Ok can anyone help me work out whats wrong with my car (el falcon).
I was driving along and gave it a big squirt from 60 to about 120 maybe and it was fine but as soon as I backed off I noticed the tacho jumping around between 2 and 3k and then I went to rev it and it just died out and then wouldnt start again. It would wind over strong but just wouldnt fire. Fuel pump would prime normally, had spark aswell. Towed it to a mates place and left it for a few hours and came back and started it and it would idle really rough and was raspy when I revved it real crackley. Put the timing light on it and the mark on the balancer was sitting maybe 20mm left of the mark on the block but was jumping probs another 50mm left again and it was never in the same spot twice. It shat an aux shaft 10,000ks ago and when that happened it would backfire and pop and not even idle. But it only had 3 teeth left on it so im thinking if it is the aux shaft I havent taken as many teeth off it this time. Took the dizzy out and it hasnt lost any teeth but cant see down the hole for s**t to look for broken peices of aux gear, put another dizzy in and now it wont even fire it just backfires and pops so timing must be out a few teeth now? Too f**k hot to keep working on it atm so just after some ideas of what could be wrong?

when you replaced the aux shaft last time did you fit a new dizzy?
and was it a bosh dizzy?

if you used the same dizzy the wear on the gear will chew the aux shaft out again..
if you used a cheap aftermarket dizzy unfortunately the gear on those dizzys are rubbish and also chew your aux shaft out...

best thing if you change an aux shaft is fit a good gear from a factory bosch dizzy to your dizzy or source a new bosch dizzy...

but considering you have now had 2 aux shafts fail in this engine, I would get another engine as all the metal from the gear has now been through your oil pump and the finer metal pumped through the rest of the engine..

The mechanic said that the dizzy looked fine so we used it again (factory bosch one)

it would have been the dizzy....
ive been there done that...

f**k, alright thanks for your help

If you get a new AUX shaft get the dizzy gear with it (matching gears). Then change the gear on your dizzy to match.

Will do

I know from elsewhere; post1309753.html#p1309753
that the part identification for the aux shaft was the same through
the (I6) e series production run, but there's something I've been
wondering about (perhaps a number of) those aux shaft's in EL's...

Since the EF had no distributor, I'm wondering if Ford made a decision
to omit a step in the on-going production process for the aux shaft's
(when the time came to begin producing the EF engine), namely omitting
the case-hardening of the (unused distributor) gear on the aux shaft -
then years later after Ford had switched over to production of the
EL eng, maybe Ford mistakenly used a number of previously manufactured
aux shaft's (intended for the EF eng) that had these non-case-hardened
gear - would explain why the aux shaft gear is always what wears down
whilst the gear on the distributor shaft always survives almost undamaged,
(when a known good OEM Bosch distributor has been used throughout, and
disregarding those incidences where the fault was attributed to be from using
those {chinese?} poorly manufactured replacement distributors)...

I'd be interested if anyone had replaced an EL aux shaft with an aux shaft
that was originally in an EB or ED, and if the wearing problem was or was not
still seen (assuming a known good OEM [Bosch] distributor had continued to
be used throughout)...
Comments anyone?
(FYI - Case Hardening;) http://216.239.32.20/url?sa=t&rct=j&q=c ... 9006,d.dGY

from a replacement perspective, when they were available from ford the aux shafts from ea to au all share the same part number,
I have seen a few ea,eb that have killed aux shafts, but it does seem more common in cases where a ef or au engine has been fitted with a dizzy..
and the ones ive seen has had either a worn dizzy (play on the shaft) or had a cheap aftermarket dizzy fitted.....