wiring loom

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roymck
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Post by roymck » Fri Mar 15, 2019 4:50 pm

So where are your earths now?



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Post by philhoward » Fri Mar 15, 2019 5:56 pm

roymck wrote:
Fri Mar 15, 2019 4:50 pm
So where are your earths now?
Not there by the sounds of it :mrgreen:


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Post by roymck » Fri Mar 15, 2019 7:13 pm

philhoward wrote:
Fri Mar 15, 2019 5:56 pm
roymck wrote:
Fri Mar 15, 2019 4:50 pm
So where are your earths now?
Not there by the sounds of it :mrgreen:
Yea good reply :P



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Post by peter freeman » Mon Mar 18, 2019 1:44 pm

Just a quick update as I have been out playing today for a short while. Instruments have come back to normal but only after I confirmed it was the -ve that was intermittent - came good again while I was playing. Engine does not turn - looks like the high torque starter is faulty as I tried starting it with power from another battery and it turns but very slowly and the battery is known to be good - trouble is the motor is now out of guarantee. With the battery on the car connected and the other battery in parallel it turns but just as slowly.bugger.



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Post by peter freeman » Wed Mar 20, 2019 3:55 pm

OK for the moment at least it has beaten me - new starter fitted today and no difference. If I power the starter by another battery the engine turns about 1/4 way then stops and the jump leads get warm. The engine turns easy enough by hand. So new starter and different battery and its just the same - this problem was intermittent for a few weeks before becoming permanent - I thought it was the battery isolator as it came good after the isolator screw had been loosened then re-tightened. Isolator has been by-passed. So the battery and starter have been replaced with no effect and the engine turns ok by hand that only leaves the starter ring on the flywheel in my mind and I'm in no hurry to take the starer off again this side of Easter - anyone got any suggestions because at the moment I've run out of ideas.



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Post by philhoward » Wed Mar 20, 2019 4:04 pm

If it was a ring gear issue it's unlikely that it's all affected so turning the engine 30 degrees or so would have it on a different bit of the gear? Only way it can all be excessively damaged is if the pinion gear failed to return correctly and burred all the teeth.

Have you tried replacing both high current cable (earth and feed) in their entirety? I've had similar issues with a dodgy main earth cable before.


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Post by DARK STAR » Wed Mar 20, 2019 4:27 pm

Me too, the fault was in the (lack of) connection to the terminal(s) although it looked ok from the exterior.


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Post by peter freeman » Wed Mar 20, 2019 4:42 pm

New cable down to the starter and a cable directly from the battery -ve to the engine. I have been sitting thinking about it and realised I have had similar problems before once in the 70s with a NSU when hot the starter would not turn the engine - the fix for this was to slacken the starter and re-tighten it. The second time I have had something similar was one of our 1800TIs and the fix for that was to fit a old starter instead of the new one. I wonder if the new starters are too tight to the flywheel ring. I think I will try loosening the starter a bit and trying again. The end fix for this would be to get the original starter working again - so far I have jut left it in the garage and not looked to see what is wrong with it.



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Post by roymck » Wed Mar 20, 2019 5:53 pm

Not just Scimitars but a lot of people have problems with these new style high geared starters , failing not long after fitting and even not working from new .



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