Tach ?

Aircraft powered airboat discussion.
Post Reply
Bociphus
Southern Airboat Member
Posts: 21
Joined: Sun May 06, 2018 9:08 pm

Tach ?

Post by Bociphus » Wed May 09, 2018 9:47 pm

I’m new to owning a airboat, my tachometer doesn’t work , my ? Is how important is it , do I need to get a new 1 before I ride anymore , I don’t haul tail every where I just go fast enough to get up and stay on plane, nothing crazy I always have my wife and 3 kids with me , I do plan on gettin 1 just not sure what kind I need and where to get it from yet still studying on it any advice or help is appreciated

Chicken Man
Site Supporter - II
Site Supporter - II
Posts: 61
Joined: Sat Jan 16, 2010 11:04 am
Location: Macclenny, Florida

Re: Tach ?

Post by Chicken Man » Thu May 10, 2018 3:26 am

If it's mechanical any of the airboat makers will have them. They run from 60 to 100 dollars for the gage, 15 or so for the cable

Gary S
Site Supporter - I
Site Supporter - I
Posts: 1603
Joined: Wed Mar 03, 2010 3:30 pm
Location: Redlands

Re: Tach ?

Post by Gary S » Thu May 10, 2018 6:04 am

No you don't need rush out and buy a tach. If it was a oil pressure gauge I would say wait, but a tach is only telling you what your turning.

GMAC 76
Site Supporter - V
Site Supporter - V
Posts: 1236
Joined: Sun Jan 04, 2009 11:12 pm
Location: LAKE PLACID FL.... LAKE ISTOKPOGA

Re: Tach ?

Post by GMAC 76 » Thu May 10, 2018 8:21 am

I know a lot of guys that don't run a tach.....the do however us a tach to set their prop so that wot is within safe limits ...then they know they are not over revving the engine

Bociphus
Southern Airboat Member
Posts: 21
Joined: Sun May 06, 2018 9:08 pm

Re: Tach ?

Post by Bociphus » Thu May 10, 2018 9:39 am

10 4 I appreciate the info :usa:

Bociphus
Southern Airboat Member
Posts: 21
Joined: Sun May 06, 2018 9:08 pm

Re: Tach ?

Post by Bociphus » Thu May 10, 2018 9:43 am

10 4 I appreciate the info, from what I gather I should change the cable and tach together :usa: :usa: :usa:

User avatar
Slidin Gator
Site Supporter - IV
Site Supporter - IV
Posts: 656
Joined: Sat Feb 03, 2018 11:33 pm
Location: Jupiter Farms, Florida

Re: Tach ?

Post by Slidin Gator » Thu May 10, 2018 10:57 am

The cable screws onto the back of the Tach, so you can change cable or tach separately. Unless the tach is obviously broken, the issue could be at the engine drive end, the cable itself or the tach itself.

Image
I grew up thinking I-10 was the Mason Dixon line.
1986 Airboat Engineering Inc., 14' Marsh Master. Refreshed narrow deck, SV O-540, 72” NGQ. A Bob Stossel original.

One Eyed Gator
Southern Airboat Member
Posts: 1271
Joined: Wed May 30, 2007 11:33 am
Location: Ocala,Fl

Re: Tach ?

Post by One Eyed Gator » Thu May 10, 2018 11:41 am

Some motors also required a tach reversing adapter. It would be on the motor side of the tach cable.

User avatar
mojoe
Southern Airboat Member
Posts: 953
Joined: Thu Jul 23, 2009 8:55 pm
Location: Catfish Motel

Re: Tach ?

Post by mojoe » Thu May 10, 2018 12:35 pm

Chicken Man wrote:If it's mechanical any of the airboat makers will have them. They run from 60 to 100 dollars for the gage, 15 or so for the cable

More like $15/foot!! :shock: not per cable :roll:

Replacing them independently of each other is no problem.
Mark 7:9

flcracker9
Site Supporter - III
Site Supporter - III
Posts: 522
Joined: Mon Aug 11, 2014 10:05 pm
Location: Loxahatchee

Re: Tach ?

Post by flcracker9 » Thu May 10, 2018 3:04 pm

Got my Stewart Warner tach from Summit Racing online. mechanical tachs come in several different ratios (under driven - over driven), need to make sure you get the right ratio (ask me how I know)
12' Open Palm Beach, IO-0470-L 260hp, 72" NGQ

User avatar
riverrat1
Southern Airboat Member
Posts: 260
Joined: Sun Oct 06, 2013 5:44 pm

Re: Tach ?

Post by riverrat1 » Sat May 12, 2018 8:08 am

You can take your old Cable to a truck stop and they can make you a new one or classic airboats

Sent from my XT1635-01 using Tapatalk

Bociphus
Southern Airboat Member
Posts: 21
Joined: Sun May 06, 2018 9:08 pm

Re: Tach ?

Post by Bociphus » Sat May 12, 2018 12:43 pm

10-4 I appreciate the help

Post Reply

Return to “Aircraft Power Only”