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8 & 10 cyl Bristol cars Type 407 onwards - restoration, repair, maintenance etc

408 front subframe / crossmember removal

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Old 24-01-23, 08:24 PM
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Join Date: Oct 2014
Location: Florida / Nova Scotia
Posts: 266
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I took the second spring out today.

I looked at the spring pans. They need proper cleanup that may reveal cracks but I could see no sign of any today. Amazingly, the lower spring seats both seem to be reusable. The upper wedges and spring seats are just not there at all. I do have new ones to fit when I reassemble.

Try as I might, I could not get the spring pan to lower staying parallel to the wishbones (see pic) but it came down ok anyway.

I know the Spax part numbers for shocks but can anybody identify this Koni that was fitted?

David
Attached Images
File Type: jpg 4. Spring pans (Copy).jpg (124.9 KB, 20 views)
File Type: jpg 5 Left shock (Copy).jpg (111.7 KB, 18 views)
File Type: jpg 2 Left spring in process (Copy).jpg (79.8 KB, 18 views)

Last edited by dwomby; 24-01-23 at 08:32 PM.
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Old 24-01-23, 08:52 PM
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Join Date: Mar 2021
Location: Norderstedt Germany
Posts: 109
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Hi David,

My 411S5 was equipped with the same Koni shock absorbers. Maybe it is still the original, factory fitted, shock. I searched the internet today, but could not find any reference about Bristol and Koni shocks.

Looking at your spring pan, I can see some corrosion around the center hole. Get it sandblasted and then repair it. The spring pan is made from a two layer steel material and moisture can penetrate between the two steel layers.

Regards

Thomas



Quote:
Originally Posted by dwomby View Post
I took the second spring out today.

I looked at the spring pans. They need proper cleanup that may reveal cracks but I could see no sign of any today. Amazingly, the lower spring seats both seem to be reusable. The upper wedges and spring seats are just not there at all. I do have new ones to fit when I reassemble.

Try as I might, I could not get the spring pan to lower staying parallel to the wishbones (see pic) but it came down ok anyway.

I know the Spax part numbers for shocks but can anybody identify this Koni that was fitted?

David
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