Petrol Diagnostics

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Microcar 500cc 2001 - Non start - Fixed #

Posted by Pete Mutlow on November 30, 2010, 5:16 pm

Year of Manufacture *: 2001
Engine Size and Code *: 500cc

Evening All,

I would appreciate an insight into this. This vehicle is a non-starter (no HT). Strange looking animal and I do not think I have been to one before. It is 2 cylinders fired by a Fiat type coil and fueled via a carburettor. Vehicle broke down and customer replaced coil and ignition module. The ignition module came from a running donor car. I have found that I have power to the coil and no switching. My attention turned to the Crank Sensor but was unable to find one..(mind you I was grovelling in about a foot of snow under the car). However, there is a "thing" underneath the cam cover with 3 wires attached. If this was a fuel injected car I would take this to be a cam sensor. I have no life on these 3 wires with engine cranking. So is this where the ECU picks up the signal to get the car running? Also, this vehicle has according to the customer a magneto. I seem to remember from days of yore breaking down on a motorbike and found I had lost ignition to the coil because the magneto had broken up inside. I have not found anything useful on the tinterweb nor in the archives. Autodata does not list the vehicle. Hence the SOS here. Thanks.

Regards

Pete M

Re: Microcar - Non Start

Posted by Kevin Williams <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT1278' width='330' height='300' border=0 style='border:none;'> on November 30, 2010, 9:53 pm, in reply to "Microcar - Non Start"
Kevin Williams

Hi Pete The signal for spark comes from the hall sensor you found on the cam cover I have often found broken earths on these low down on bulkhead at back of engine On the hall sensor I think centre is signal and 12v and earth either side I have more info at work will revise tomorrow and post or if stuck give me a call on 01284 828421

kevi Williams

Re: Microcar - Non Start

Posted by Pete Mutlow <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT1569' width='330' height='300' border=0 style='border:none;'> on November 30, 2010, 10:30 pm, in reply to "Re: Microcar - Non Start"
Peter Mutlow

Evening Kev,

Many thanks for that.

Regards

Pete M

Re: Microcar - Non Start

Posted by Paul Winwright <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT5356' width='330' height='300' border=0 style='border:none;'> on February 22, 2011, 9:02 am, in reply to "Re: Microcar - Non Start"
Paul Winwright

Did you manage to sort this.As I haveone that stopped running at the the end of the MOT with same faults as yours.

Fixed #

Posted by Pete Mutlow on February 22, 2011, 10:16 am, in reply to "Re: Microcar - Non Start"
Message modified by board administrator February 22, 2011, 2:31 pm

Hi Paul,

I bumped into the guy who recommended this customer to me about 2 weeks ago and this vehicle has been fixed. Apparently, they found an earth wire somewhere under the bonnet that had come adrift. He cannot remember exactly where though. Sorry the info is a bit sparce but at least its a lead... of sorts.

Regards

Pete M

PS..Kevin seems to have hit on this in the previous post..

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