1984 F250 6.9 Tachometer

[hunterboone05]

I am looking for a 1984 f250 tach for a 6.9 diesel original equipment.

 

[FarmerFrank]

How bad do you want one? I got one extra but it's closer to the "not for sale" price. Just too hard to find

 

[hunterboone05]

Pretty bad. How much would it take for you to part with it?

 

[Agnem]

Does your 84' have the correct injection pump gear housing to accept the tach probe? You'll need that too if not.

 

[hunterboone05]

The truck has everything but the one that they put in here was for gas. Is there anyway that I could call you or you call me?
It would be much easier for me to tell you my setup. I bought this truck a year ago for my boys and I have been restoring it.
It is in great condition but it bugs me that the tach doesn't work. The tach that is in there now is for gas so it isn't reading correctly. Just found that out.

 

[hunterboone05]

If you have time to call me, my number is 618-694-4552.
Thank for your messages.

 

[hunterboone05]

I did put a new sensor on the motor and my name is Tim Morris

 

[david85]

Your other option is to use a dakota digital signal converter and use the current tachometer. You'll never go all the way to 6000 RPM of course, but you can still get a gasser tach to work if you really wanted to. Another option is to take a signal off the alternator.

http://www.dakotadigital.com/index.cfm/page/ptype=product/product_id=126/

Still a bit spendy though.

I ended up making a mag pickup circuit for the diesel ranger a couple years ago. You want to talk about rare - a diesel tach for a ranger, now that's rare!

The ranger tach also had a calibration resistor on the back of the board that allowed me to calibrate the RPM range to anything I wanted. I don't know if the F-series tachometers have it but I would assume so. Electronics back then was much easier to play with.

Does your current tachometer actually show a reading when the engine is running?

 

[hunterboone05]

Yes I do have a reading on the current tach. I will checkinto the dakota digital converted.
Thanks!
Tim

 

[david85]

Yes I do have a reading on the current tach. I will checkinto the dakota digital converted.
Thanks!
Tim

I don't know if this will help you, but here's how I was able to modify the ford ranger tachometer:

http://www.therangerstation.com/forums/showthread.php?t=135668

Its possible you might be able to simply recalibrate the gasser style tach by swapping out a calibration resistor, but like I said, I haven't messed with the F-series tachometers to this degree yet.

 

[hunterboone05]

Can I call you this afternoon?

 

[david85]

Check your PM...