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  1. rhkcommander

    Coolant Filter - Bypass or In-line

    Pressure will be higher on feed than on return because of flow resistance through the heater core. As to how much? I dont know.
  2. rhkcommander

    625 ARPs available for 6.9s

    If the deal was for 6.9 or 7.3 id be in like flynn with my 7.3. But i understand tooling is different since the studs are different... Already got a standard arp 6.9 stud set... Maybe we should get one going for 7.3 :)
  3. rhkcommander

    Is This What Coking Looks Like?

    automatic IDI DB2 pumps have that black TPS thing on it that might work :dunno
  4. rhkcommander

    glow plug relay help

    one step at a time. if you do it all at once it makes it harder to diagnose potential problems. pop the new ones in and fix the air intrusion and fsv and you'll probably be good
  5. rhkcommander

    glow plug relay help

    Try cranking it and that will tell you if its air intrusion. I had to start my old engine that way back in the day until I fixed the problem - but taking 15 seconds to glow on those plugs is also way longer than should be. They *should* be red in about 5.
  6. rhkcommander

    glow plug relay help

    try these things for me, for giggles: Skip the glow plugs, just floor the pedal and crank it over for 10 seconds. Now stop and glow for 10 seconds, then crank and see if it starts: if it does, air intrusion. If not, I'd say those diesel rx plugs suck :dunno , or some unseen problem elsewhere...
  7. rhkcommander

    glow plug relay help

    Your welcome, what glowplugs you running? Sounds almost like you got 12 volt glowplugs, our trucks generally use 6v glowplugs for quicker starting as they get hot quicker. 12 volt take longer but are almost indestructible too in comparison lol. 6v plugs don't like much time
  8. rhkcommander

    glow plug relay help

    You know they are getting power, how can you tell? Did you take one out, ground the body out and leave the wire attached to the end and see if it gets hot? Unless you have no compression, I can guarantee they are not getting powered on properly. If everything was working properly then it...
  9. rhkcommander

    LED

    Resistors are cheap, easy way to test if the load isnt enough. I vaguely recall people putting these side lamps on relays like the headlights often are upgraded to, if so relays draw minimal power too... So why no issue? Is there any common wiring between the headlights and signals - grounds...
  10. rhkcommander

    turbo noise

    If you gouge the blades and not remove material it might stay balanced. Not sure if the moved material will matter but these spin 100k+ rpm
  11. rhkcommander

    LED

    Wire in resistors to add load or splice in an led bulb with turn signal, see what happens
  12. rhkcommander

    glow plug relay help

    That voltage drop is normal, keep going. It wont start with two seconds of glow. Get a watch, cellphone, whatever. Get a second-count and hold the button for 7 seconds. Then try to start it. Rough? Air intrusion, poor timing, bad compression, and a few other possibiltes. Revving slow...
  13. rhkcommander

    Question about intake hat and intercooler pipes

    You could adapt a carburetor cover into an intake hat with a little bit of work. Some people modify the intake manifold to just use a pipe too instead of the giant hole. Its aluminum by the way
  14. rhkcommander

    glow plug relay help

    honestly glow plug brands vary so much that 10 could be too much or just fine. I shoot for 7-8, works great for bosch and wellman (so far), beru seem to take a little longer to get as hot. bosch would be ready after 5. this is another reason I don't like the glowplug controller, can't adjust for...
  15. rhkcommander

    glow plug relay help

    Glowplugs shouldn't be tested with the connectors on, the body is grounded but the tip where you connect to isnt necessarily - it is either "grounded {by conducting through the heating element into the body), or open from a burnt out heating element- this is how the glow plug test light idea...
  16. rhkcommander

    Are either of my 6.9L block s/n's good for a medium performance build?

    Catastrophic failures are rare with these engines, bottom end is robust. Ive only heard a few instances of rods bending or breaking, only heard of one or two cranks being busted. And since i dont know the stories it could have been hydrolocked or something else. 110cc pump isn't that much to...
  17. rhkcommander

    Where to find radiator supports?

    Junkyard. I've heard of some people cutting and splicing one from a gasser but don't know enough about fitment to help you there
  18. rhkcommander

    Holy torque Batman!

    with new engine I can burn out up until 3rd. She always drifted good though even with the old engine :dunno
  19. rhkcommander

    glow plug relay help

    Total contol over the glow plugs on your truck, not putting faith in almost three decade old controllers. Scenario: one plug or more fails: Manual system: no problem, just a little rougher start (depending on how many burnout) Controller: clickclickclickclickclick and a much harder time...
  20. rhkcommander

    From unknown used truck to dependable truck

    If you want to keep it from breaking down and its in rough shape, you will probably want to look into: new hoses, belts, glowplugs, batteries, alternator, starter, return line kit, oil, oil filter, injectors, injection pump, and getting it timed. Maybe even the coolant, look up cavitation and...
  21. rhkcommander

    Is there an easy fix for door rattle

    I was gonna mention this too, it works really well! In daylight you could see light straight through to my cab there was such a gap. I don't know if the seal helps with the rattling or not but it definitely helps road noise
  22. rhkcommander

    down pipe removal

    Did you clearance the firewall lip while old downpipe was off? It will help make it much easier :sly
  23. rhkcommander

    Turn Key, No Juice...

    sounds like loose wiring, probably at firewall - could have a crack there too since you have a manual. terrapinmfg sells a kit to reinforce the firewall. Try pushing on the giant wire bundle down there. There are a few smaller bundles under the hood too but this is the only spot where they all...
  24. rhkcommander

    Is there an easy fix for door rattle

    Door hinge pins might be shot too after all of that wiggling.
  25. rhkcommander

    Testing a tach sensor and/or gage & harness?

    loose wiring and bad grounding, corrosion, could be loose probably by the firewall. I haven't chased mine down to it yet but a lot of the stock wiring is crap. My gauge with no tach sensor will "read" up to 800 or so RPM:rolleyes: and go back down to 0. And it would work 50/50 when I did have...

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