Tach Doesn't Work

[altnt]

I have a 98 suntracker pontoon with a 3.0 merc inboard, there is a few things i need help with. the tach does not move and i don't know how to determine if it is a wireing problem or the gauge itself. Also about engine oil changes, i cannot see a way to get to the oil pan plug and was wondering if those dipstick tube pumps work. Thanks for any help. Al

 

[Bondo]

Re: Tach Doesn't Work

Ayuh,..... Welcome Aboard,.....

and was wondering if those dipstick tube pumps work.

Ayuh,... That's How it's done......

the tach does not move and i don't know how to determine if it is a wireing problem or the gauge itself.

Ayuh,....

Get yourself a Multi-meter,+ Check.....
The Tach get's it's signal from the (-) side of the Coil....

 

[Don S]

Re: Tach Doesn't Work

Pumping the oil out of the dipstick tube is "How It's Done". You don't need to stick a tube into the dipstick tube, just attach the pump to dipstick tube and pump it out. Just make sure you run the engine and warm the oil up first.

As far as the tach goes. If you have good power and ground at the tach and the sender wire (gray) from the coil to the tach has continuity, you probably have a bad tach.

 

[altnt]

Re: Tach Doesn't Work

man that was fast. THANK YOU for the quicks replies. This is my first time here and apologize for reposting questions already answered in this forum. I will do some more reading in the future before posting. Thanks again Al.