Thanx Paul. I haven't gotten to the tach yet as I am planning to pull the
dash in the next coupla weeks to paint it and fix all it's oddities, ie,
burnt out lite bulbs, loose & dangling wires, etc.
I will let you know if your quidance is successful, but wanted to thank you
for responding.
I thought I had the list stumped for once when I saw no response the first
note and only yours the second note.
WELCOME TO ALL THE NEW SUBSCRIBERS
bruce@woodward-realty.com
----- Original Message -----
From: Paul Dolloff <pauld@ekpc.com>
To: Bruce Woodward <brucewoodward@kconline.com>
Cc: <bruce@woodward-realty.com>
Sent: Wednesday, April 07, 1999 3:03 AM
Subject: Re: Fw: Tachometer misreading big time
Bruce,
I converted to negative ground and my tach started to work but was
way off like yours. Here is what I did.
Remove the tach.
Carefully remove the glass and pull the guts of the tach out of the
metal housing.
Pull the connecting wires through the hole in the dash where the
tach was.
Correctly connect all of the wires back to the tach.
Get a wire with alligator clips on each end.
Connect this wire to a ground on the car and one of the threaded
posts which holds the tach in place.
Start the car with tach in hand and the tach should work.
Now, on the back of the tach you will see a round black plastic
cylinder with a slot for a screw driver on top.
Rotating this potentiometer will adjust the tach.
At idle, set the tach to read 10 to 12.
If you have to have the tach reading exactly right, you will need to
send it to a shop like Palo Alto Speedometer or Nicenger in New
York. Check the List Quest Archives for these guys' addresses.
Good luck and let me know how you came out.
Paul
>
> any ideas why my tachometer reads twice as much as it should? a pleasant
> 700rpm idle reads 1500, I'm redlining at approx 4000 rpm.
>
> Car had been halfa**ed converted or inadvertently converted to negative
> ground, and after putting motor back in after cleanup and painting of
engine
> compartment as well as welding in new floors and spring mount area, I
hooked
> it up as postive earth and was pleasantly surprised to find tachometer
> working, but with above mentioned problem.
>
> your thoughts are greatly appreciated.
>
> Great screensaver, Amy! Taking it to my real estate brokerage for the
> public to enjoy it also.
>
> bruce@woodward-realty.com
>
>
>
>
--------------------------------------------------------------
Paul A. Dolloff, Ph.D.
East Kentucky Power Cooperative
P. O. Box 707
Winchester, KY 40392-0707
606/744-4812 ext. 389 office
606/744-6008 fax
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