Vintage Diagnostic Tools

[MattK2]

I've had these tools for awhile and finally cleaned them up. I'm wondering if anyone knows much about these. It looks like the Niehoff T-49 can be connected to another device but information is nonexistent, and it was made in 1966. The Marquette 41-105 looks fully functional, but I haven't tried it out yet.

Anyone have any more info on the Niehoff and what it's connected to?

Sorry about the sideways pic, but I'm not seeing a quick way to rotate.

 

[haptiq]

I just took over as a high school Auto Tech Instructor and have been rummaging through the mess of tools and junk parts dating back to the 40's. I'm pretty sure I have seen both of those units in the loft. I don't know if I can really help you but I'll check tomorrow and see if I have an original box or instruction manual or the like.

 

[MattK2]

The Marquette has some basic instructions on the back. The Niehoff has a cut connector and looks like it need some kind of power source besides what's coming from the car it's hooked to.

 

[aircommuter]

The Niehoff is put in line with power feed to the car, that shunt on the end of the cable allows it to read the current flowing through it at a low rate that the meter can accept. The other one is for testing spark plug wire resistance and spark output.

 

[MattK2]

Yes, the power feed is attached to the alternator and the POS wire on the car is attached to the wing nut. The other two wires aren't giving me much to work with. One is cut, but I think it has an alligator clip for the ground. The last wire has an odd three pronged male plug that must've attached to another Niehoff device. That's my best guess until I find a user manual that shows exactly how it all comes together.

 

[MattK2]

Bump

 

[jessesandy]

How big/heavy is the Alternator tester ?
Hard to tell from the picture, but it doesn't look big enough to hold the passive resistors needed to load down a cars electrical system.
Maybe that is the "other device" you see connections for.

Going from the picture, anyway, it says "Alternator Tester".
Volt meter has green/good marked at 13.5v to 15v.
Then a current meter with a switch marked "test".
Is that a momentary switch that you have to hold ?

 

[kansei]

The Marquette unit is most likely from a set, such as the one pictured- a Dyna-Chek Gold Line Tune-Up Tester. Sorry for the horrible picture (flash reflections and all); it's the only photo I have of it at the moment. Most of my diagnostic testers are in storage right now.

 

[MattK2]

Definitely the same vintage. Very cool to see related tools.