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    Author Topic: No more Gremlins  (Read 602 times)

    Offline Mike71Cuda

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    • Posts: 254
    No more Gremlins
    « on: August 22, 2007 - 03:21:48 PM »
    The good news is: Looks like the demons are gone! I redid the entire harness for engine and tranny (making sure of no bare wires, soldered instead of crimoed wires, got continuity of each wire I worked on) I replaced new balast resistor and ecu harness and now we have spark. Confirmrd that dist was not 180 out and tried to fire it.

    Now the bad news: On 4 seperate occasions the carb burped back and a small fire brewed until I smothered it.
    I was told it was the timing, but I twisted the dist all the way from left to right, and had same results.

    Another buddy told me I might have avalve sticking open and that could be the reason for the camp fire. Sound right? He told me that having the engine in the garage for 5-6 years can create all types of problems (before you ask I spun motor on occasion to no seize rings).

    He suggestion is to take cvrs off and confirm valve is not stuck and try again. If it is a tender touch with a dead blow or similar to jar it loose
    Anyone had a similar event happen?
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    Offline MEK-Dangerfield

    • C-C.com Expert
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    • I don't get NO respect! Member since 1/25/2002
    Re: No more Gremlins
    « Reply #1 on: August 22, 2007 - 05:46:57 PM »
    I have had a weak spark cause this. Yes, it scares the h@ll out of you seeing the carb on fire!!  :scared:

    With your key in the "on" position, you should have around 9 volts on the "+" side of your coil.


      Mike
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    Mike

    1970 Challenger - SOLD
    2016 SXT+.  1 of 524 SXT+'s in Plumb-crazy for 2016.

    Offline tactransman

    • Sr. Resident
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    • 1973 Challenger- Member here since April 14, 2006
    Re: No more Gremlins
    « Reply #2 on: August 22, 2007 - 06:16:53 PM »
    It still sounds like timing.
    Logged
    Terry-tactransman 
    Torqueflite/Automatic Transmission Specialist
    Union, Mo.
    Give a man a fish and he eats for a day,teach him to fish and he eats for a lifetime.

    Offline matt63

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    • Posts: 1855
    Re: No more Gremlins
    « Reply #3 on: August 22, 2007 - 08:22:32 PM »
    Weak spark seems unlikely.  I agree with the timing issue or perhaps firing order incorrect.  I had a blonde moment once and installed my wires on my BB using SB firing sequence (CW vs CCW)!  There were backfires and small carb fires.  :scared: I felt pretty dumb. I can't remember all the details on your testing. Did you swap carbs and see if anything changed?
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    Matt in Edmonton

    '68 Valiant
    '73 Cuda 340 4 speed (408) SOLD

    Offline Mike71Cuda

    • Jr. Member
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    • Posts: 254
    Re: No more Gremlins
    « Reply #4 on: August 23, 2007 - 08:35:32 AM »
    I think order is good but will obviously check it
    Carb is a brand new 850 Holley out of the box, nothing else to swap with.
    I fell pretty dumb with this whole install so I know how you felt
    Will check timing again
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    Offline moper

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    Re: No more Gremlins
    « Reply #5 on: August 24, 2007 - 12:06:39 PM »
    Make sure #s 5 and 7 are wired properly. (check whole firing order...) and dont sweat the minor fire. It's excessive fuel that puddles when things arent quite right.
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    Offline Mike71Cuda

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    • Posts: 254
    Re: No more Gremlins
    « Reply #6 on: August 24, 2007 - 12:08:40 PM »
    Why 5 and 7 because they are on same side of block and next to each other in order?
    Just assuming
    Great thought though, thx
    Smitty
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