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Wedge List / Re: rally car?
« Last post by Dr C K Smith - on October 14, 2017, 10:19:42 AM »
Alistair is fine - his car is probably a write off which is a shame as it was

a wonderful bespoke TR7V8

Dr C K Smith

Sent from my iPhone 6 - 64GB

Wedge List / rally car?
« Last post by tencate on October 14, 2017, 10:15:16 AM »
(BBC) A rally driver and his co-driver escaped unharmed when their car

overturned in the Jersey Rally.

Alastair Flack and Mick Starkey barrel-rolled twice when their V8 Triumph TR7

hit a bank at Rue de Pignon on Friday.

Race organisers believe the car slid on chestnuts, and oil left from a

previous crash at the same spot.



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Wedge List / Re: Postscript to side marker bulb holders
« Last post by Jack Brooks on October 14, 2017, 09:49:10 AM »
Perhaps this should be a group buy?

Personally, I don't have any broken ones, but I have only touched one of

these in the past few years. Having a spare or two would be a good thing,

but not really worth pursuing Mr. Craddock.


Wedge List / Looking Glass
« Last post by tencate on October 14, 2017, 09:29:45 AM »
OK, I need to send you Looking Glass, our latest diagnostic tool.

Unplug the ECU, plug in the box and get out the voltmeter. You measure the

various sensors THROUGH the wiring harness. That way you can easily find out

if a sensor isn't connected or dodgy, injector + Power resistor values, etc.

Call me today if you get a chance. I'm up, will be pulling out the injectors

on the Beige car today.



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Wedge List / disconnect the throttle pot
« Last post by tencate on October 14, 2017, 09:22:20 AM »
it's not needed, it's a performance tweak, 3 pin connector, unlatch and




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Wedge List / Re: 1980 FI Throttle Pot
« Last post by on October 13, 2017, 07:36:15 PM »

Check the contacts at the FI coolant temp sensor.  If these get loose or

corroded you can get the symptoms you describe.  Don't omit looking under the

rubber boot between the connector and the harness.  On mine one of the wires

had become disconnected from the connector and was making intermittent


Wedge List / Re: 1980 FI Throttle Pot
« Last post by Randy Tess on October 13, 2017, 07:25:40 PM »
Hummm.B  OK.B  I did disconnect the throttle pot and it made no difference.B

So that answers that.

Right now, my car will barely start, and when it does it seems to be running

on 4 cylinders, or 6 or whatever. It idles for squat.

Then, this morning, out of the blue I started it and it idled perfectly fine.

No issues at all for 3 minutes.B  I touched the throttle and it died.B  Been

messed up all day now. B

The only thing I changed was a rebuild on an alternator that I just put in.B

The alternator seems fine, but can a bad alternator cause all of this?

I replaced the Lumention PMA50 amplifier.B  No change

New coilb&no change

Internet diagnosticsb&.fun stuff I know, but thanks for the guidance


Wedge List / Re: 1980 FI Throttle Pot
« Last post by on October 13, 2017, 06:55:46 PM »

Two things.  One, try disconnecting the throttle pot and driving the car.  If your problem goes away then you have confirmed a bad pot.  If it still runs bad, then your problem is elsewhere.  The car will run almost normally with the pot disconnected it will just have slower throttle response.  That's because when the ecu detects a sudden change in throttle position, it pulses all the injectors at once - sort of like what an accelerator pump does in a carburetor.


 Second, the throttle pot can be repaired by repositioning the wiper arm about 1/16 inch out so it's contacting a fresh part of the resistor substrate.  I recall that it's held in place with little plastic rivet like things.  Remove these and use small screws to reposition it.  

Let us know how this gets resolved.

Wedge List / Re: 1980 FI Throttle Pot
« Last post by Randy Tess on October 13, 2017, 06:31:51 PM »
Hummmm.  There is no spring in mine.  I just had it apart and back together again.

Wedge List / Re: 1980 FI Throttle Pot
« Last post by "Jim Altman" on October 13, 2017, 06:29:21 PM »
I think Rimmers has one for a land rover, maybe the SD1, that is the same as

to function, but the spring is loaded in the wrong direction.  That spring is

weak and TR8's throttle return is much stronger.  I have ignored the weak

spring and used one that way for years. The wiring at the plug needs to be

reversed to account for turning in the opposite direction.

Jim Altman
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