Help me read this hour meter

[alcodiesel]

Please I am a dummy with the the 2 right hand numbers both being white. Normally the right hand digit is white and it is tenths. What do 2 white dials mean, hundredths?

[romantic comedy]

you multiply the number by 100.

5 = 500
10 = 1000

35 = 3500

so the tach goes from 0 to 3500 rpm. Perfect for the Atomic Four.

[alcodiesel]

Thanks but I am asking about the hours.

[JOHN COOKSON]

Please I am a dummy with the the 2 right hand numbers both being white. Normally the right hand digit is white and it is tenths. What do 2 white dials mean, hundredths?

Watch the hour meter closely. You are near 99 on both white dials. If when the white dials both read 00 and the black number changes from 397 to 398 then you will know the white dials are reading in 10th and 100th. This can be confirmed by running the engine for six minuets and noting if the right dial goes through a complete revolution and the dial next to it increases by one ie 1 tenth of a minute.

TRUE GRIT

[alcodiesel]

Thank you for the reply. Oops, I forgot to write the tach. doesn't work and neither does the hour meter. That is a great idea- just power it up, and I tried that awhile back-no joy.

Here's another tack: It's a 40 yr old boat- would there be 400 or 4000 hrs on the engine?- She has lived for many years in and around Norfolk, VA. It seems to me that 10 hrs a year is low and 100 hrs a year is high.

[Dave Neptune]

Bill, a hundred hours a year is really a lot of use. I get close to that as I have a mooring across the Catalina Channel and motor over a dozen or so times a year PLUS all of the other use.

Your meter reads three hundred ninety seven & 98/100ths" hours.

I know many who sail a lot IE almost every other weekend all year long and 20 hours is a bunch for them. It depends on the use of the motor not the boat.

It also seems from my own experience working on many boat engines that more use if far better than a lil bit at a time.

Dave Neptune

[Al Schober]

All you can infer is that the hourmeter worked for almost 400 hrs before it quit. Do you know when it was last working?

[alcodiesel]

Thank you, guys.

Tenths and hundredths. Great! 400 hrs.
I bought the boat from the estate of a fella that died. From the high level of maintenance the boat was in I am guessing this tach is a very recent death, too.

[hanleyclifford]

Color Me Sceptical

I never heard of an hour meter that read to hundredths of hours. My guess is that the white number second from the end is whole hours.

[alcodiesel]

Me either but when I googled them, they are out there. http://www.overtons.com/modperl/prod...i=73305&r=view

[BadaBing]

I do like the facts that the tech only goes up to 3500. I'm planning to add a arch to my boat this spring and was hoping to find one that only goes.up.to 3500 or 4000. It seems it would be easier to read, more accurate in showing smaller changes and better suited for our engines.
I was also looking for and considering a digital surface mount type, if such a things exists, so that I co u of mount it on the bulkhead over the engine compartment. It's not.often that I need to see how fast she is spinning but when I do I'm normally bent over the engine itself.

[JOHN COOKSON]

All you can infer is that the hourmeter worked for almost 400 hrs before it quit. Do you know when it was last working?

+1
All that can be determined is that there is at least almost 400 hours on the engine. You don't know how many hours were on the engine, if any, when the hour meter was installed. Likewise you don't know how many hours, if any, the engine was run after the hour meter quit.

TRUE GRIT

[edwardc]

Bill, a hundred hours a year is really a lot of use. ...

You think so? Here on the Chesapeake, the months of July & August generally have little to no wind, so trips involve motoring. That, and the fact that it takes me 30-45 min of motoring out (depending on wind direction) before I can raise the sails, means that my engine use has averaged around 100 hrs per season for the last 5 years. I think that's pretty typical in this area (for people who use their boats regularly).

[Ajax]

I raced on Wednesday nights.
45 minutes out and back, every Wednesday night.

Sometimes I did distance races where I needed to motor a long distance to a starting line because I didn't have time for a tack-fest to sail there.

Sometimes I finished a race and the wind died, but I had to get home.

I'm well over 100 hours this year.

[alcodiesel]

Hmmmm and the guy I bought the boat from only raced it.

So it's got somewhere between 400 hrs and a million. In the mean time I measure use by how many gallons of gas I use.