RPM gauge - How to add?

Once again I need help. I would like to add a RPM gauge to my truck but I am not sure how to go about doing it. I have a 250 straight six (orginal engine) that has never had a RPM gauge before. The guy at the parts store just gave me a dumb look when I asked him about it. Is it possible to add a modern gauge to the exsisting motor so that I can monitor the RPM? If you know how, please share ths info. with me.

Thanks.

 

the guy at the parts store was an idiot.go back to the store and get a tachometer.check the package to make sure it will work on a six cylinder.the tack instructions will tell how to adjust the tack for a six cylinder.then hook one wire to the plus side of the coil,one to ground,and one to the parking light fuse so it lights at night.

 

If you can find one that has a 90 degree display ( top half only) and the correct size, you can add a factory looking tach in the gauge cluster itself. It mounts in the circular area on the right side of the speedometer in the 64-66.

DVal

 

I knew I had a link to this

http://www.geocities.com/vpersh/Tach.html

DValentine

 

you hook one wire to a power sorce one wire to the ground and one wire to the negitive side of the coil. thats how i hooked mine up. i got my tach from autometer out of a jegs catologe and came with directions how to hookit up and how to switch it to you # of cylinders.
cowboy

 

Tachs hook to the neg. side of the coil. Make sure it has a switch to change the tach setting to 6 cylinder. Then there should be a light wire and a power source and a ground.

 

doh!thats right.

 

I'm using a Sunpro2 rpm tach for my 235 inline 6. I mounted mine on the top of the steering column. Green wire goes to neg on the coil, red for power, black for ground, and white for lights. On the back there is a switch for the cylinder selection 4, 6, 8. Click it on the "6", and you should be ready to go.
David

 

Thanks! I used the link you suggested and now have a working tach on my truck. It does match the other gauges well. I only incountered one problem. SuperPro Tach #1235 now has a white interior case so, if you use this tach, you'll have to take it apart and paint the white black so that it will match the instrument panel. (The front of the tach is still black and blends well with the instrument panel.) An extra step but one that is well worth the time. I'll post a picture of the finished instrument panel as soon as I'm finished.