K301 Tach

[R Bedell]

The problem is, the last time I searched, was coming up with theses specs:

* Single cylinder application
* 2" hole Diameter mounting
* 0-4000 RPM Range
* Analog type
* 12VDC

I could not find anything that met all those specs.

[twoton]

This is the closest I found,

http://www.egauges.com/SearchResults...&Submit=Search

[OldCubby]

Originally Posted by twoton

This is the closest I found,

http://www.egauges.com/SearchResults...&Submit=Search

These are close. A few days ago I found a tach that was the same size as kirks w/4,000 rpm. Can't remember where I found it. I've even though about getting a tach and relabeling the face to match what the correct rpm's were.

[darryljs]

I saw these on ebay.

http://tinyurl.com/n7q8q2z

and saw these from Walmart.

http://tinyurl.com/lo7ofb8

[twoton]

You notice that in Dave Kirk’s,” Building a Hot-Rod Kohler K301”;

http://www.kirkengines.com/downloads...ohlerPartI.pdf

On the bottom of page 11, “This shows the right side of the engine where the Mercury outboard voltage regulator replaces the stock item. This contains the tach driver circuitry for the instrument panelmounted Datcon tachometer.”

I believe that different tachs are triggered by different means. Some like a timing light, “inductive tachs” may be listed as being for 2,4,6 or 8 cylinder engines but may, ( Please correct me if I'm wrong here) be used in other cylinder configurations, like single cylinder, as long as it is being triggered from the proper source.

There’s this one,

http://www.ebay.com/itm/VDO-Cockpit-...-/251504700247

don’t know how these are triggered.

And from Datcon;

http://www.datcon.com/en-US/Products...chometers.aspx

part way down on the page, P/N 106461.

[OldCubby]

Originally Posted by twoton

You notice that in Dave Kirk’s,” Building a Hot-Rod Kohler K301”;

http://www.kirkengines.com/downloads...ohlerPartI.pdf

On the bottom of page 11, “This shows the right side of the engine where the Mercury outboard voltage regulator replaces the stock item. This contains the tach driver circuitry for the instrument panelmounted Datcon tachometer.”

I believe that different tachs are triggered by different means. Some like a timing light, “inductive tachs” may be listed as being for 2,4,6 or 8 cylinder engines but may, ( Please correct me if I'm wrong here) be used in other cylinder configurations, like single cylinder, as long as it is being triggered from the proper source.

There’s this one,

http://www.ebay.com/itm/VDO-Cockpit-...-/251504700247



don’t know how these are triggered.

And from Datcon;

http://www.datcon.com/en-US/Products...chometers.aspx

part way down on the page, P/N 106461.

I'm going to look into this Mercury outboard voltage regulator with the built in tach circuitry.

[OldCubby]

Does anyone know of someone on this site that has a Dave Kirk Tach? Was there any part numbers on the tach and voltage regulator? I found a marine tach that looks just like Dave Kirks.....just unsure of the voltage regulator and any other parts he added. anyone?

[R Bedell]

Was there any part numbers on the tach and voltage regulator?

When a Vendor makes a part (or product) for a "Private Label" it is not uncommon to use a Part Number designated by the Private Label or use none at all. This may not bare any fruit.

[OldCubby]

Originally Posted by R Bedell

When a Vendor makes a part (or product) for a "Private Label" it is not uncommon to use a Part Number designated by the Private Label or use none at all. This may not bare any fruit.

yea, makes sense. maybe even some close up pics of the front/back of both Tach and regulator to assist in the search.

[OldCubby]

Originally Posted by R Bedell

When a Vendor makes a part (or product) for a "Private Label" it is not uncommon to use a Part Number designated by the Private Label or use none at all. This may not bare any fruit.

So, Mr. Bedell. You wouldn't happen to know how many pulses per revolution the stator on a Quietline puts out would you? Possibly how many Hertz?

After some studying.....I think may have found a Tach that'll work with the Quietline series of tractors and newer due to the Stator aka alternator. A few things I need to iron out yet, though.

Another quick question....the K301aqs engine use's points as the firing system to the spark plug. But those points are fired off the timing of the cam. So, it doesn't have a wasted spark? Am I accurate to assume this?