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digital rpm gauge question

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douglist(at)macnauchtan.c
Guest

Posted: Sat Nov 22, 2008 6:44 pm Post subject: digital rpm gauge question

At 14:35 -0800 11/22/08, keithmckinley wrote:

 	  Quote: 	
		  

<keith.mckinley(at)townisp.com>

I purchased an MGL E-3 digital engine gauge to display EGT. The 

gauge is capable of displaying rpm as well.



Since there is a single wire to from the unit (for rpm) I would 

think it is impossible to show the rpm on both mags as well as 

individually during a mag check. I can connect to the P-lead of 

either mag and get an indication but it is only for that mag of 

course.


	


If you get a different reading from two mags, both of which are 

connected to the same camshaft, you're not measuring RPM, you're 

checking for a bad mag. You could put a double throw switch in the 

line.

-- 



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