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Author: Subject: IVA compliant bonnet catches
starterman

posted on 9/1/18 at 08:27 PM Reply With Quote
IVA compliant bonnet catches

As per the title I'm after some recommendations for IVA compliant bonnet catches/covers that allow the bonnet to be pulled down into place.

Cheers
Mike

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40inches

posted on 9/1/18 at 11:07 PM Reply With Quote
The standard rubber over centre catch. Available from CBS, MK GBS etc.
Description
Description

https://www.carbuildersolutions.com/uk/iva-ok-rubber-bonnet-catch-9mm

[Edited on 9-1-18 by 40inches]

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starterman

posted on 10/1/18 at 07:39 AM Reply With Quote
Thank you. Those are the ones that I was looking at, I was just wondering how strong they were as the bonnet needs a tad bit of pressure to get it to fit snug.

Cheers
Mike

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SJ

posted on 10/1/18 at 08:14 AM Reply With Quote
As long as they are fitted well they are strong when it comes to holding the bonnet down but don't do much to locate it side to side.

Stu

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ReMan

posted on 10/1/18 at 08:29 AM Reply With Quote
quote:
Originally posted by SJ
As long as they are fitted well they are strong when it comes to holding the bonnet down but don't do much to locate it side to side.

Stu
Ditto
They are very stond
usually the bonnet and scuttle take care of side to side location, though some have fitted locating pins in the top rail





www.plusnine.co.uk
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starterman

posted on 10/1/18 at 09:06 AM Reply With Quote
I've got locating pins so side to side isn't an issue it's just pulling the bonnet down into place. You've reassured me that those are the catches for me. Thank you.

Cheers
Mike

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David Jenkins

posted on 10/1/18 at 01:22 PM Reply With Quote
I've had a set of those rubber latches on my car since before its SVA, over 11 years ago. The only problem I've ever had was when I forgot to do them up...





The older I get, the better I was...

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gingerprince

posted on 10/1/18 at 04:58 PM Reply With Quote
Beware, they expand in hot weather

Flying Bonnet
Flying Bonnet



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David Jenkins

posted on 10/1/18 at 06:03 PM Reply With Quote
Mine have always worked OK - except when I forget them...





The older I get, the better I was...

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ReMan

posted on 10/1/18 at 06:14 PM Reply With Quote
mine too.
But much accuracy needed and , to cover the above, fit them on a warm day!





www.plusnine.co.uk
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big-vee-twin

posted on 11/1/18 at 12:55 PM Reply With Quote
They are a bit stretchy, so make sure when fastened you have taken up the give.





Duratec Engine is fitted, MS2 Extra V3 is assembled and tested, engine running, car now built. IVA passed 26/02/2016

http://www.triangleltd.com

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David Jenkins

posted on 11/1/18 at 02:57 PM Reply With Quote
They do come with a drilling template (mine did, anyway) so it's just a case of pulling the bonnet down as tight as possible - I used a small ratchet strap - and marking out the holes. Drill, then pop-rivet the bits in place and Robert's your father's brother.





The older I get, the better I was...

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gingerprince

posted on 11/1/18 at 03:08 PM Reply With Quote
As a belt-and-braces (after my bonnet incident) I now pin mine: -

SVA Latch
SVA Latch


Basically make a small hole on the thin bit near the rear of the catch. When close, you can then slide a pin (snug interference fit works fine for me) and due to the shape of the mount, it stops the catch from opening and therefore coming loose, even when warm.

For longevity, I'd probably glue a small washer inside to protect the hole from splitting, but mine's been okay without a washer for several years, and the bonnet has remained secure.

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theduck

posted on 16/1/18 at 11:24 AM Reply With Quote
or just fit this type with the rubber covers caterham sell for iva

https://caterhamparts.co.uk/bonnets/5300-bonnet-catch-locking.html

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