How to stop the spring coming off

Need some help with a technical problem - ask away and let's see if we can all help.

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neilbardsley
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How to stop the spring coming off

Post by neilbardsley »

This spring keeps coming off. I tried to put a cotter pin on but it didn't work.

Any other ideas?Image

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Last edited by neilbardsley on Sun Aug 10, 2025 1:49 pm, edited 1 time in total.
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Hugo 356
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Re: How to stop the spring coming off

Post by Hugo 356 »

You got the right spring Neil? Looks like they used 3 on the A:

23 644 511 511 00
23 644 531 547 01
24 644 531 542 00 (Small
Valid up to:
20.9.57)

https://assets-v2.porsche.com/gb/-/medi ... 59_KATALOG
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Nine One One
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Re: How to stop the spring coming off

Post by Nine One One »

File the groove out so the spring end fits into it better, then try and crimp that end further together?
neilbardsley
Nurse, I think I need some assistance
Posts: 8620
Joined: Mon Apr 16, 2012 4:31 pm

Re: How to stop the spring coming off

Post by neilbardsley »

Hugo 356 wrote:You got the right spring Neil? Looks like they used 3 on the A:

23 644 511 511 00
23 644 531 547 01
24 644 531 542 00 (Small
Valid up to:
20.9.57)

https://assets-v2.porsche.com/gb/-/medi ... 59_KATALOG
Thank you. I'm not sure I do as the first time I tried to order on it was closed on both sides!

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“A REMINDER. I would be grateful if those members who have borrowed bits from me in emergencies (e.g starter motor, oil cooler, etc) would return them and/or contact me”. – Chris Turner RIP
Lightweight_911
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Re: How to stop the spring coming off

Post by Lightweight_911 »

.

Have you compared it to the other side ?

If so, does the new spring look correct ?

What stops the one on the other side from slipping off the 'pin' ?

You could try using an appropriately-sized starlock washer pressed on to the end of the pin:

https://www.ebay.co.uk/itm/256873921493 ... R4zCp9GSZg
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neilbardsley
Nurse, I think I need some assistance
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Re: How to stop the spring coming off

Post by neilbardsley »

I haven't dared open up the other side. I agree the most logical thing to do is take the spring off there and get a similar one but they are so difficult to get on.

Yes I ordered some star washers just before starting this thread.

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911hillclimber
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Re: How to stop the spring coming off

Post by 911hillclimber »

Are the springs in question correct?

When I worked, we made about 8 million car door locks a year just in the UK plant and tested the designs to death, some to over 250,000 operations under all conditions experienced in a car door.
Springs never failed (other bits did). We used top quality materials and manufacture, they were safety critical.
At the time we were 'allowed' 13 parts per 1,000,000 lock failures.

The right spring should fit and work. We did not use fancy assembly tools applying high loads to install them.
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neilbardsley
Nurse, I think I need some assistance
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Re: How to stop the spring coming off

Post by neilbardsley »

The simple answer is that the normal springs don't seem to fit. I measured the broken one when I took it off but can't find the thread.

Today after much playing I think I've sorted it. I loosened the ruler for the window glass. Then installed another spring. Which was much stronger but the door button couldn't move. I reinstalled the old spring with the clip then tried to push on one of the fasters Andy suggested but it was between two sizes so not a solution. Then I realised I could adjust the clip so it was shorter and tightened the spring on the latch. This worked and I'm happy the spring isn't jumping off. However, the pusher from the door button wasn't long enough. I couldn't figure out how to adjust so put a brake valve cap on! Now working much better.

I tried to clean the window runner batch and repaint but I'm not sure it's looking much better.

Rust inhibitor sprayed inside the door. I will do a couple of test drives before I put the door card back onImageImage

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“A REMINDER. I would be grateful if those members who have borrowed bits from me in emergencies (e.g starter motor, oil cooler, etc) would return them and/or contact me”. – Chris Turner RIP
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