Help Get My Tac working...please... (1 Viewer)

[VTCruiser]

So the last guage that i haven't go working since the swap is my tac. After drving the truck for about 3000 miles now, i have gotten used to it rev band but its about time i get the damn thing working.

Whats involved? (reminder, this is a '86 HJ60 with a '93 1HZ/H55F)
Are they electronic?
How do i connect it and where is everything located?

thanks!

 

[cruiser_guy]

Have you checked the sensor on the bell housing? They are often dead. It should have 400 ohms across the terminals.
Did you do the swap or did someone else? When I swapped the H55 from one truck with the H42 from another I brought one truck in to get the tranny swapped and the tranny shop didn't disconnect the sensor lead thus tearing it out of the sensor.

 

[beanz2]

The tach pick up is on the fuel pump, not on the BH as in the B engine. Not all 1HZ engines come with a tach sensor, but most JDM 1HZ's do. The FJ60 tach wouldn't work with the 1HZ sender but who knows if the HJ60 tach would.

Dave

 

[roscoFJ73]

Hi Dave ,did your tach sensor on the pump have a red and a brown wire.
I think one goes to the alt ,the other ? Any ideas?

 

[VTCruiser]

Ok i will check my fuel pump for the sensor. Now any idea where the 2H sensor was located so I might be able to find the tac wires?

Do y'all think I am wasting my time trying to get the old one to work? Should I just buy an aftermarket setup and be done? How hard are these aftermarket ones to install?

 

[beanz2]

Hi Dave ,did your tach sensor on the pump have a red and a brown wire.
I think one goes to the alt ,the other ? Any ideas?

The brown is ground, the tach signal is black wire with a red stripe. I think the other which is black with yellow stripe is the fuel shut off solenoid. We're talking the 1HZ right?

Dave

 

[beanz2]

Ok i will check my fuel pump for the sensor. Now any idea where the 2H sensor was located so I might be able to find the tac wires?

Do y'all think I am wasting my time trying to get the old one to work? Should I just buy an aftermarket setup and be done? How hard are these aftermarket ones to install?

Wasn't it on the left side of the bellhousing? I think it is well worth your time to see if it works. The tach you got is already paid for, right?

Dave

 

[VTCruiser]

I need more specfics as to what I am looking for. I looked all over the injector pump but could not find what would be a tac sensor. Can anyone tell me specifically where it can be found?

I have not had time to test my tranny harness for the tac wires.

Stickboy- how did you sovle your tac adaptation? Aftermarket? How hard are these to install?

thanks

 

[beanz2]

Gehn, there is a wire plug that runs towards the rear and slightly below the fuel pump, the tach sensor wires are in there. The sensor itself is screwed into the pump from the engine side. If you see wires between the pump and the engine, those are it. If your 1HZ came from a non-tach model, it won't have the sensor.

Dave

 

[Radd Cruisers]

Two wires on some instead of three, my guess is the third wire is for the tach.

Also not to steal the thread, but does the solenoid use a ground and hot wire to operate the fuel off on????

 

[beanz2]

I think the fuel solenoid only has one wire, but aaagh, a buddy borrowed my wiring diagrams!

Dave

 

[roscoFJ73]

My 1HZ has one wire from the solenoid to the +. It wont run unless there is power to it and I suppose its earthed through its contact with the motor.
The tach sensor has 2 blue wires that are spliced to a red and a brown wire.I looked at a few others and they were all the same on aussie spec 12v diesels/
.

 

[VTCruiser]

ok guys i'll check again....gotta love shade tree mechanics.... thanks

yes the solenoid is one positive (24v, in my case) lead. It will work with 12v (you can hear it click) but there is a slower activation.

 

[Stickboy]

For my tach cruiser_guy was kind enough to send me the guts of a 3b 12v tach to which I put the signal from my BH into after I swapped the 3b guts into the FJ60 housing. Hooked up a 12v lead to the tach, the ground, and the sensor lead and away she went.

My .02 but I think the aftermarket tachs look like crap in a cruiser. One of the first things I noticed in a 60 was how cool the little tach between the larger instrument clusters looked. I'm into effecient use of space and that fit the bill...... then again if you could get an aftermarket tach and put it in that'd be interesting....

-mike