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Throttle pedal spring

PostPosted: Mon 27.07.2009, 23:01
by ashm
So I'm ordering a replacement throttle pedal spring, since my existing one was broken, with unpleasant consequences for the pedal feel.
Having measured the remaining part of the existing spring and poked around a few spring specialists I've found a similar part, but I've got to order a minimum of five. Anybody else need one? About £2.77 each...
Adam

Re: Throttle pedal spring

PostPosted: Tue 28.07.2009, 09:26
by Specky
I've got a spare pedal box, would you like the spring off it?

TTFN

Re: Throttle pedal spring

PostPosted: Tue 28.07.2009, 10:12
by ashm
Thanks for the offer, but I should be fine as I've ordered 5 anyway.
The spec is as follows:

Outside Diameter 12.700 mm
Wire Diameter 1.244 mm
Maximum Load 44.480 N
Free Length 38.099 mm
Rate 1.27 N/mm
Maximum Length 70.103 mm
Initial Tension 3.914 N
Material MW
Number of Coils 12.9
Finish ZINC PLATE PER ASTM B633

If anyone is interested in comparing one of these to an intact original to confirm that they behave similarly, let me know. I suspect my original will have loosened up slightly over the last 18 years, and I only had part of it to test for spring rate.

Cheers,
Adam

Re: Throttle pedal spring

PostPosted: Thu 30.07.2009, 18:46
by Nobby
go on then, If you have one going.

cheers
Nobby

Re: Throttle pedal spring

PostPosted: Thu 30.07.2009, 22:41
by rip
I'll have one too. It's one of the few things I've not had to replace yet :roll:

Re: Throttle pedal spring

PostPosted: Fri 31.07.2009, 07:49
by BFG in the BRG
Oh Oh,

group buy :banana:

Yes please, I am in no dire need of one but spares are always good

(Sorry about creating the list - I'm just that kinda guy) :roll:

1. Ashm
2. Nobby
3. Rip
4. BFG in the BRG
5.



Kind regards

BFG

Re: Throttle pedal spring

PostPosted: Sat 01.08.2009, 17:13
by ashm
Well, they've arrived and as expected the spring was a pain to install. Still, it's in now and the pedal feels much better, even if my fingers feel much worse... it appears to be a good match for the (now unavailable) original.
Those on the list, if you pm me your addresses I'll post them out.

Since I still have a little slack in my throttle cable I'm going to need a new one. Faced with paying £37.65 for the Lotus version, complete with plasticky pedal fixings and limited adjustment range, I'll probably make up my own for about £20. Do we reckon there'd be interest in doing a batch?

Ad

Re: Throttle pedal spring

PostPosted: Sun 02.08.2009, 18:29
by Nobby
ashm wrote:Well, they've arrived and as expected the spring was a pain to install. Still, it's in now and the pedal feels much better, even if my fingers feel much worse... it appears to be a good match for the (now unavailable) original.
Those on the list, if you pm me your addresses I'll post them out.

Since I still have a little slack in my throttle cable I'm going to need a new one. Faced with paying £37.65 for the Lotus version, complete with plasticky pedal fixings and limited adjustment range, I'll probably make up my own for about £20. Do we reckon there'd be interest in doing a batch?

Ad

Hi Ad, you have a PM

Darn just replaced my throtle cable with an original. I have kept the old one as an emergency spare.

Good luck with a group buy, £20 is a bargin so is sure to spark an interest.

Thank you
Nobby

Re: Throttle pedal spring

PostPosted: Sun 02.08.2009, 18:36
by dapinky
ashm wrote:I'll probably make up my own for about £20. Do we reckon there'd be interest in doing a batch?


Is this a good place to run a list, or will you be wanting a new thread in the Group Buys????

Ahh, what the heck - lets start one anyway.......

1) dapinky
2)

Re: Throttle pedal spring

PostPosted: Sun 02.08.2009, 22:54
by rip
dapinky wrote:
ashm wrote:I'll probably make up my own for about £20. Do we reckon there'd be interest in doing a batch?


Is this a good place to run a list, or will you be wanting a new thread in the Group Buys????

Ahh, what the heck - lets start one anyway.......



1) dapinky
2) rip

Re: Throttle pedal spring

PostPosted: Mon 03.08.2009, 09:27
by ashm
Hmm... ok, I guess there may be some interest.

What I'll do is prototype a cable and test it, then find a volunteer to check it fits their car. After that I'll either make up the cables myself or have the component supplier make them if there are more than I can handle in my limited spare time.

The current plan is to use teflon lined conduit with a black pvc cover, but I could do stainless steel braided conduit as an option. Other colours of standard conduit might be available. The throttle end will be similar to stock, but the pedal end will have a galvanized quick-release clevis pin, possibly with some additional length adjustment if there's room.

I'll start a new group buy thread when I'm happy with the prototype.

Ad

Re: Throttle pedal spring

PostPosted: Tue 11.08.2009, 11:18
by ashm
Thanks guys, hope they come in handy someday!
Adam