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Spark plug gap


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28 minutes ago, Fix-Or-Repair-Daily said:

Hi all

I'm going to be servicing my 2012 focus 1.6 ecoboost this weekend, what should the spark plug gap be?

 

Thanks 

i am also wanting to know this too.

 

i normally get boshe ones and i dont do anything to the gap but after reading your post, i had to google it.

 

apparently it does the engine good and idles very good if gapped properly.

just found this:

 

 

 

its quite old but seems quite useful info.

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Does it become obvious if the gap becomes out of spec, like the engine is ding lumpy or something?  It's just that my wife's VW is coming up to 15 years old and never checked the plugs in all that time.

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31 minutes ago, south_bound said:

Does it become obvious if the gap becomes out of spec, like the engine is ding lumpy or something?  It's just that my wife's VW is coming up to 15 years old and never checked the plugs in all that time.

I really wouldn't want to have to loosen 15 year old plugs! :unsure:

 

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2 hours ago, Jimpster said:

if you buy the specific plugs they usually come pre gapped

which spark plugs do you get for your Focus?

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11 hours ago, TomsFocus said:

I really wouldn't want to have to loosen 15 year old plugs! :unsure:

 

Thanks Tom, sounds like a good reason to leave them as they are then.  I suppose you will say the same thing about the original injectors fitted to my 15 year old Mk 2 Focus diesel?

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1 hour ago, south_bound said:

I suppose you will say the same thing about the original injectors fitted to my 15 year old Mk 2 Focus diesel?

DV6 injectors & injector nuts tend to loosen themselves over time, they're probably not too bad. 

I wouldn't want to risk the glowplugs if they haven't been changed in 15 years though.

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I bought Bosch plugs from euro car parts.

 

Yes the spark plug gap does affect running and how complete the burn is inside the engine. 

 

I found a video on YouTube saying it should be 0.7mm but someone in the comments said it should be 0.6mm.

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Ford prescribes to adjust the spark plug gap of the 1.6 ECOboost to 0.8 mm.
 

The following spark plug gaps are prescribed by Ford for the Focus MK3/MK3.5:

1.6 Duratec TI-VCT = 1,20 mm (0,7-0,8 mm for LPG versions).
1.0 ECOboost = 0,7 mm.
1.5 ECOboost = 0,8 mm.
1.6 ECOboost = 0,8 mm.
2.0 Duratec HE TI-VCT = 0,9 mm.
2.0 ECOboost ST = 0,8 mm.
2.3 ECOboost RS = 0,75 mm

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2 hours ago, JW1982 said:

Yes it will matter.

For your 1.6 Duratec engine the spark plug gap needs to be set to 1.2 mm.

whats that in thou as i believe thats what feeler guages work in 🤣

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many thanks guys

never done a gapping before, i will buy some boshe and the feeler gauge.

many thanks guys

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40 minutes ago, froggy8 said:

i have had a look on ebay but all the feeler i have seen only goes to 1mm.

You can use two blades together.  So 1mm and 0.2mm.  (Or any other combination that makes 1.2 if you fancy a challenge. :biggrin: )

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5 minutes ago, TomsFocus said:

You can use two blades together.  So 1mm and 0.2mm.  (Or any other combination that makes 1.2 if you fancy a challenge. :biggrin: )

thank you and sorry for silly questions.

i will just buy any in that case.

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30 minutes ago, froggy8 said:

thank you and sorry for silly questions.

i will just buy any in that case.

Not silly questions, things are only easy when you know! :smile:

 

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3 minutes ago, TomsFocus said:

Not silly questions, things are only easy when you know! :smile:

 

thank you

i have always bought any sparkplugs and just fit them in.

just means that ford is bit more fussy than other brands.

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there are NO silly qustions, just ones to which you dont know the answer yet, plugs usually come pregapped for the make model but can move due to knocking and banging always best to check before just throwing them in.

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