ignition problem - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

JG33PY · 07-18-2004, 23:17

standard points dissy on 351 will rev clean through to 5800 one day but backfires and farts at other times. new leads,plugs gapped to .033", points are spotless, timing set at 6btdc (balancer timing mark is correct). electronic ignition is planned but for the moment i have to use points.
any ideas would be appreciated.

brenx · 07-18-2004, 23:45

Check the leads. I have a similar problem and suspected leads. I checked and sure enough the leads are throwing spark where they shouldn't be.

Brenden

JG33PY · 07-18-2004, 23:51

i thought it may have been the leads so i bought a new set of top guns, and i've also got them all separated. i'm thinking maybe the condenser is on it's way out but havn't had the chance to get one yet.

GreenMachine · 07-19-2004, 02:10

had a similar problem that i only just sorted out today - loose wiring at the coil. seems obvious, but then again - i missed it several times!

smciner1 · 07-19-2004, 08:32

Quote:

Originally Posted by GreenMachine

had a similar problem that i only just sorted out today - loose wiring at the coil. seems obvious, but then again - i missed it several times!

Yep. Always the first thing to check. I remember driving home from Lorne on day and the car was running like an absolute dog. Checked when I got home and one of the Ignition Leads had fallen off #1 Spark Plug!

JG33PY · 07-20-2004, 18:45

got talking to a bloke about my problem and he believes it's the vac pump on the carb and not an ignition prob. because i don't run a choke he says the arm from the primary linkage to the vac pump should be set with no gap. worth a go i guess. any of you blokes have similar findings?