Daddylonglegs
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| posted on 31/3/11 at 10:37 AM |
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Rev Counter
I have a VDO rev counter fitted and as I finally got the engine running at the weekend I had a chance to check other things too.........like the rev
counter, which doesn't seem to work 
There are 3 connections, one to earth, one to +12V and the third which has a ~ sign which I assumed is from the trigger to the points (i.e. -ve on the
coil)?
Nothing doing though so maybe I got it wrong.
Any ideas/suggestions?
Thanks guys.
It looks like the Midget is winning at the moment......
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r1_pete
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| posted on 31/3/11 at 10:53 AM |
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Are you points or electronic ignition? a tach designed for points often wont work with electronic.
When you say coil -ve, you do mean the points side? which is how mine was wired before MJLJ.
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Daddylonglegs
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| posted on 31/3/11 at 10:54 AM |
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Points, and yes it's the points side of the coil.
It looks like the Midget is winning at the moment......
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daviep
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| posted on 31/3/11 at 11:05 AM |
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Any chance of a bit of back ground to the tacho?
Is it new?
Has it ever worked?
Are there any small switches on the back - how are they set?
A lot of VDO tacho's are capable of sensing RPM from the alternator AC wave - which would tie in with the ~ symbol on the back.
Have a look HERE
Cheers
Davie
“A truly great library contains something in it to offend everyone.”
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Daddylonglegs
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| posted on 31/3/11 at 11:09 AM |
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Dave,
No history, I bought the guages as a job lot around 2 years ago IIRC so not really sure. Makes sense that the sinewave symbol could be for alternator
connection, I'll ave another look tonight and pop a piccy of the rear up on here.
John
It looks like the Midget is winning at the moment......
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