Lister Engine Forum

How to / DIY => Engines => Topic started by: BrianL on May 14, 2018, 07:34:57 PM

Title: Rev Counter
Post by: BrianL on May 14, 2018, 07:34:57 PM

I have an LD2 engine with no rev counter. Can anyone advise me on fitting one?

Title: Re: Rev Counter
Post by: dieselspanner on May 15, 2018, 12:01:12 PM

Easiest and cheapest way is to use a cycle speedo, all you need to do is find somewhere to stick the magnet, on a shaft, held with a few turns of insulating tape, and then make a bracket for the sensor, great for tuning and trouble shooting.

http://www.instructables.com/id/Tachometer-made-from-a-bicycle-speedometer-cycloc/

Says it all.

Great for a fast and dirty fix. it's got me out of trouble a couple of times

Nicer is to get a mate like mine to make you one with a Hall effect sensor, you can of course buy them..............

https://www.ebay.co.uk/itm/Digital-LCD-Laser-Photo-Tachometer-RPM-Tachometer-Measuring-Non-Contact-Tool-UK/121947924259?hash=item1c64a9a723:g:5NcAAOSwwvBZo9QD

Cheers Stef

Title: Re: Rev Counter
Post by: Barenburg on May 15, 2018, 02:57:03 PM

Now that is a great idea!

Wish I had thought of it...........

Thanks,  Bill A

Title: Re: Rev Counter
Post by: dieselspanner on May 15, 2018, 03:41:26 PM

Or,

If you are running a 12v alternator an after market gauge from Ebay (or from something down the scrapyard) that picks up it's signal from the 'W' terminal on the alternator would do it, tho' you might need recalibrate - ie stick something over the dial and draw new lines on it!

Cheers Stef

Title: Re: Rev Counter
Post by: BrianL on May 15, 2018, 08:53:08 PM

Thank you all, I will certainly have a go at the cycle speedo.

Title: Re: Rev Counter
Post by: guest23837 on June 01, 2018, 12:48:12 PM

https://www.ebay.co.uk/itm/Digital-LCD-Laser-Photo-Tachometer-RPM-Tachometer-Measuring-Non-Contact-Tool-UK/121947924259?hash=item1c64a9a723:g:5NcAAOSwwvBZo9QD

I bought one similar to this it actually came from the UK works really well. The reflective tape wasn't great but I got a foot of lorry marking tape for nothing in the motor factors thats a lifetimes supply