Hints and Tips - Fixing the Bonnet Hinge

From: Pete Bishop
Sent: 13 July 1999
To: british-cars-pre-war
Subject: A7 Bonnet hinge

Can any one give me some advice on fitting A7 bonnets together? After many months of cutting and shaping panels to fit my chummy's body tub (an experience Mike Lunch is about to enjoy!) I have have finally finished painting everything. The recent hot weather has hardened the paint off nicely and up till last night I had managed not to scratch any panel fitting things back together.

My problems came with fitting the center brass hinge into the bonnet. This slides into position into turned up flanges on the underside of the two bonnets halves, an operation that seems to need about 3 pairs of hands to hold everything in the right place. Having got the hinge in place with a only few light scratches I tried to lock it in place by center punching the brass hinges where they fold round the steel flanges, unfortunately this resulted in cracking the paint of the top side, and a bonnet half that still slides fore and aft on the hinge as it opened. Is there any way of nipping the hinges up without using any damaging force? Has anyone else had this problem?

Pete Bishop


From: David Cochrane
Sent: 13 July 1999
To: Pete Bishop
cc: british-cars-pre-war
Subject: Re: A7 Bonnet hinge


> My problems came with fitting the center brass hinge into
> the bonnet. This slides into position into turned up flanges
> on the underside of the two bonnets halves, an operation
> that seems to need about 3 pairs of hands to hold everything
> in the right place. Having got the hinge in place with a
> only few light scratches I tried to lock it in place by
> center punching the brass hinges where they fold round the
> steel flanges, unfortunately this resulted in cracking the
> paint of the top side, and a bonnet half that still slides
> fore and aft on the hinge as it opened. Is there any way of
> nipping the hinges up without using any damaging force?

Having looked at the Top Hat saloon, can you bend down the ends of the folded bits of bonnet (where they protrude beyond the brass hinges) so that they can't move? If the bits stick out too far, you may have to cut out a tab to bend. You shouldn't have to bend it much. Hope this makes sense; give me a ring this evening if not.

Regards,



From: Pete Bishop
Sent: 15 July 1999
To: david cochrane
cc: british-cars-pre-war
Subject: Re: A7 Bonnet hinge

Thanks David. Trouble is my previous attempts to lock the hinges in place has bent them just enough to stop them sliding off, so I can't easily cut the necessary tabs. I have put the bonnet problem to one side for the moment waiting for one of those days when everything seems to go well as opposed to the current ones where every assembly operation seems to result in another scratch on the new paintwork!

Pete


From: David Cochrane
Sent: 16 July 1999
To: Pete Bishop
cc: british-cars-pre-war
Subject: Re: A7 Bonnet hinge

> Trouble is my previous attempts to lock the
> hinges in place has bent them just enough to stop them
> sliding off, so I can't easily cut the necessary tabs.

What about glueing it in place? It doesn't have to be very strong - you just need to introduce enough friction to stop it sliding about.


From: Pete Bishop
Sent: 16 July 1999
To: David Cochrane
cc: british-cars-pre-war
Subject: Re: A7 Bonnet hinge

Funny, I looked at the tube of Araldite last night and thought the same thing! I really need to get the bonnet apart again though to fix the dents I put in trying to bend the hinges, in which case I may be able to cut the tabs which would be a better solution. I will have a go at the weekend.

Pete


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