Harness Fitment - standard size?

[RobbieL]

removed my old Willans 6 point harness as it had expired for race use and replaced it with what I assumed to be the exact same make/model.

However, the eyelets to attach the harness to the car are smaller than the ones I removed and as the bolts fix into the chassis I cannot use different ones.

Is there not a standard attachment size for these? I don't want to start drilling out the holes in the eyelets as that could massively compromise safety - but at the same time the bolts that will pass through the eyelets are far too small for the threaded holes in the chassis. Any advice?

[Trev450]

Not sure if I'm missing something here, but can't you use your original eyelets?

[RobbieL]

Trev450 said:

Not sure if I'm missing something here, but can't you use your original eyelets?

Not easily as they are fixed into the webbing on the harness so would be a nightmare if not impossible to replace with the old eyelets.

I just assumed that these would all be a common size to enable quick and easy installation.

[Trev450]

I see your problem now. I thought you were referring to the bolt in eylets not the ones attached to the harnesses. Suggest maybe a phone call to the harness manufacturer or someone like Demon Tweeks to see if they offer them in different sizes.

[RobbieL]

just spoken to DT who informed me it's ok to drill the endplates providing there's still approx 3mm clerance from the edge.

This sounds very dodgy and I'm a bit sceptical about following the advice........

[Trev450]

I don't think thats the sort of advice they would give if they weren't sure of their facts. Maybe have it confirmed by the manufacturer for peace of mind though.

[Graham]

I'd give willans a quick call, they are very helpfull.

[h_____]

Call manufacturer followed by your series scrutineer. i'd be suprised to here you can drill then. I had trouble getting my replacement harness to fit, but msar sorted it all out, including the addition fittings i needed.