Model Boat Mayhem - Forum

Dry Dock / Shipyard: Builds & Questions => Pleasure boats, Sports, Race, Power and Leisure Boats: => Topic started by: engine mad on February 15, 2012, 06:24:18 PM

Title: rev counter
Post by: engine mad on February 15, 2012, 06:24:18 PM
hi does anyone know wher to point a digital rev counter on a boat to get a reading i have just purchased one and cant get a reading i put the tacho on a two bladed setting but not much happened thanks john
Title: Re: rev counter
Post by: john s 2 on February 15, 2012, 06:52:34 PM
The tacho that i use needs a reflective strip to be stuck to the rotating part. On my boats i use the coupler with a short piece of tape lengthways. This works for me. What do your insructions say? Or did you buy it used? John.
Title: Re: rev counter
Post by: gwa84 on February 15, 2012, 07:14:15 PM
normaly you would put 2 lines on opesit sides of the flywheel but that depends what type of counter it is  :-))
Title: Re: rev counter
Post by: bulldog1966 on February 15, 2012, 09:48:58 PM
you can get them now on ebay for 19 and have wire you rab round ht lead
Title: Re: rev counter
Post by: bulldog1966 on February 15, 2012, 09:51:26 PM
http://www.ebay.co.uk/itm/Digital-Laser-Photo-Non-Contact-Tachometer-RPM-Tester-99-999-RPM-LCD-Display-/180807590444?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&hash=item2a18f8e22c hears one to give you ex theres many many more you just have to look for them or go to argos and spend 80 for one
Title: Re: rev counter
Post by: bulldog1966 on February 15, 2012, 09:56:09 PM
http://www.ebay.co.uk/itm/RC-tachometer-rpm-recall-highest-rpm-26cc-engine-hpi-baja-zenoah-boat-/260902138807?pt=Motors_Car_Truck_Parts_Accessories&hash=item3cbefab3b7  given you three opstions its up to you what you want
Title: Re: rev counter
Post by: Jon on March 10, 2012, 11:21:48 AM
Hi, mine uses reflective tape too (or a white paint line), bought it from CPC quite a while ago, but I image there are cheaper on eBay
http://cpc.farnell.com/_/at6/tachometer-digital/dp/IN05250

I've found it really useful and have a piece of reflective tape permanently on my Huco coupling, so I can check at a glance if I think something is wrong (which nowadays it seems it usually is!)

Jon