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  1. C10MixMaster

    Reverse Lights

    pull the connector with the blue and green wires from the neutral safety switch. jumper those two wires together. if your back up light come on you have a switch that's bad or an adjustment issue. If not check for voltage the blue wire should be hot (ignition on) If it has voltage you...
  2. C10MixMaster

    Wamrods

    I've been hit over the head by hoods and hatches with failing gas struts, way to many times. I like good old fashion springs.
  3. C10MixMaster

    bad camshafts on 305's,,?

    changing a cam because of a flat lobe has been done countless times with varying degrees of success. yes particles left in the engine are not ideal and could come back to bit you later on, for the most part the small stuff ends up in the filter the bigger ends up in the pan , pan can be removed...
  4. C10MixMaster

    Oil Pressure Question

    i thinks that's more of an urban legend. Unless your turning crazy rpms far in excess of that engines 5500 red line.
  5. C10MixMaster

    84 K20 with 454 back to stock configuration

    the part that would say California is smudged out but it looks like federal to me? but it does shows all the equipment you need for the original 5.7. if the rpo sticker is still in the glove box it will show a code for California compliant also. Motor homes got carbs past 87 that might be...
  6. C10MixMaster

    84 K20 with 454 back to stock configuration

    If you can find an unmolested 84 350 you would not have to deal with a referee station anymore. California allows swaps you might have to jump through some hoops though. A legal swap would be any engine of the same class ,Heavy Duty in this case, from the same year or newer. do you know what...
  7. C10MixMaster

    Blinker problems

    I would start with checking the grounds at the RR tail light.
  8. C10MixMaster

    Upgrade Battery Cables

    You can make your own without a crimp tool. propane torch from home depot is cheaper than having them made. Napa has a good selection of ends and cable. I use a center punch for my initial crimp. Put 1 dimple on one side and 2 dimple on the back side. Then use a propane torch and solder the...
  9. C10MixMaster

    Can't find my temperature wire - LS Swap

    green should be the correct color. the wire end your showing looks like a oil pressure sender connector this is the typical sensor and connector
  10. C10MixMaster

    Oil Pressure Question

    i just did this in my truck. the pan came rite out no problems. you might have to turn the engine to clear the front counter weight. It can defiantly be done in the truck
  11. C10MixMaster

    Engine Detailing?

    ive has good luck with simple green and the cheep spray on oven cleaner from the dollar store. (cation the oven cleaner my take off paint)
  12. C10MixMaster

    bad camshafts on 305's,,?

    Not a big fan of the 305 however if the cams all thats wrong with it . you can change a cam in the truck. All sbc flat tappet cams are known for going flat and modern zinc free oils do not help.. Proper break in procedures are critical you can kill a cam in the first 20 minutes. If your...
  13. C10MixMaster

    Dual Tanks Vs Single 40 Gallon Tank For 8.1l Swap

    my dual tanks are a love hate kinda thing love having them but filling up you have to turn the truck around kind of a PIA. You can do in tank pumps although it is at the upper end of the pressure the switching valve can take 8.1 runs 58 psi stall the valve is rated to 65 psi . you can do low...
  14. C10MixMaster

    87 TBI to carb swap question

    the stock electric tbi pump in the tank wont supply enough fuel for 400 hp. if you do a mechanical pump i would remove the in tank pump and replace it with a mechanical pump style sending unit or modify your sending to draw fuel from the bottom of the tank. If you go electric you can upgrade...
  15. C10MixMaster

    Play in steering box at normal operating temp.

    I cant say ive ever run across a temperature related steering problem. I would check and see if the fluid is foaming up when its hot and causing problems. possible trapped air in the system? To purge air turn wheel till it hits the stops apply enough pressure to force the bypass valve open...
  16. C10MixMaster

    Temperature Gauge Wire HELP :)

    The A/C harness is separate. it will have a 2 wire connector on the fire wall over the distributor. the light green goes to the throttle solenoid ,the dark green is the A/C clutch wire. The dark green wire for the temp gauge will be part of the engine harness. if you hooked the ac wire...
  17. C10MixMaster

    What have you done to your square lately??

    Personally A/C was one of the first things i put back on my truck. we see a lot of triple digit temps and it kinda sucks without ac.
  18. C10MixMaster

    Temperature Gauge Wire HELP :)

    be aware the ac and ac throttle solenoid wires are green to..
  19. C10MixMaster

    78 Chevy Dual tank replacement

    single port sending units would be from before evap canisters, when the gas caps were the vent.
  20. C10MixMaster

    78 Chevy Dual tank replacement

    only problem is the wiring is different between 3 and 6 port switching valves. if i read his post rite it was originally the earlier style.
  21. C10MixMaster

    78 Chevy Dual tank replacement

    You have mixed and matched parts. NO you cant run a return line to 1 tank. The early systems had tanks with 2 lines, 1 for fuel, 1 for vent. From there the fuel lines went to a three line switching valve 1 line from each tank and 1 to the fuel pump. the vent lines "T" together and connect to...
  22. C10MixMaster

    90 r1500 subruban acting up.... Help

    yes a map sensor or vacuum line to will kill any drive ability. i would expect a code from a bad map though
  23. C10MixMaster

    Erratic Carb at idle

    you can take a squirt bottle with water to find vacuum leaks. spray down anything you suspect leaks hoses manifold carb base etc. then you hit a leak you can here it and the idle will change. that's also a good way to check plug wires. spray then with a mist if there bad they will spark n...
  24. C10MixMaster

    90 r1500 subruban acting up.... Help

    were the plugs wett when you replaced them ? if so you might have a weak spark and an ignition problem. if not then you have a fuel ratio problem. your injectors may be spraying but not enough. a fuel filter is cheep and easy and may cure this (from experience). If you can check the pressure...
  25. C10MixMaster

    90 r1500 subruban acting up.... Help

    changed plugs and now its running worse.. first recheck you plug wires did you cross a set? factory plugs or racing plugs? go back to factory style plugs if there not. now the original problem no power. check your fuel pressure. the pumps a week to begin with and regulators are...

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