Installing a tach

[zukijames]

On a vehicle that didn't come with one.. Can anyone point me in a derection on this.

My gf and I got a new tow rig it has no tach, I've driven with out one a lot but this is louder and I'm having a hard time telling where is at and I don't wanta over rev the old girl..

Is there a universal digital one that can just read with out being hooked to motor ?

If not where and How do I go about hooking it up ?

I know this is a super stupid question so thanks for even looking


Rig is a 1981 international s series with 446 gas engine if that matters

 

[chadschoon]

Yes you can. I believe they wire into the distributor

 

[skippy]

wow what kind of mileage does that thing get???

Depending on the setup you should be able to pull a tach signal off the coil or the distributor

 

[cjncustoms]

Yes it should come off the coil. Then just a switched 12v+ and ground.

 

[zukijames]

Mileage I'm guessing negitive 3 yes I said negitive !

But once we move to st George it won't be getting many miles put on it..

And later on we will probably sell it but keep the trailer
and find something more comfortable to tow with but we couldn't beat it for the price

 

[Cascadia]

So what's the real mpg?

 

[jinxspot]

Not sure of the make and model of your truck?

Search TinyTach in google for a few simple and cheap plug n play solutions.

Some motors the tach came off the alternator as well....

On my 6.2L diesel I had a sensor that I put on the harmonic blancer to wire in the tach...
http://www.alligatorperformance.com/isspro-r8900-tach-62l65l-diesel-p-4510.html

Or the super easy flywheel tach:
http://www.dakotadigital.com/index....ategory_id=-1/home_id=-1/mode=prod/prd129.htm

 

[zukijames]

So what's the real mpg?

The guy said 8mpg but I think negitive 3 is more realistic we will find out actuall mpg when we fill it up and drive it to st George.


Ryan the make and model is posed at the bottom of first post..
thanks for the links

 

[jinxspot]

Ryan the make and model is posed at the bottom of first post..
thanks for the links

Oh duh, missed that one.... Gas motor should be easy because it actually has a distributor. lol

 

[Hickey]

The tachs I have used in the past just need a signal from the negative side of the coil.