1983 35hp Johnson pole count for tach install

[mphelle8vld]

I have a 1983 35hp Johnson model number J35ECTS and would like to hook up a SS White 0-8000rpm tachometer. I'm hoping someone out there can let me know how many poles this model alternator has, the options on the back of the tach are 6,8,10,20.

 

[mphelle8vld]

Re: 1983 35hp Johnson pole count for tach install

^Bump...

 

[rodbolt]

Re: 1983 35hp Johnson pole count for tach install

if its a 3 wire rectifier set it for 12 poles or six pulses, if its a 4 wire rectifier set it for 10 poles or 5 pulses. then check the tach for accuarcy with an inductive pick up tach. most are close but occasionally they are in left field someplace.

 

[Goodoleboy]

Re: 1983 35hp Johnson pole count for tach install

Set it on six!<br /><br />Good luck!

 

[mphelle8vld]

Re: 1983 35hp Johnson pole count for tach install

Thanks for the quick replies, my rectifier has 4 wires so I'll set it to the 10 pole position and get it back in the water for a test. Back soon!

 

[Goodoleboy]

Re: 1983 35hp Johnson pole count for tach install

I should have said my 87 40 horse is set to six. I assumed your 83 35 would be the same.<br /><br />I shouldnt be goin around sumptin things...sorry bout at!<br /><br />Good luck!

 

[mphelle8vld]

Re: 1983 35hp Johnson pole count for tach install

The 10 pole position worked great on the 83 35hp, I'm keeping my eye out for a handheld optical tach to check it's calibration. Thanks to all.