250ci won’t run

Discussion in 'Technical' started by firedog, Nov 15, 2023.

  1. firedog

    firedog Member

    Joined:
    Apr 30, 2002
    Messages:
    7
    Likes Received:
    1
    Trophy Points:
    33
    Have an all original low mileage (30k) 74 Comet 250ci that had run very well. It started to start hard and run rough, then turned into overheating. Now it will barely start and when it tries sounds like it’s way off time. I have checked TDC and rotor is at cyl #1, so it doesn’t seem to have jumped the timing gear etc. Coil checks out, plugs, wires, cap and rotor all new, fresh fuel etc. Any ideas where to start from here?
     
    firedog, Nov 15, 2023
    #1
  2. greasemonkey

    greasemonkey Burnin corn

    Joined:
    Aug 3, 2005
    Messages:
    2,401
    Likes Received:
    203
    Trophy Points:
    208
    Garage:
    1
    Location:
    Sedalia,MO
    Vehicle:
    1973 ford maverick Grabber,2017 dodge ram,88t-bird,indian scout,Indian Chieftain.95 Mustang GT
    Does it have coolant in the cylinders?
     
    greasemonkey, Nov 15, 2023
    #2
    TeeEl likes this.
  3. firedog

    firedog Member

    Joined:
    Apr 30, 2002
    Messages:
    7
    Likes Received:
    1
    Trophy Points:
    33
    Haven’t checked them all but #1 was clean…
     
    firedog, Nov 15, 2023
    #3
  4. f4294v

    f4294v Member

    Joined:
    Jun 6, 2022
    Messages:
    81
    Likes Received:
    31
    Trophy Points:
    33
    Location:
    Dallas
    Vehicle:
    73 comet
    compression,spark,fuel in that order. Possibly rotted hose or vacuum leak.
     
    f4294v, Nov 16, 2023
    #4
  5. TeeEl

    TeeEl Senior Member

    Joined:
    Oct 25, 2019
    Messages:
    825
    Likes Received:
    527
    Trophy Points:
    242
    Location:
    Colorado
    Vehicle:
    '73 Ford Maverick Resto-Mod
    The car is probably trying to let you know that it's ready for a V-8 swap...
     
    TeeEl, Nov 16, 2023
    #5
    71gold and Shorty like this.
  6. firedog

    firedog Member

    Joined:
    Apr 30, 2002
    Messages:
    7
    Likes Received:
    1
    Trophy Points:
    33
    Thanks 429, good advice. I will do some more digging…
    Thanks Tee, it has been considered, too many hobbies eating the cash lol
     
    firedog, Nov 16, 2023
    #6
    Comet79 likes this.

Share This Page