Welcome to Club Hot Rod!  The premier site for everything to do with Hot Rod, Customs, Low Riders, Rat Rods, and more. 

  •  » Members from all over the US and the world!
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and hundreds of thousands of posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

 

Thread: Stumped
          
   
   

Reply To Thread
Results 1 to 15 of 15
  1. #1
    ZenLordOne is offline CHR Member Visit my Photo Gallery
    Join Date
    Dec 2010
    Location
    Loveland
    Posts
    3

    Stumped

     



    Helping a friend get a camaro running. Need to know if anyone has run into this before. Turns over fine with a new battery and wants to start, but only firing on 3 cylinders. TDC is verified, fuel is no issue. New plugs, wires, cap, rotor. Car is a few miles away, and I didn't write it down, but from what I remember, it is firing on cyls 1 and 3 driver side, cyl 2 on pass side. Motor is built inside and out with race ready (street) internals (not that it changes basic engine 101). Only ignition part not replaced yet is the coil. Was told it ran fine the last time it did (5yrs ago). Did all the pre start processes with fresh oil, pump and valvetrain priming, upper cylinder lubrication, manual crank turning, etc....
    Under the dash is a wiring nightmare from previous owner. Any help would be much appreciated.... :/

  2. #2
    rspears's Avatar
    rspears is offline CHR Member/Contributor Visit my Photo Gallery
    Join Date
    Sep 2007
    Location
    Gardner, KS
    Car Year, Make, Model: '33 HiBoy Coupe
    Posts
    9,895

    A little more information might help, like year of camaro&engine you're dealing with, ignition type, fuel system carb or EFI, what's stock & what's not, etc.
    Roger
    Enjoy the little things in life, and you may look back one day and realize that they were really the BIG things.

  3. #3
    18436572's Avatar
    18436572 is offline CHR Member Visit my Photo Gallery
    Join Date
    Mar 2007
    Location
    Granbury
    Car Year, Make, Model: 68 Chop top
    Posts
    147

    Wiring nightmare is next project. Does not effect your current ignition problem. Get the ignition fixed. Plug, wires, timing, dizzy. You only need three things to cause an engine to fire; spark, fuel, and compression.
    Let's work on the spark to all 8 cylinders.
    Post back to us.

  4. #4
    HOSS429's Avatar
    HOSS429 is offline CHR Member Visit my Photo Gallery
    Join Date
    Jun 2007
    Location
    New Market
    Posts
    2,444

    advance your timing way up .. the fellow on here with the 390 that would`nt crank found his initial timing way too low
    iv`e used up all my sick days at work .. can i call in dead ?

  5. #5
    sfort's Avatar
    sfort is offline CHR Member Visit my Photo Gallery
    Join Date
    Mar 2009
    Location
    Allen
    Car Year, Make, Model: 46 Chevy Truck
    Posts
    528

    Pull your plugs (one at a time) and test for spark at the electrode.

  6. #6
    techinspector1's Avatar
    techinspector1 is offline CHR Member Visit my Photo Gallery
    Join Date
    May 2003
    Location
    Zephyrhills, Florida, USA
    Car Year, Make, Model: '32 Henway
    Posts
    12,423

    Direct wire the + of the coil to the + of the battery. Bypass all the nightmare wiring. Inspect car for ground straps and bare metal connections. You need the body grounded to the frame and the frame grounded to the motor and the motor grounded to the body. Yeah, I realize it's a Camaro, but it still has subframes that should be grounded to the body. Replace the + and the - battery cables and make certain they connect to bare metal. I remember a fellow going round and round in circles trying to get his Impala running. Finally found out that although the positive battery cable looked good from the outside, it was separated down inside the plastic cover.

    After you have all that nailed down, follow this tutorial I wrote for the Crankshaft Coalition Wiki....
    http://www.crankshaftcoalition.com/w...valves_SBC_BBC

  7. #7
    HWORRELL's Avatar
    HWORRELL is offline CHR Member Visit my Photo Gallery
    Join Date
    Oct 2003
    Location
    ST.LOUIS
    Car Year, Make, Model: 31 FORD 5 WINDOW,69 442, 305 sprint car,
    Posts
    1,410

    I'm a thinkin if it will fire on 3 cylinders it can only be 1 of 4 things. 5 Bad wires,bad cap,bad rotor or 5 teeth missing on the reluctor in the distributer.

