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Throttle cable- UK cars

Here’s where to discuss anything specific about your standard(ish) car or something that applies to the model in general.
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TR Tony
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Throttle cable- UK cars

Postby TR Tony » 20 May 2014 14:06

Some years back, in an effort to cure a sticky throttle, I changed the throttle cable on my June 81 built FHC. The replacement works fine but it is quite a bit shorter than the original cable. The original had a yellow jacket & was routed via a clip fixed up by the brake proportioning valve.

I can't find that original cable among my boxes of bits now. I have seen a few other late cars with this longer cable but never seen one for sale. Does anyone know if the longer cable is in fact the same as the longer 160cm USA spec cable RTC2922, or is it a differnt part altogether?

Tony
ImageImage
<font size="1">1981 TR7 FHC Cavalry Blue
1980 TR7V8 DHC Jaguar Regency Red - sadly sold!
1977 TR8 FHC EFI Factory development car Inca Yellow</font id="size1">

saabfast
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Postby saabfast » 20 May 2014 18:50

I changed the throttle cable in mine at the weekend - from long to short. I found that the long one was sticky and difficult in traffic. The new one is a yellow Alexander NOS one (32" I think). Funny thing was that the long one felt smoother out of the car but the new one is much better for driving.
I think the long one was about a foot longer, will measure at the w/e if I remember.
Alan
Saab 9000 Stg 1 (now passed to son for his family car)
Saab 9000 2.3 FPT Auto (now gone that others might live)
Saab 9000 2.3 LPT Auto (sold on, wish I had it back)
Saab 9-5 2.3 Vector Auto Estate
'81 TR7 DHC
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Hasbeen
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Postby Hasbeen » 20 May 2014 22:55

Many years ago, in a far distant galaxy A company was silly enough to give me a Mini as a company. What a horrible thing it was. Fortunately they took it off me, & gave me a real car, after they discovered I was getting only 4000 miles out of the front tyres.

But I digress. The fools at the BMC dealership I was obliged to take it to for service, [remember this was every 1000 miles back then], insisted on squirting oil into both ends of the throttle cable every service.

Within a few days, a little dust would have joined that oil, & the throttle would become sticky. Squirting more oil, STP, or any other substance in there merely changed the degree of sticking, never curing it.

There was only one cure. You had to remove the cable from the car, wash it out with petrol, let it dry, them puff a bit of dry graphite powder in there. No amount of remonstration with the service advisors could ever stop this annoying practice.

It was of course a result of using cheap cables. Quality cables have a plastic sheath both inside & out. These slide smoothly, but BMC used a cheap thing with no inner plastic lining, just like the ones we get today, which caused the annoyance.

If you search you should find a cable fabricator, who makes control cables for the Morse controls on boats. There are hundreds of different lengths in these, all requiring custom lengths. They use quality cable.

I found one in Brisbane who had the smaller diameter cable required for an accelerator, who fabricated one for my 7 while I waited. That was 9 years ago, & it is still stickiness free.

Hasbeen

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