ok ive replaced coil plugs plug wires ig mod. pick up coil in the dist. new batterie and still wount fire. need help please
May 27, 2012 at 2:26 AM
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MHPAUTOS
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Do you have spark at the plugs? fuel system ok, you have fuel pressure?
May 27, 2012 at 2:27 AM
TRUCKDRIVENDADDY
MEMBER
35 POSTS
no spark at plugs and cant figure out why been tracing wsires all weekend have spark from coil to dist but not from dist. to plugs.
May 27, 2012 at 2:47 AM
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TRUCKDRIVENDADDY
MEMBER
35 POSTS
and the fuel pump kicks on but wount go off now
May 27, 2012 at 2:48 AM
MHPAUTOS
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31,937 POSTS
If you have spark at the coil lead into the cap and not out, check the rotor and the carbon bush in the top of the cap and also signs of tracking in the cap, these will look like thin pencil lines, this is cracking and carbon build up will case the spark to track to earth and not the plugs. The spark will always earth at the point of least resistance.
May 27, 2012 at 3:29 AM
TRUCKDRIVENDADDY
MEMBER
35 POSTS
Ok I checked the cap and the rotor and there both new and there is no tracks so I'm not sure where to go from here.
May 27, 2012 at 4:27 AM
MHPAUTOS
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If there is a good spark at the end of the coil lead and nothing coming through the cap it must be in the cap or rotor, is the rotor correct? is the carbon bush ok? it can only be something here.
May 27, 2012 at 4:45 AM
TRUCKDRIVENDADDY
MEMBER
35 POSTS
ok i checked and theres fire from the carbbon to the plugs could i be 180 off on thr firing? if so how do i tell and how do i fix it.
May 28, 2012 at 9:48 PM
RASMATAZ
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75,992 POSTS
See below
Image (Click to enlarge)
May 28, 2012 at 10:29 PM
MHPAUTOS
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31,937 POSTS
Pull #1 spark plug and crank over with coil lead out, put your finger over the spark plug hole feel for compression, then turn by hand untill timing mark is at just befor TDC 5 or 10 Deg will do it, look at rotor and ensure it is pointing to #1 plug lead if not re set dist and ensure firing order is correct, this should be close enough to start and re set timing with a light.
May 28, 2012 at 10:41 PM
TRUCKDRIVENDADDY
MEMBER
35 POSTS
ok it fires but wount stay running and the fuel pump wount shut off when it primes and ive got a small leak in the fuel tank. what now?
May 29, 2012 at 2:42 AM
MHPAUTOS
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31,937 POSTS
Fix fuel leak and check pump relay is not stuck on.
May 29, 2012 at 2:47 AM
TRUCKDRIVENDADDY
MEMBER
35 POSTS
Ok how do I check the relay for the pump. And will jbweld work to fix the leak?