Tach/electrical acting up

Automotive powered airboat discussion.
Basin_Runner355
Southern Airboat Member
Posts: 58
Joined: Sun Nov 13, 2016 7:16 am
Location: St.martinville , Louisiana

Tach/electrical acting up

Postby Basin_Runner355 » Sat Sep 02, 2017 5:56 pm

I was doing some tidying up last week and my old shcool white running light on the back of the cage doesn't work so I cut the wire and taped it off and took the light fixture off well I used it this weekend went to take off and.y tach is now showing I'm turning over 6,000 rpms when I dint mess with prop And. Now when I turn on my running lights it blows a fuse?! Always something with an airboat any help would. Be appreciated
14ft diamond back zz4 355sbc 2:1 belt drive reduction with a 78 water walker falcons pitched at 5200

Scarecrow
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Joined: Sun Feb 05, 2012 12:01 pm
Location: west palm beach to sebring

Re: Tach/electrical acting up

Postby Scarecrow » Sat Sep 02, 2017 6:26 pm

Check your grounds.

Lwells
Southern Airboat Member
Posts: 248
Joined: Sat Nov 15, 2014 9:18 pm
Location: okeechobee

Re: Tach/electrical acting up

Postby Lwells » Mon Sep 04, 2017 7:36 am

I would think your hot wire to the light you took off is grounding against something since when you turn your lights on it blows the fuse but that would depend on whether the light you took off was wired on your switch with other lights. It may not have anything to do with tack problem but I agree with other post on tack.

Basin_Runner355
Southern Airboat Member
Posts: 58
Joined: Sun Nov 13, 2016 7:16 am
Location: St.martinville , Louisiana

Re: Tach/electrical acting up

Postby Basin_Runner355 » Wed Sep 06, 2017 9:25 am

Found my fuse blowing problem wire was cut and rubbing on the cage

Tach still acting up with you turn the key on it the needle jumps up to like 150 with out even starting the motor
14ft diamond back zz4 355sbc 2:1 belt drive reduction with a 78 water walker falcons pitched at 5200

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Rick McC.
Southern Airboat Member
Posts: 94
Joined: Wed Jan 11, 2017 10:14 pm
Location: Weeki Wachee, Fl

Re: Tach/electrical acting up

Postby Rick McC. » Wed Sep 06, 2017 11:13 pm

Basin_Runner355 wrote:Found my fuse blowing problem wire was cut and rubbing on the cage

Tach still acting up with you turn the key on it the needle jumps up to like 150 with out even starting the motor


Sounds like it's getting to be time for a new tach.

They don't last forever on boats.
"Sights are for the unenlightened."
Rick
http://guntipsandtalk.com


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