Tachometer bouncing then nothing

[SV STENTATO]

Originally Posted by newhaul

where are you hauling out? I'm in Tacoma

It sounds to me like a loose wire at one end or the other .check clean and tighten all electrical to alternator and gauge .

I’m going through and checking my connections. I’m in Tacoma too at Browns point. We’re planning on getting hauled out at Swantown in about a week from now.

[newhaul]

Originally Posted by SV STENTATO

I’m going through and checking my connections. I’m in Tacoma too at Browns point. We’re planning on getting hauled out at Swantown in about a week from now.

why all the way down in Olympia? Hylabos is reasonable and allows owner work.

They full?

[crashley]

Mine does that when the battery is fully charged
When it starts playing up turn on some lights and see if it comes good

[SV STENTATO]

Originally Posted by newhaul

why all the way down in Olympia? Hylabos is reasonable and allows owner work.

They full?

They would t allow us to do the amount of sanding we wanted to do there so we decided Swantown. We’ve also had a lot of people tell us that Hylebos were not easy to work with.

[newhaul]

Originally Posted by SV STENTATO

They would t allow us to do the amount of sanding we wanted to do there so we decided Swantown. We’ve also had a lot of people tell us that Hylebos were not easy to work with.

ok just wondered

Never had an issue myself but I am a vendor

[SV STENTATO]

Thank you everyone for all the advice! I will post an update as soon as I’m finished troubleshooting (connections, voltage output from the alternator, etc). Also I finally found a decent manual for our westerbeke 33 which I’ve been looking for some time now, as the original technical manual leaves a lot to figure out on your own. Here’s a link to the pdf Incase anyone is looking for this manual https://www.westerbeke.com/technical%20manual/43440_rev2_4cylinder_tech_man.pdf

[newhaul]

Originally Posted by SV STENTATO

Thank you everyone for all the advice! I will post an update as soon as I’m finished troubleshooting (connections, voltage output from the alternator, etc). Also I finally found a decent manual for our westerbeke 33 which I’ve been looking for some time now, as the original technical manual leaves a lot to figure out on your own. Here’s a link to the pdf Incase anyone is looking for this manual https://www.westerbeke.com/technical...r_tech_man.pdf

bad link

[Wotname]

Originally Posted by newhaul

bad link

Hmm... it worked here (but I'm down under).

[newhaul]

Originally Posted by Wotname

Hmm... it worked here (but I'm down under).

works in my quoting of the post just not the post itself must be my tablet.

[curtis742]

I had the same thing happen twice. First time it was a loose belt. The belt should be tight enough so that the alternator pulley cannot be turned by a bare hand at all. The second time the water pump froze up intermittently causing the same symptoms.

[SV STENTATO]

So did some more poking around, correctly tensioned the alternator belt, checked voltage output from alternator (23-24?) seemed weird, I also test voltage at the back of my tach from; alternator input to ground and got 0 volts. I have the westerbeke admiral gauge cluster. I also have ”cruiser equipment” silver bullet 105A alternator and looks to be a cruiser equipment regulator (unfortunately “cruiser equipment” has gone out of business and I have not been able to find much info on these parts).With the engine running I show no more than 12V on my gauge cluster even though it seems the alternator is putting out juice. Looks like I have some more searching/researching to do. Also I have two gel house batteries and a separate cranking battery.

[newhaul]

Originally Posted by SV STENTATO

So did some more poking around, correctly tensioned the alternator belt, checked voltage output from alternator (23-24?) seemed weird, I also test voltage at the back of my tach from; alternator input to ground and got 0 volts. I have the westerbeke admiral gauge cluster. I also have ”cruiser equipment” silver bullet 105A alternator and looks to be a cruiser equipment regulator (unfortunately “cruiser equipment” has gone out of business and I have not been able to find much info on these parts).With the engine running I show no more than 12V on my gauge cluster even though it seems the alternator is putting out juice. Looks like I have some more searching/researching to do. Also I have two gel house batteries and a separate cranking battery.

check with the guys over at fisheries supply on lake union they usually can get it sorted out.

[SV STENTATO]

Thanks, I may have to go up there this week any how.

[Wotname]

Originally Posted by SV STENTATO

So did some more poking around, correctly tensioned the alternator belt, checked voltage output from alternator (23-24?) seemed weird, I also test voltage at the back of my tach from; alternator input to ground and got 0 volts. I have the westerbeke admiral gauge cluster. I also have ”cruiser equipment” silver bullet 105A alternator and looks to be a cruiser equipment regulator (unfortunately “cruiser equipment” has gone out of business and I have not been able to find much info on these parts).With the engine running I show no more than 12V on my gauge cluster even though it seems the alternator is putting out juice. Looks like I have some more searching/researching to do. Also I have two gel house batteries and a separate cranking battery.

The emphasised sections strongly suggest the alternator is not working.
If you are using an auto ranging meter, the stated numbers (23-24?) might have been millivolts - such errors have caught the tyro before.

Newhaul's advice sounds prudent to me.

[gwhyland]

I have the same issue and found this article explaining the issue for some including myself. Having solar adds to the issue in some cases

https://www.bigdumboat.com/LTS/taksig.html