No start
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No start
My 68 f100 original 360 w/electronic ignition sits alot, but the battery is relatively fresh and meters good. Drove it the other day a couple of miles and back just fine, but the following day couldn't get it to start. It's getting fuel to the carb, starter seems to be rolling ok, played with timing and check for spark, good and good. Ideas??
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Electro ign and choke
I installed the electronic ignition a few years back and have been pleased as punch I did. Never an issue and never a points job to be done.
Manual choke appears to be doing its job.
Trying to trace back all four elements and find the bug in the system.
Manual choke appears to be doing its job.
Trying to trace back all four elements and find the bug in the system.
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So...did some poking around and couldn't find the timing mark with timing gun at first. Advanced the timing all the way and was finally able to see the marks get close, but still no start.
The truck ran and shut down fine, went to start and move it back a bit and that was it. No rough running, knocking, off timing, strange noises or etc., one minute good and the next it wouldn't start.
The truck ran and shut down fine, went to start and move it back a bit and that was it. No rough running, knocking, off timing, strange noises or etc., one minute good and the next it wouldn't start.
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Update
Starter turns it just fine, spark to plugs, compression looks good and fuel to carb. Thinking maybe the Pertronix failure, timing chain and/or distributor.
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Post Fiend
Joined: Apr 2002
Posts: 19,311
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From: Waterloo, Iowa
If spark is at plugs, the Pertronix should be OK. Is it a good spark though - nice fat, bluish white, with a snap to it? A weak spark would prevent starting.
It is strange that the timing appears way off during crank? Earlier Ford dampers are prone to the outer ring slipping - not sure if later 360s have this problem - and would explain the timing strangeness if they are.
It is strange that the timing appears way off during crank? Earlier Ford dampers are prone to the outer ring slipping - not sure if later 360s have this problem - and would explain the timing strangeness if they are.
Fleet Mechanic
Joined: Oct 2005
Posts: 1,369
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From: Gainesville, GA
What Ted said about the damper maybe the cause( I remarked my damper). To check, remove #1 spark plug, turn the engine to get the piston to the top(with a long socket and a wood dowel in the hole), look at the damper. You can also check the timing chain by removing the valve cover and see if both valves, on #1, are closed.
Lead Driver
Joined: Aug 2003
Posts: 7,592
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From: **** hole San Jose ca.
Well now try by passing the Ign key switch run circuit.
This is done by Hot wiring it, make up a jumper wire attached to the +side of Battery going to the +side of coil terminal.
Then try to start with your ign. key switch. If it starts then check for bad ign. switch or it's plug.
No need to remove any other wires at the coil. Remember if it starts and runs to kill the motor remove Battery Hot wire.
Orich
This is done by Hot wiring it, make up a jumper wire attached to the +side of Battery going to the +side of coil terminal.
Then try to start with your ign. key switch. If it starts then check for bad ign. switch or it's plug.
No need to remove any other wires at the coil. Remember if it starts and runs to kill the motor remove Battery Hot wire.
Orich
Post Fiend
Joined: Apr 2002
Posts: 19,311
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From: Waterloo, Iowa
Another thing to look at "truck sits a lot" and especially if outside, corrosion of electrical connections are something that always need servicing but particularly in the older rigs. Not saying this is the problem here, but it's easy to eliminate as a cause and even better, doesn't cost anything.
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Going to check all electrical connections again, make sure everything is good at the coil, and any issue there might be with the damper. Thanks
Friend recommended pulling up the distributor partially and moving it over one tooth to center the timing. Anyone ever heard of or tried this?
Friend recommended pulling up the distributor partially and moving it over one tooth to center the timing. Anyone ever heard of or tried this?
