S4 bonnet problem

PostPost by: Bitsilly » Sun Oct 22, 2023 2:04 pm

Thanks Richard, it will all help.
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PostPost by: ElanDNA » Sun Oct 22, 2023 3:18 pm

Bitsilly wrote:I have a replacement bonnet for my Sprint but it has a depression in it.
Someone suggested it is missing the bonded in metal support.
I thought that was only on the +2’s.
If there is supposed to be one could some kind person please post a photo?
Or supplier, in fact any help appreciated.
I’m currently looking for an old bonnet to replace the new one but this may sort me out!
Cheers

I have a lightweight hood. It has a steel tube laminated into it.
I exposed it and cut into it several times. Then point by point
welded with the MIG welding machine. This way I have the top of the hood
to match the body exactly, then re-laminated it.
P16.25.JPG and

P10.jpg and

Cheers
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PostPost by: Bitsilly » Thu Nov 02, 2023 4:48 pm

I couldn’t get a new bonnet made in time for my paint shop dates.
Also couldn’t find a second hand old one.
Luckily SJ had the bar with hook in stock so I will glass it in.
I don’t think I need to cut and weld it as I could bend it but it looks to be formed really well.
Thanks to everyone for the help and pictures.
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PostPost by: 661 » Fri Nov 03, 2023 4:08 pm

If you do put a strengthening reinforcement in, keep it away from the forward end of the cam cover as headroom is precious in that area.
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PostPost by: Bitsilly » Fri Nov 03, 2023 4:22 pm

Cheers, I have never had tha engine and bonnet together!
Mine will end up as per the red one above.
It is a sprint ribbed cam cover.
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PostPost by: Bitsilly » Fri Nov 03, 2023 4:25 pm

Thinking about it, I guess you mean the trailing edge , in which case there is no bar there.
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