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Bus Discussion => Bus Topics ( click here for quick start! ) => Topic started by: superpickle on May 01, 2007, 09:45:54 AM

Title: Bus Tachometer ? What kind, Who has one ?
Post by: superpickle on May 01, 2007, 09:45:54 AM
My bus has NO tach. I would like to put one on it.
It has NO Fuel guage either..  :o what can be done.. besides a Stick down the spout  ;D

Thanks: Pau.....  :-*
Title: Re: Bus Tachometer ? What kind, Who has one ?
Post by: Dallas on May 01, 2007, 10:54:20 AM
Paul,

The Tach I used is a 4000RPM electronic marine tach from VDO. I used a Detroit Diesel Tach generator to drive it because I still have a 12V generator, not an alternator.

Your bus should have a huge alternator on it with one terminal marked "R". You can run many of the electronic tachs from that terminal. I believe you'll have to set the tach for 12 pulses, but I could be wrong.

Isspro, VDO, Keinzle, Stewart Warner, and many others make a tach available.

I hope this helps.

Dallas
Title: Re: Bus Tachometer ? What kind, Who has one ?
Post by: Busted Knuckle on May 01, 2007, 11:25:52 AM
All the Setra's I've ever been in have them! All though the other day when we were having trouble with the tach in the 45'er I called Setra's tech support # and the guy told me they'd quit putting tachs in them because of all the headaches they caused? ? ? So I dunno what's up with that! But As Dallas points out they are hooked to the "R" terminal on the altenator, as to what setting. I dunno! BK  ;D ;D
Title: Re: Bus Tachometer ? What kind, Who has one ?
Post by: ChuckMC8 on May 01, 2007, 11:47:15 AM
Super-Pickle: What kind of bus do you have?
Title: Re: Bus Tachometer ? What kind, Who has one ?
Post by: superpickle on May 01, 2007, 04:51:58 PM
Quote from: ChuckMC8 on May 01, 2007, 11:47:15 AM
Super-Pickle: What kind of bus do you have?

http://www.matthewfarmery.net/gonermobile/documents/23.html
Title: Re: Bus Tachometer ? What kind, Who has one ?
Post by: RTS/Daytona on May 01, 2007, 05:55:32 PM
Detroit Diesel Delco gear driven 50DN
   270 Amp 24 volt alternators "R" Terminal hookup
   The "R" terminal output is 12 volt -
   Most  6V92TA's are: (2.93 gears & 6 pulses per Revolution=17.58 pulses/rev)
   A few  6V92's can be(2.75 gears & 6 pulses per revolution=17.7  pulses/rev)
   Older GMC 8V71's can be(2.29 gears & 6 pulses per revolution=13.74 pulses/rev)     

caution - The action of some regulators do make the Tack "bounce a little" when changing charging modes

Pete RTS/Daytona
Title: Re: Bus Tachometer ? What kind, Who has one ?
Post by: LegalEagle82 on May 01, 2007, 07:47:22 PM
Anyone know what pulse settings I might need/have with an eagle/ 8v71 / 5 speed manual, as I don't know my gear ratios at this time.  I wouldn't mind adding a tach also.

Thanks...

Title: Re: Bus Tachometer ? What kind, Who has one ?
Post by: superpickle on May 01, 2007, 08:16:30 PM
Quote from: RTS/Daytona on May 01, 2007, 05:55:32 PM
Detroit Diesel Delco gear driven 50DN
   270 Amp 24 volt alternators "R" Terminal hookup
   The "R" terminal output is 12 volt -
   Most  6V92TA's are: (2.93 gears & 6 pulses per Revolution=17.58 pulses/rev)
   A few  6V92's can be(2.75 gears & 6 pulses per revolution=17.7  pulses/rev)
   Older GMC 8V71's can be(2.29 gears & 6 pulses per revolution=13.74 pulses/rev)     

caution - The action of some regulators do make the Tack "bounce a little" when changing charging modes

Pete RTS/Daytona

Ya know, I DO have a Pulse problem in the power somewhere. The lights Puls, the Speedometer Pulses ??
I do belive shes a 6V71, could be Wrong, and she has a power problem on hills.. Verry slow.. not much Get UP and go off the line.. ??
Paul...
Title: Re: Bus Tachometer ? What kind, Who has one ?
Post by: TomC on May 01, 2007, 11:05:28 PM
Even though I have the 50DN and did replace the regulator with a digital one, it still pulses, although quite a bit less than with the transistorized regulator.  I have a mechanical drive off the blower that I can use a synchronized generator for the tachometer. I believe it would be the most accurate.

I too did not have a fuel gauge.  When I pulled the fuel tank to install the intake and return for the generator, I really lucked out in that there were two 5 screw round panels already to go.  I modified one for the generator pickup and return and bought an adjustable fuel sender that screwed right into the 5 hole mount.  Would suggest a zero voltage being empty with full voltage being full-are the simplest.  Good Luck, Tom,C
Title: Re: Bus Tachometer ? What kind, Who has one ?
Post by: muddog16 on May 02, 2007, 03:32:59 AM
TomC,

Where did you get your digital regulator for your DN50?

Pat