The Ford Capri Laser Page

Spark plug gap sizes seem to vary depending what you read.

But please can anyone verify what the de facto should be for a 2.0 Laser using NGK AP6FS (2710)

The Haynes states .64mm, but other info, including the specs/jobs page of this very site states 0.8mm. And as the NGK plugs are gapped at 0.8mm I've always left them at that.

I did think that the Haynes supplement section updated the gap size for later Capri's and/or modern plugs but I can't find any info now having just looked.

Yes Paul it's 25 thou or 0.64.. I have the NGK catalogue in my hand right now and it states 0.6mm. I posted this recently for another enquirer on the same subject.

Thank you Paul, appreciate your reply. Actually I think that may have changed you know. The NGK researcher would have copied that from the Haynes I guess. Steve (stevemarl) has checked his Laser handbook and it specifies a gap of 0.75mm (30 thou). I thought the Haynes supplement had this info too but can't spot it now.

Will dig my handbook out later and check that too, but I do think the .64mm info was superceded later on.

Just checked my handbook too and it does state a gap of 0.75mm

Just dug out my owners handbook and what Stevemarl has told you is correct. 30 thou or 0.75mm. This is for Motorcraft plugs.

I remember when I was working we had the online professional version of Autodata and on many vehicles there were different gaps for different brands of plug eg 0.6 for NGK, 0.7 for Bosch, 0.7 for Beru etc. Wish I'd printed off the data sheets for the Capris now.

Might pay to ring your plug supplier to check.

Thanks Paul.

As the NGK plugs come gapped as per the spec. that is 0.75mm, and I have always fitted those plugs with that gap without issue, I am happy to fit them as that.

Used to use a fag packet. Worked fine. Does a tenth of a millimeter (0.64/0.75) make that much difference?

340truck wrote: ↑Sat Jul 25, 2020 3:43 pm Used to use a fag packet. Worked fine.

I remember my granddad doing that in MKIII Cortina one night after it failed to start. I was pretty impressed at the time when it fired up but I hadn't even had my first driving lesson back then.

I changed the plugs in mine last night, using the NGK ones with the gap as they came, i.e. as per the later spec of .75mm. Car runs so smooth and well. Also, I had a little judder when pulling off before, thought I'd need to look at the clutch/flywheel, but it's completely gone now. Didn't want to put the car to bed whilst on my celebratory test drive last night, just wanted to keep driving around, love that feeling.

pbar wrote: ↑Tue Aug 11, 2020 6:10 am I had a little judder when pulling off

We didn't need to know that!

Hehe, we don't have many secrets around here do we Martin

Bug wrote: ↑Tue Aug 11, 2020 7:04 am

pbar wrote: ↑Tue Aug 11, 2020 6:10 am I had a little judder when pulling off

We didn't need to know that!

I did