Chimaera Newbie –Throttle cable replacement.
Chimaera Newbie –Throttle cable replacement.
Author
Discussion

TunnelSoundtrack

Original Poster:

37 posts

205 months

Saturday 23rd April 2011
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My ’99 400 had not been used much prior to my purchase.
The operation of the accelerator pedal is fine, and engine responds immediately when I lift my foot. However the effort required to operate the pedal seems inordinately excessive (not looking forward to my first long journey). I have compared the effort required to operate the pedal with a work colleague’s well serviced 500 and this compares to all mass produced cars I have driven.

Having seen posts on this forum relating to cable breakage, I purchased a new cable from my nearest TVR parts source, Racing Green.

Has anyone replaced a complete cable/outer assembly, not just the internal wire?
Looking at the RG cable, it looks as if it will have to be fitted pedal end first through the wing. I have a 24k /£650 service coming up and if possible, I would not have this added to bill.

Can anyone provide a reasonably detailed description of how to change out the complete cable?

MADMAX2

2,336 posts

225 months

Saturday 23rd April 2011
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ive just fitted a complete new cable on mine what a difference it makes dont forget old ones stretch and you dont notice a slow power loss

i undid the R clip and 2 nuts by the plenum i heated a spanner and bent it 90 degrees so i could get access to the bolts (so much easier saves time and lots of swearing) then fed cable out then i took off the accelerator pedal to ease out the cable its easy that way as you can line the new cable in the groove in the top of the pedal and close it over slightly i greased the new cable and fitted the plenum side first then fed it down through to the pedal area and made sure the old white plastic gromit was out so push the new one in to secure it on the body above the pedal then connected it to the pedal and fitted pedal back on made final adjustment and resealed the rubber gromit so water doesnt end up in the footwell

it only sounds easy when you have done it but i must say its worth changing i have got that snap effect back it just wants to go like hell from standing start!


hope that helps


MAX


Edited by MADMAX2 on Saturday 23 April 12:35

pbaker43

268 posts

199 months

Sunday 24th April 2011
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I was told to use the old one as a guide for the new cable as trying to thread the cable through can be a PITA so I taped the new cable to the old one pulled the whole lot through., before fitting I also held the cable vertical and tipped a mixture of copper grease and oil down the inside until it dripped out this was to help with lubrication of the inner cable. I noticed on the old cable that the nylon insert on the old cable had a deep groove cut into it this was the cause of my stiff accelerator hence the oil was to help the cable run over the nylon.

Where the cable clips into the top of the pedal can be difficult, I was unable to open the top of the peddle plus space was limited so I ended up stripping out the accelerator peddle, which I also greased.
For fitting the cable to the side of the plenum, I removed the bracket where the cable fits with the big nuts made life easier plus the set up for the slack was easier.

Hope this helps

Philip

TunnelSoundtrack

Original Poster:

37 posts

205 months

Tuesday 26th April 2011
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Many thanks for the prompt responses, I have not plucked up enough courage to start the job yet as I have to use the car this and next weekend. I will share my (hopefully good) experience when completed.

TunnelSoundtrack

FreeLitres

6,128 posts

208 months

Wednesday 27th April 2011
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Does anyone know roughly how much it might cost for a TVR dealer to do this job during a service?