yohon

Day 1 overheat with mechanical fan ( no shroud) install electrical fan set up and wire Day 2 blow brake line going 80 mph during engine break in Day 3 transmission cooler line is severed internally ( routed different then previous and the sharp end of the tube cut the line) work loved the giant red puddle Day 4 finally find source of overheating to be bad thermostat ( thought electric fans were in effective) Today's mission find source of hard start ( fuel leak somewhere) pressurized tank to about 10 psi and got fuel from above tank no where else pulled valve cover and verified no injector leaks. Next thought is connector tube o ring but not sure how to test besides smoke on start up.

Im itching to try it myself but want to give the new engine the best chance at breaking in well. So I have been holding off. I also convenientlyhave a new problem every day to fix with it. Once I get a few thousand miles on it I'll give it a shot

Running and driving now. Still breaking it in and finishing up small things ( finally got new upholstery for the seats ) once I get a few thousand miles on it I'll swap from air to air intercooler to air to water and try out the water methanol. I do have a dummy spool made up to attempt intercoolerless operation but I dont have high hopes for it to be honest. Also fun fact water jugs from heb make great funnels they even have the same threads as the oil cap

Will do im going to attempt to relearn the actuator once I get to work on the truck again ( father took it down to Houston) will keep yall posted.

I have a off brand version from amazon that should replace the doorman part number ( could be the problem) I'll call doorman up and see about the calibration procedure

Correct the 3 pin vs 4 pin "male side" with the pins on the green board. The wiring harness or "female side" has a blank block that will fit up to 6 wires ( only uses 3) and it is 100% the actuator replaced the adapter and even went as far as to swap the 3 pin bad motor with the working motor from the 4 pin however the green board itself is actually bad ( sat full of coolant from bad heater core)

I have a bad blend door actuator on my father's truck (2002 3500 stock) ordered a replacement and all I can find is 4 pin units when plugged it it only rotates 1 way and makes a full 360 turn ( when installed it goes hard agains the blend door in the cool position. no matter the temperature setting. The old unit was a 3 pin but every part numbers listed is for a 4 pin. Am I missing something?

Here is the link to one of the big tuning post on this forum dont let it overwhelm you. https://mopar1973man.com/forums/topic/12002-quadzilla-v2-custom-tunes/ i wouldn't get too craxy with Timing until you get a set of headstuds copy your current tune in the format provided on page 1 and we will get you tuned up !

Any modifications done to the truck? I dont think my quadzilla came with any tunes but its fairly easy to turn.

Yup cummins just called for conventional 15w 40 too nothing special. And I can get alot of conventional 15w 40 for the price of x1 round of break in oil. Cummins i trust to say what their engine needs and dont need mopar/dodge I'll take with a grain of salt

So I finally have my new engine installed ( bone stock rotating assembly except I did put a tow cam in it) and im looking at engine break in procedures they all recommend towing decent weight no idle time ect all makes sense but I have 2 questions 1 ) should I run higher timing with the quadzilla to try and raise cylinder pressure for better ring seal? 2) highly contrivosal but does anyone recommend a break in oil if so what type? Ill be switching to Synthetic after the first 1000 miles and changing oil after the first 400-500 miles ( block has been sitting for years so lots of dirt and such probably in it)

I wasn't sure if it needed to be circulating at all times so I put a 3 way valve on mine to "bypass" the heater core didn't want to take a chance after I broke the last head stud.

The rebuild kit i got had one for it https://ebay.us/m/U9ICf1 I will say its a easy rebuild but not much use all your really doing is re sealing the system I never could find replacement punp "vanes"

Any update on this? I did the same thing to mine along with a new evaporator and was disappointed with the results. Im about to add cut off valves to the heater core and inslate the ac lines from the orfice to the cab and see if that helps.

Thats a good point. I just rebuilt my power steering pump and was shocked how much was on the magnet especially since the only worn part i found was the aluminum sleeve the whole pump shaft rides on my only thought was it must be from the gear box. Im about to find and read your original article and add a filter to mine along with a cooler.