  8. #8
    vara4's Avatar
    vara4 is offline CHR Member Visit my Photo Gallery
    Join Date
    Dec 2003
    Location
    Pahrump
    Car Year, Make, Model: 1947 International Pick Up
    Posts
    3,179

    I had a bad coil once that gave me and all my buddies night mares.
    It would only spark part of the time and the car would be missing.
    Try putting a differant coil on it before you buy one and see if that fixes it.
    What ever you find please let use know, thanks.
    kurt

  9. #9
    jerry clayton's Avatar
    jerry clayton is offline CHR Member Visit my Photo Gallery
    Join Date
    Feb 2006
    Location
    Bartlett
    Posts
    6,819

    you need to know what year this is to even come close to an answer for the electric part--For example if its a FI car, the injectors operate by the computer grding them--
    it has new cap, wires, rotor, plugs--wires could be on wrong--since firing order is 2183 might say something as to why its firing on 13&2--batch fire injectors----

  10. #10
    ZenLordOne is offline CHR Member Visit my Photo Gallery
    Join Date
    Dec 2010
    Location
    Loveland
    Posts
    3

    Thanks for all the replies, some thoughtful info thereÖ
    Canít be back at the car until tomorrow, but to fill in some blanksÖ 73 type LT, 75 4 bolt truck motor, deep sump oil pan, hi volume pump, headers, edelbrock intake, holley 4779 dual feed carb, electric fuel pump, stage 2 heads with alum intake valves, roller rockers, lumpy cam (no specs as yet). My primary focus is getting it running as the current owner wants to sell it to help pay for some education expenses. The wiring nightmare will only get my attention if absolutely necessary.
    When I do return to the car I will have a new coil standing by. Before that install I will do the direct path from the battery to the coil after checking and fixing connections as needed. With no helper, and no remote starter, I will have to get creative to confirm spark at each plug (but I have some ideas). I will post back my findings / results probably late tomorrow night.
    Thanks again..

  11. #11
    jerry clayton's Avatar
    jerry clayton is offline CHR Member Visit my Photo Gallery
    Join Date
    Feb 2006
    Location
    Bartlett
    Posts
    6,819

    let 's see now---73 vehicles points, 75 vehicles hei---
    which do you have? they are wired different

  12. #12
    ZenLordOne is offline CHR Member Visit my Photo Gallery
    Join Date
    Dec 2010
    Location
    Loveland
    Posts
    3

    HEI ignition

  13. #13
    HOSS429's Avatar
    HOSS429 is offline CHR Member Visit my Photo Gallery
    Join Date
    Jun 2007
    Location
    New Market
    Posts
    2,444

    Quote Originally Posted by HWORRELL View Post
    5 teeth missing on the reluctor in the distributer.
    good one
    iv`e used up all my sick days at work .. can i call in dead ?

  14. #14
    HWORRELL's Avatar
    HWORRELL is offline CHR Member Visit my Photo Gallery
    Join Date
    Oct 2003
    Location
    ST.LOUIS
    Car Year, Make, Model: 31 FORD 5 WINDOW,69 442, 305 sprint car,
    Posts
    1,410

    Quote Originally Posted by HOSS429 View Post
    good one
    Yeah that was a pretty good one huh ? Been awhile since I've worked on HEI not very many running around in all those different vehicles I have to work on daily. Plus all this grey hair makes things fuzzy.
    Ahhhh, what was we talking about ?????

  15. #15
    jerry clayton's Avatar
    jerry clayton is offline CHR Member Visit my Photo Gallery
    Join Date
    Feb 2006
    Location
    Bartlett
    Posts
    6,819

    those early hei didn't like wet

Reply To Thread

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Links monetized by VigLink