TVR RV8 Hotwire engines

TVR RV8 Hotwire engines

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Discussion

Jack Valiant

Original Poster:

1,894 posts

237 months

Saturday 13th September 2014
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Hi Guys.... bit of a long shot but I am after a replacement hotwire stepper motor connector for the 500 Gredge. Given the heat in the engine bay these connectors become brittle. So when I popped it off to replace the stepper motor recently the little plastic locking clip broke off. So wondered if anyone had one on an old loom etc that they would be willing to exchange for some beer tokens?

Pictures of the offending article below:





Thanks in advance

Chris

Jack Valiant

Original Poster:

1,894 posts

237 months

Sunday 14th September 2014
quotequote all
Thanks but it is a issue as I have tracked intermittant idling problems to the plug security so needs to be done and would prefer to do it properly fella!

Jack Valiant

Original Poster:

1,894 posts

237 months

Sunday 14th September 2014
quotequote all
mk1fan said:
Chris,

How about soldering on some wires and moving a new waterproof plug to somewhere cooler?
Yeah may do that if I cannot track down a direct replacement.

Tony - Thanks ..... Also tried running the car with the vacuum path blocked, the 500 Serp would not start well, so would prefer to do it properly as I know this is the issue. I have taped up the joint for now and its fine so will look out for a original replacement or alternative. Might try the Chim or Griff forums as well.

Chris

Jack Valiant

Original Poster:

1,894 posts

237 months

Tuesday 16th September 2014
quotequote all
Hi John

The stepper motor, or idle control valve, is a mechanical device which opens and closes controlling air feed into the plenum at idle or low revs. If it becomes contaminated or fails then the engine idle can / will fluctuate. The number of steps or position of the valve is controlled by the 14CUX ECU. My understanding is that on the later serpentine engines it it needed. Mine certainly will not start easily or idle with it disabled in the closed position.

Chris