710 (160J) Tachometer connection help???

[dat_160j_77]

Hey guys,

 

I bought today a dashboard for my 710 Datsun with L16 engine. I want to replace mine because mine doesn't has a tachometer in it so here is my new dashboard

 

 

 

 

 

 

I really need your help guys in connecting this tachometer.

 

 

Thanks

[datzenmike]

Looks like the induction type used on the early 620s

 

Look at the 12:00 position on yours..

 

 

Looks like the same 4-5 wire on the 620...

 

 

 

Not sure but I think the 4-5 wire is the trigger for the tach. It simply loops through that connection ti induce a signal. Not at all sure if it's in series with the coil neg to points or in parallel with it. Datsunaholic might know.

 

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[dat_160j_77]

Thanks man, I found this picture should I do the same here, check the link below

 

 

 

 

 

My link

 

 

Thanks

[dat_160j_77]

Hey man, sorry I couldn't wait for your reply, I connected it and it worked, but its kinda laggy, its takes a long time to get to its original place, sometimes it doesn't and I have to shake the gauge to get it to the current engine rpm. Could it be fixed?

 

 

 

Thanks

[zerow]

Hey man, sorry I couldn't wait for your reply, I connected it and it worked, but its kinda laggy, its takes a long time to get to its original place, sometimes it doesn't and I have to shake the gauge to get it to the current engine rpm. Could it be fixed?

 

 

 

Thanks

You will have to look for a speedometer calibration near you. They have the proper tools to calibrate the tach. DO NOT do it yourself! You run the risk of ruining it. Good Luck!

[dat_160j_77]

You will have to look for a speedometer calibration near you. They have the proper tools to calibrate the tach. DO NOT do it yourself! You run the risk of ruining it. Good Luck!

 

 

Thanks man, I will see if I can find one. The problem was that there is so much dust in the tachometer, I sprayed a little gasoline on it and the niddle worked correctly (gets back to the current rpm instead of hanging where it reached), and thanks for the hint, PUSH ME LUCK!!!!!