4.3l mercruiser tachometer testing electrical

[jales4]

Hello,

Can you please tell me how I would test my tachometer to see if I am getting power?

He wants to know if his problem is his tachometer or his sender and doesn't know how the current goes.

Sorry if this question is horribly put, but I am writing this for my Dad, who does not have internet access.

I think the motor is a '99.

Thanks in advance, JAn.

 

[Bondo]

Re: 4.3l mercruiser tachometer testing electrical

Ayuh,...

Welcome Aboard....

Service Manual #25 GM V6 1998 - 2001
Opens 1st 3 sections. You need to open, download, and save other sections.
http://www-alt.mercurymarine.com/mne...25/25covr1.pdf

That should cover it....

 

[JustJason]

Re: 4.3l mercruiser tachometer testing electrical

I don't think this will help you.... but I test tach's with another tach. I have 3 different style tach's, and 1 of those is just an analog style shop tach.

It's this one....
http://www.sears.com/shc/s/p_10153_12605_00902165000P

I've had it for years and it works fine, and i think i got it on sale in the 25$ area. If your going to work on motors.... you really should have at least 1 type of shop tach, as boat tach's are known to be unreliable.

 

[jales4]

Re: 4.3l mercruiser tachometer testing electrical

Hi Bond-o

Thank you for the link - I've saved and downloaded it - but I don't know how to find the other sections for downloading. Please help. Thanks, Jan.

 

[chiefalen]

Re: 4.3l mercruiser tachometer testing electrical

Go to the top of the forum adults only and click on it theres the link.

I'm not Bond-o but i hope you don't mind me telling you where it is.

Good luck young man let us know how it works out.

 

[Don S]

Re: 4.3l mercruiser tachometer testing electrical

He has a link to the manual Chief, just doesn't know how to open the section he wants.
When you open the link, scroll to the Manual Outline page (the page with the big blue numbers on the right side)
Then locate the section LETTER you want to download. In your case, you want to click on 4D, instrumentation.