One for the engine guys

[Andrade]

After driving the capri for a while it's starting to misfire. Yesterday i drove it to go for an errand, about 15 minute trip, then on my way back it started to miss a beat every few seconds.

 

The engine is a 1.3 pushrod with lumenition, the water temperature guage was in the middle during misfiring, i changed the coil to a new one one i had bought for the viva, plugs are new, yesterday i changed the leads to silicon ones i had lying around in the garage but still to test it.

 

any ideas what it might be? the valves have been set recently, carb was set and engine timed professionally

[escort21]

Sounds like an ignition component breaking down when it gets hot, suspect the coil even if its new

[Andrade]

Sounds like an ignition component breaking down when it gets hot, suspect the coil even if its new

 

thing is, i changed the coil quickly while the engine was still warm, so i took out a "warm" coil and put in a cold one, and it was still misfiring..

[escort21]

Crap in the carb jets, or put the points back in make sure it isn't the lumention

[SmokeEm]

Intermittent fuel pump problem?

[Andrade]

Crap in the carb jets, or put the points back in make sure it isn't the lumention

 

Could be the jets i have not opened the carb so far.

 

It used to do it before lumenition too, i tought the lumenition would solve it actually. the lumenition was on the viva so it's tried and tested.

 

I'll have a look at the carb if the leads make no difference, the only ignition thing left to change is the distributor cap and the rotor thing.

[Andrade]

Intermittent fuel pump problem?

 

either that or intermittent spark, i dont think its a timing issue as i've just had the engine set up

[dave waudby]

my suggestion is fit new condensor new points new rotor arm new dizzy cap

 

it sounds like one of those is at fault

[dave waudby]

oh and check if theres any play in the dizzy (the part which the rotor arm fits on to

[escort21]

Lumention doesnt use a condensor Dave

[dave waudby]

Lumention doesnt use a condensor Dave

 

doh i missed that bit

[ox]

wot plugs have you got in it. quite fezable a plug could be braking down i put a brand new set in cortina last year starded up fine went for drive got miss fire put old plugs back and all was fine

[Andrade]

wot plugs have you got in it. quite fezable a plug could be braking down i put a brand new set in cortina last year starded up fine went for drive got miss fire put old plugs back and all was fine

 

I have NGKs in it, theyre new - the misfiring was there before changing the plugs too though

 

I remembered i had a serious issue with the viva that after driving it for a little while it used to stall, then let it rest and it used to start up normally again. after i changed half of the engine it came down to a dodgy fuel filter. I went to buy one on my way home from work and replaced it. now i'm off for a longish errand and see what happens.

[Andrade]

Problem solved! fuel filter again -__-