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What are the best glowplugs?

Discussion in '1982-Present GM Diesel' started by afroman006, Jun 25, 2005.

  1. afroman006

    afroman006 1/2 ton status

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    I've searched a little bit but could not come up with a deffinative answer. I keep seeing stuff like 6g's, 11g's and quickheats thrown around but I dont know what any of the designations mean and which ones are the best. I live in an extremely warm climate so they wont see heavy use but I dont want them to mushroom...ever. Thanks.
     
  2. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    9G's and 11G's will eventually mushroom.

    AC60G's are continuous duty, take longer to heat but won't mushroom. "Quickheats" are also continuous duty, heat very fast and won't mushroom.

    AC60G's are OK if you have a manual GP set-up, because they typically don't get enough glow time using the factory controller...

    Quick heats are supposed to work great with the factory controller, because they get glowing red in about half the time it takes the 60's.

    I'll eventually replace my 60G's with Quickheats.

    Rene
     
  3. 84CUCV

    84CUCV 3/4 ton status Premium Member

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    Rene, where do you by these GP? thx
     
  4. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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  5. afroman006

    afroman006 1/2 ton status

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    Thanks. I think I'll go with whichever one's cheaper. I will be using a manual setup so its all good.
     
  6. BurbLover

    BurbLover 1/2 ton status

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    I replaced all my GP's with the Delco 60G's and I noticed trouble starting a bit. If I go manual as you suggest (was man but went back to auto), how long would you suggest holding the GP's on at various temps? For example, negative temps, 40-50, 60-70, 80+. Also, What would you consider to be the longest the Delco 60Gs should be held on? How long between holding? (On for # on seconds, off for # of seconds, on for # of seconds, ....)
     
  7. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    At or near freezing I'll hold them for 10-12 secondsAt 45-50ish more like 8 seconds
    At 60+ maybe 5 or 6 seconds.

    As far as i know they are 'continuous duty' so i really don't worry about them. I've held them on for up to 15 seconds more than a few times when it got really cold for here and I hadn't yet bought the new starter.

    Rene
     
  8. 84CUCV

    84CUCV 3/4 ton status Premium Member

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    thanks rene
     
  9. diesel4me

    diesel4me 1 ton status Premium Member

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    I put AC's in mine..

    I put the G60 AC plugs in my diesel--I have a manual pushbutton switch to activate them--I leave them on as long as the it takes for the seatbelt buzzer to stop buzzing,and longer if needed in frigid weather...its always started without fail,though it took a few attempts on a few really cold days when I did not have my block heater plugged in..( -10-15 below!)..as far as I know they all still work,I could only get 7 of the old ones out though--cost 7.99 each at autozone--they look rusty enough to be 10 years old,but I only installed them in jan 04...:crazy:
     
  10. afroman006

    afroman006 1/2 ton status

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    Bought a set of AC60G's on ebay for $40 shipped!
     

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