ThomasV

Hey,

Brand new Motorcraft plugs bought at FORD have a gap of 1,1 ??!... def. not correct.
Anyone know the correct gap for a 100% standard Escos Small turbo ?

Some say 0,7 others say 0,8 ...

Cheers
Thomas

cossymad

I would have thought 0,8mm but book says.....
Standard power eec4= 1,0
Standard power T34=0,8

I tend to always run 0,1mm smaller than recommended though

ThomasV

Cheers! ... thanx mate

Will change this weekend and gap correct.

/Thomas
Escort Cossie '94
Radiant Red

kennyA

Hi

I set mine to 0.7mm.

I tried Champion 59's and set them to 0.85mm. The car backfired almost every gearchange.

kenny.

ThomasV

made the gap 0,9mm og car seems to run fine.

/Thomas
Escort Cosworth '94
Radiant Red

G1EN

Same as Chris said, i read up and found ST to be 1.0mm

0.8 for BT.

ThomasV

Might have been a tad fast on saying, that all was ok ...

When I floor it ... the car hesitates a bit, but only the first time .... when flooring it afterwards, it is gone and everything is fine...

Will pull 'em out and make them 0,8 instead....

/Thomas
Escos ST '94

Stu @ M Developments

iTrader: (12)

AGPR12PP are gapped correctly as standard for the T28 Escort.

You will probably find you have insufficient power supply to your coils. Its very common.

AJC

iTrader: (6)

mine are like 0.7

ThomasV

Cheers Stu .... so, what do I do ? .... just make the gap smaller ? ...

Best regards
Thomas

Stu @ M Developments

iTrader: (12)

You should never ever need less than 0.8mm on a T28 cosworth, in fact, ive recently run the management at 380 bhp with 0.8mm gaps, no problem, period.

Stoo

Any ideas on a BT EsCoss..20psi..Dark Greens...

My car ran spot on, then my plug gaps were changed and it missfires on full load, only sometimes though, more often than not if it's cold..?

I'm not sure what they were gapped to before. I think it's about 0.7 just now..

ajjames

hi stu what voltage should be at the coils should it be battery voltage and what normally causes the low voltage at the coils ?

Stu @ M Developments

iTrader: (12)

Stoo. 0.65 max for you mate.

Voltage should be battery charging voltage. Shite looms are the normal cause mate, best to rewire a new ignition live spur. Easy enough.

ajjames

cheers stu i checked the voltage at mine today and replaced the dodgy wires at the same time the voltage at mine when the car was running was about 13volts but the voltage at the battery was 14volts do you think that is good enough voltage to not cause any problems

Stu @ M Developments

iTrader: (12)

Yes pal.

ThomasV

well .... now the gaps are 0,8 on my agpr12pp plugs and the car still doesn't run correct. It's better than before, but when driving on the freeway in 4th og 5th gear and then giving it full throttle, it chugs a bit when coming on overboost..... it only happens when it hits just about max boost.

If I change the gap to 0,7 it should dissappear (it did last time) but now we are pretty far from standard gapping.

Is there any downside to gapping smaller than what is correct in the book ?

STU mentioned something about rewiring a new live ignition spur .... how is this done ? ... might be the only good solution.

I have tried to clean the EDIS module and the 2 big multi-plugs between ignition leads and EDIS. Cleaned good with contact-spray, but no change.

Stu @ M Developments

iTrader: (12)

Its most likely a poor positive supply to teh coils. Check it with a meter.

Theres no real problem with 0.7, but your just masking the symptoms, not fixing the fault.

ThomasV

Cheers STU.

I will measure all 4 tonight with a meter.
Would rather have it working right, than changing gap to 0,7 again ....

/Thomas

ThomasV

Have just measured.....

Battery voltage is 12,5 when car is off, 13,88 when car is at idle.

I then measured the plugs at the two coils .... one was 11,88 and the other was 12,04v ..... is this the problem ???

/Thomas
EsCos '94 - T25
Radiant Red

ThomasV

anyone ????