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Hand Held Tachometer
Posted: Tue Jun 20, 2006 1:07 pm
by jmclean
Does anybody know where I can get one of these?
Has anybody got one, and if so, what brand/model is it?
I gather there's generally 2 types: inductive (a sensor clamps onto spark plug cable), or wireless (a sensor picks up electrical noise from spark plug).
There's plenty of optical tacho's on eBay, but they're not suitable.
Cheers, Jim
Posted: Tue Jun 20, 2006 7:27 pm
by David Lahey
Jim
My workshop type dwell/tachometer is a cheap Asian made Lucas brand and uses a clip on the plug lead for the tacho. It is 30 years old and still going strong and was bought from a car parts supplier (Bumper to Bumper I think). There are so few vehicles still running with ignition points now that I suspect that this sort of instrument would be quite rare in shops nowadays.
Fancy looking electronic car engine tachos that mount to the car dash are available from car accessory shops.
If its for the idle speed of your 4RT did you think of using an optical tacho on the front sprocket and correcting the reading for the gearing reduction?
David Lahey
Posted: Tue Jun 20, 2006 11:20 pm
by The Hell Team
I use a great little one (wireless) that is designed for Chainsaw maintainence. About 1/3 the size of a pack of ciggies.
Posted: Thu Jun 22, 2006 8:23 am
by jmclean
That's the critter I'm after.
Any idea where I can get one ?
Does it have a brand or model on it ?
Posted: Thu Jun 22, 2006 8:53 am
by The Hell Team
STIHL - no model number. I just got it at the local mower shop "the Big Mower" Chatswood.