Bonnet Support Arm.

Bodywork, interior and exterior trim and glass, bumpers, etc.
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Bob White
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Bonnet Support Arm.

#1 Post by Bob White » Fri Apr 14, 2023 4:45 am

Hi,
I have recently purchased a 1978 Triumph 2500S and the Bonnet Support Arm bracket on the bonnet is a bit of a mess. Would anybody have any ideas on upgrading this bracket.

Bob White.

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valencia
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Re: Bonnet Support Arm.

#2 Post by valencia » Fri Apr 14, 2023 5:48 pm

Hello,
could you post a picture of the support arm assembly so we can see what the damage is. Corrosion and fatigue through the metal flexing are usually the main issues with the bonnet support. Mine pulled itself off the bonnet after many years so it was a case of more substantial welding when I repaired it, factory spot welds don't seem to be sufficient. Perhaps another member can confirm how the connection to the bonnets were made originaly, does the T-shaped bracket that the arm hinges get spot welded to the surface or does it sit inside/behind the strenghthening section ?
DSC_0079[1].JPG

torque2me
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Re: Bonnet Support Arm.

#3 Post by torque2me » Fri Jun 23, 2023 10:04 am

Bob White wrote:
Fri Apr 14, 2023 4:45 am
Hi,
I have recently purchased a 1978 Triumph 2500S and the Bonnet Support Arm bracket on the bonnet is a bit of a mess. Would anybody have any ideas on upgrading this bracket.

Bob White.
I've got this same issue and hope we can sort it between us. Thanks Valencia for your input. Will also e-mail the SOC tech guru and see if they have any thoughts on this.

Kev

johnnydog
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Re: Bonnet Support Arm.

#4 Post by johnnydog » Fri Jun 23, 2023 8:18 pm

One other contributing aspect for the damage was that the 2000 bonnet in its open position leaned a lot further forward than was really necessary, which put unnecessary strain on the stay mounting, especially in windy conditions! The Stag bonnet remained a lot more vertical in its opened position, which reduced the strain on the stay mounting.
I do know of members that have shortened the stay or have cut out an additional 'stop' for the existing stay to allow the bonnet to rest more in a vertical position.
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1967 Mk1 2000 in Gunmetal Grey
1969 Mk1 2000 in Royal Blue
1970 Mk2 2000 in Valencia Blue
1972 Mk2 2.5 PI in Triumph White
1973 Mk2 2.5 PI in Sienna Brown
1976 Mk2 2500S in Carmine Red

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