Installing a tach

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guy48065
Posts: 478
Joined: Wed Jul 18, 2012 4:32 am
Location: Atlanta, MI

Installing a tach

#1 Post by guy48065 » Wed Jul 25, 2018 7:59 am

My current pontoon (96) and previous (79) have no gauges at all. I have a fish locator that can tell me my speed but I wanted at a minimum a tach & warning lights.
In order to make this work I first had to replace the electrical cable that runs from the console to the outboard. The PO chopped all the "unnecessary" connectors off when the carpet was replaced.

Once I finished that I then had to bore a 3-3/8" hole in the dash for the tach. Why do they make them an odd size like that? I could borrow a 3-1/4" or 3-1/2” hole saw but instead I used an adjustable woodworking "flycutter". I went VERY slow and carefully so it wouldn't skitter around or smack my knuckles and the hole came out perfect.

I think I also need tilt/trim & volt gauges.

Now that I know my speed AND rpms I see I'm almost 1000 rpm under max at WOT. Now I have to read through all the "prop selection" threads!
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Mark
1996 Sweetwater 180EX + Johnson 40
Rush Lake, Atlanta, MI

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bansil
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Joined: Tue Nov 01, 2016 4:10 pm
Location: Watâ'gi lake...Beautiful Waters

Re: Installing a tach

#2 Post by bansil » Wed Jul 25, 2018 3:32 pm

Do you have a link for that tach?

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guy48065
Posts: 478
Joined: Wed Jul 18, 2012 4:32 am
Location: Atlanta, MI

Re: Installing a tach

#3 Post by guy48065 » Thu Jul 26, 2018 9:19 am

I bought it off eBay, $100 new but no box or instructions. It's a Teleflex "Lido" for Johnson/Evinrude with System Check lights. Mod. 64477F.
I'm pretty sure Sierra 64477FP is the same gauge.
Mark
1996 Sweetwater 180EX + Johnson 40
Rush Lake, Atlanta, MI

Brad750
Posts: 15
Joined: Thu Apr 21, 2016 4:04 am

Re: Installing a tach

#4 Post by Brad750 » Mon Aug 13, 2018 5:22 am

Nice install!
2003 JC Neptoon Dolphin 24'

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Henpecked
Posts: 88
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Location: Ellis County, TX

Re: Installing a tach

#5 Post by Henpecked » Tue Aug 28, 2018 9:13 pm

That’s a good looking gauge background. Is that leftover flooring? It goes well with the gauge.

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guy48065
Posts: 478
Joined: Wed Jul 18, 2012 4:32 am
Location: Atlanta, MI

Re: Installing a tach

#6 Post by guy48065 » Wed Aug 29, 2018 6:41 am

That's the original dash panel. Supposed to look like fiberglass I guess.
Mark
1996 Sweetwater 180EX + Johnson 40
Rush Lake, Atlanta, MI

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