as that will damage the transmission, this is why it is recommended to tow with TC neutral trans park. Having said that the trans shaft is not too likely to turn with the TC in neutral but I would not risk it. This would also insure the...

If you have the trans in park then that is not an issue as the rear transmission shaft is not turning,

First the disclaimer, I only think I know stuff, in actuality I don't know squat so if you take my advise and it all goes to hell it's not my fault :eek: The Jeep sites say flat towing a NP242 is no problem in neutral (trans in park) basically the only difference is the Jeep NP242 has an...

I agree with Coug, no imbalance is desired if only a 28V alt is installed.

There is a large neg cable going from the transmission side of that stud to the starter, it carries all the negative load, probably best to have two people but I managed with only one.

You need to test/troubleshoot the fan system, it is likely it was unplugged because there is a problem causing overheating.

https://www.nsnlookup.com/equipment-intelligence/land/hmmwv

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Troubleshooting guide

Welcome to the SS forums

The problem with those is first there is very little room on top of the engine to even mount one and second the balance point is actually on top of the cowl directly in front of the windshield, I only use the rear lifting eye. I used to have a large version of this to pull the engines out of...

I have one and it works perfectly, it can be had with a tool kit that everyone that works on HMMWVs should have...

Have you tested the batteries? with a good set of relatively charged batteries the voltage should not change, the alt should produce enough at idle to reach the 28.2V or so that it normally charges at. Checking all grounds is a good idea on any truck This is a 200A alt? Have you checked the idle...

The tach uses the A The tach uses the AC terminal from the reg. for the RPM input, if the alt is not charging the tach will not work. Put a VOM on the batteries or alt output and see what is really going on, curious if you hold high RPMs does it go back to green?

This entire thread is just an exercise in theory, I am not sure what the OPs motivation is as he did not ever say. I actually realized another scheme that would make it appear to be rectified (as you pointed out with the "blocking" in one direction when testing the phase cable and still...

An automotive alternator makes AC, (three phase AC actually) that is why it is called an alternator and not a generator, it then needs to be rectified into DC this can be done inside (most modern alternators) or outside of the alternator.

What is the difference?