Bonnet release cable finally totally seized. - Motorhome Forums, Motorhome Discussion, Motorhome Chat

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post #1 of 8 (permalink) Old 10-09-2019, 18:58 Thread Starter
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Bonnet release cable finally totally seized.

Hymer B574 2002
After years of the cable being stiff despite attempts at lubrication; it has finally seized.
I have removed it following quite a bit of dash board dismantling. So far to my surprise, I have not managed to move it despite a drip feed of releasing fluid and substantial flexing manipulation along its length.

It looks as if a new cable is needed. I have put out a few feelers out but no response so far and I have searched the Fiat Parts Catalogue but failed to find the part.

Has anyone else been down this road?

Any advice as to where I can buy a replacement cable will be gratefully received.
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post #2 of 8 (permalink) Old 11-09-2019, 20:19
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I would try a decent cycle repair shop as itís basically a bike brake cable! Take as much as your old one as you can as a pattern.
A decent shop should be able to sort something out for you at minimal cost. If that doesnít prove productive try a boat chandlers, boats have LOTS of cables!

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It's who you share the journey with (even if like me, itís in a caravan!)
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post #3 of 8 (permalink) Old 12-09-2019, 17:28 Thread Starter
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Thanks for the response.


The Fiat spare is no longer available.
I found a very good supplier of Bowden cable bits: Carbuilder.com.
Have ordered inner, outer a a few end bits and I'm optimistic that I can fix it, cost about £23.
I took the precaution of pulling a messenger cable through the bulkhead as I withdrew the old one from the interior so hopefully the new cable will pull through easily.
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post #4 of 8 (permalink) Old 12-09-2019, 17:48
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Halfords sell both for future reference.

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post #5 of 8 (permalink) Old 12-09-2019, 19:05
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The best way to lubricate them on motorbikes (many years ago) was using a pressurised device - the cable + outer was sealed into the lower end of a small cylinder with a rubber grommet to seal, oil was then put in the cylinder, the lid screwed on and pressure was applied using a bike or foot pump, not much was needed and oil was forced through.

I have not seen one in years, but will have a look....

They are available on Amazon and EBay the best one is around £17.50 although others are available from around a fiver..

I put in "bike cable oiler" and got several suggestions. The "Mad4Bikes" Professional one looks very similar to what I described.

Remember Jo Cox and what she stood for.

Any comments above are only MY OPINION and should be read as that.

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Last edited by Penquin; 12-09-2019 at 19:13.
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post #6 of 8 (permalink) Old 18-09-2019, 21:16 Thread Starter
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Thanks for all the information.
The hydraulic oiler looks a useful bit of kit, previously unknown to me.
I've now replaced the cable with a self fabricated job.
For the bonnet release lever to self return the outer must be clamped at both ends. I re-used the fiat end at the dash end and fashioned a cable clamp on the bonnet end. Hopefully good now for another 17 years!
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post #7 of 8 (permalink) Old 18-09-2019, 22:53
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Just make totally sure that the cable clamp at the bonnet end is as tight as tight can be as that is the likely place for slippage to occur and if it does, the bonnet will stay shut as the cable will move through enough. If you can put a second clamp on that is less likely, or a blob of solder.....

I am a great believer in using a belt, braces AND a piece of string to hold up a pair of trousers..... 😀🤔
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Remember Jo Cox and what she stood for.

Any comments above are only MY OPINION and should be read as that.

http://www.leslezards.co.uk
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post #8 of 8 (permalink) Old 20-09-2019, 17:08
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My bonnet release cable also seized but it was long enough that I was able to cut the bad bit off and reroute the cable, now ok.
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