Tach issue, stator/regulator problem?

[bashr52]

I finally got my charging issue resolved on my 1979 85 horse chrylser. New universal regualtor/rectifier assembly is installed and working. My issue is the tach works great up until about 2200 RPM. That is as high as the gauge will read now. I do get full RPM out of it fine, but tach seems limited to 2200.... Could this be something with the new regualtor/rectifier? Could it limiting the readout of the tach wire somehow?

 

[Jiggz]

Re: Tach issue, stator/regulator problem?

Yes, it could be with the new regulator/rectifier unit. But there is a quick fix, switch the tach wire to the other ac wire or yellow wire in most force engines.

 

[bashr52]

Re: Tach issue, stator/regulator problem?

Yes, it could be with the new regulator/rectifier unit. But there is a quick fix, switch the tach wire to the other ac wire or yellow wire in most force engines.

Sorry for the delayed response, I had to wait until I was at the lake with the boat in front of me. I tried switching the tach to the other black wire from the stator, but tach still reads the same..

 

[Jiggz]

Re: Tach issue, stator/regulator problem?

Unfortunately, that is the only trick I know off because I did the same on mine. Anyways, try switching the yellow wires and then if the problem persists, try switching the tach wire again. If this doesn't solve the problem I'm not really sure what to tell you except check the tach with one yellow wire disconnected from the regulator. DON'T TOUCH THE WIRE WITH ENGINE RUNNING! And see if the tach is even working.

 

[bashr52]

Re: Tach issue, stator/regulator problem?

Unfortunately, that is the only trick I know off because I did the same on mine. Anyways, try switching the yellow wires and then if the problem persists, try switching the tach wire again. If this doesn't solve the problem I'm not really sure what to tell you except check the tach with one yellow wire disconnected from the regulator. DON'T TOUCH THE WIRE WITH ENGINE RUNNING! And see if the tach is even working.

OK will do. I know the tach works, is zero with engine off, and does read ok at RPMs below about 2200. That is just as high as it will go... IT would get up to 5000 or so before I switched regualtors which leads me to believe this is the issue.