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Showing results 1 to 25 of 45
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Search: Posts Made By: waltsn
Forum: Boat Review and Purchase Forum 12-19-2012
Replies: 8
Views: 1,174
Posted By waltsn
Re: Buying a boat that was hit by lightning?

Something to consider... A nearby lightning strike will generate a large magnetic field. If you look at this link Magnetic field - Wikipedia, the free encyclopedia go down about half way and there...
Forum: Gear & Maintenance 10-02-2012
Replies: 9
Views: 1,391
Posted By waltsn
Re: Nissan 9.8 priming problem

Hello Sumner (walt here)..

That water separator isnít a bad idea but I donít believe Iíve ever heard of someone with an outboard / small tank having a problem caused by water in the gas.

The...
Forum: Gear & Maintenance 10-02-2012
Replies: 9
Views: 1,391
Posted By waltsn
Re: Nissan 9.8 priming problem

My Tohatsu 4 hp did about the same thing. I had left it sitting over the summer in a hot garage.

I went to use the outboard and the same thing happened as the OP, as I pumped, gas came out...
Forum: General Discussion (sailing related) 09-01-2012
Replies: 40
Views: 2,772
Posted By waltsn
Re: My pet fear

Some of you might find this interesting to read (this was on the net a while ago for free but the free link is now gone so I scanned my copy)...
Forum: Gear & Maintenance 08-29-2012
Replies: 4
Views: 462
Posted By waltsn
Re: Towable lightning ground

Regarding the surface discharge electrodes effectiveness, this is from the web site referenced earlier (click to see the picture Science & Technology...
Forum: Gear & Maintenance 12-13-2009
Replies: 17
Views: 3,256
Posted By waltsn
Much thanks to everyone for all the reply's on...

Much thanks to everyone for all the reply's on this (and the other) Nissan/Tohatsu thread. Very useful to me!!!
Forum: Gear & Maintenance 12-10-2009
Replies: 17
Views: 3,256
Posted By waltsn
Nissan/Tohatsu 9.8 high to low altitude

Since the Tohatsu guru is visiting here.. I have another question.

I will normally use this engine for a couple months at 5000 feet el, most of the summer it will be used at 8600 feet el

But...
Forum: Gear & Maintenance 12-10-2009
Replies: 12
Views: 4,769
Posted By waltsn
There are two different outboard / batteries in...

There are two different outboard / batteries in this thread. One is a smaller battery but I have a 200 amp hour battery (the two six volt golf cart batteries). What I am worried about is that the 60...
Forum: Gear & Maintenance 12-09-2009
Replies: 12
Views: 4,769
Posted By waltsn
Probably right about the charge not being enough...

Probably right about the charge not being enough to worry about.. The last trip we did 185 miles over a week mostly motoring in a sailboat so the outboard is running for a LOT of hours. Otherwise, I...
Forum: Gear & Maintenance 12-09-2009
Replies: 12
Views: 4,769
Posted By waltsn
Nissan/Tohatsu 9.8 charging system

Ive got on order a new Nissan 9.8 four stroke.

This outboard looks like it has the same sort of magneto - rectifier setup my current 1990 Honda BF8 outboard does. In larger outboards and...
Forum: General Discussion (sailing related) 11-09-2009
Replies: 72
Views: 17,327
Posted By waltsn
I have an older Macgregor displacement hull water...

I have an older Macgregor displacement hull water ballast (26S) so have been watching these news events for a while.

In about 1996, Macregor came out with the 26X water ballast "power sailer"...
Forum: Electrical Systems 07-21-2009
Replies: 21
Views: 1,674
Posted By waltsn
One other point (which Cam also already made) is...

One other point (which Cam also already made) is regarding "can the 200 amp hour batteries put out enough current".

The intended usage time frame is short which I think is important here for...
Forum: Electrical Systems 07-21-2009
Replies: 21
Views: 1,674
Posted By waltsn
Another opinion - I agree with Cam, you should be...

Another opinion - I agree with Cam, you should be able to do this. The important thing will be the wires between the battery and the inverter and recently someone posted a nice web site calculator...
Forum: Electrical Systems 06-24-2009
Replies: 8
Views: 1,739
Posted By waltsn
Maybe not correct but I get the impression that...

Maybe not correct but I get the impression that the battery voltage immediately or in a short time frame rises to 18 volts when the tach wire is connected.

If unregulated, the alternator could...
Forum: Gear & Maintenance 06-17-2009
Replies: 15
Views: 3,883
Posted By waltsn
I understand amps hours in is "close enough" to...

I understand amps hours in is "close enough" to amps hours out to not worry about it.

This is not true of power in vs power out since the amp hours in are generally at a higher voltage than the...
Forum: Electrical Systems 06-08-2009
Replies: 6
Views: 1,659
Posted By waltsn
My understanding.. The idea behind the green...

My understanding..

The idea behind the green wire in an AC system is that anything which you could get shocked on (such as a metal chassis or the DC ground system in the boat) is electrically...
Forum: Seamanship & Navigation 02-05-2009
Replies: 60
Views: 4,444
Posted By waltsn
Quote "This is all why - all this voodoo it...

Quote "This is all why - all this voodoo it should work in theory is still voodoo safe guarding. Easiest way to protect your electronics is to put a loop in the wire / cables that comes down from...
Forum: Seamanship & Navigation 02-05-2009
Replies: 60
Views: 4,444
Posted By waltsn
Zapped.. dont know. Dont take any of the below...

Zapped.. dont know. Dont take any of the below seriously, just guessing again...

The natural path for lightning to water is to ionize the water surface and radiate outwards at the surface creating...
Forum: Seamanship & Navigation 02-05-2009
Replies: 60
Views: 4,444
Posted By waltsn
Some wild axx theory stuff on cables over the...

Some wild axx theory stuff on cables over the side ... cant give a reference and it could be wrong..

You always hear that electricity will take the lowest impedance path to ground and there is no...
Forum: Seamanship & Navigation 02-02-2009
Replies: 60
Views: 4,444
Posted By waltsn
Not related to the original posters question.....

Not related to the original posters question.. but..

At my job, we test consumer electronics intended to be operated in an outdoor environment for lightning tolerance. Any wires or cables into or...
Forum: Electrical Systems 12-23-2008
Replies: 16
Views: 6,323
Posted By waltsn
If the sense probes were in the water a lot, you...

If the sense probes were in the water a lot, you are putting 12 volts on them and electrolysis would be an issue. But, the probes of course are dry most of the time.

One other completely...
Forum: Electrical Systems 12-18-2008
Replies: 24
Views: 6,212
Posted By waltsn
My previous owner had installed a switch between...

My previous owner had installed a switch between the outboard charging system and the battery. Iím guessing that opening this switch while the motor was running is why the rectifier was blown. (you...
Forum: Electrical Systems 12-17-2008
Replies: 24
Views: 6,212
Posted By waltsn
Pedcab, interesting and good idea. I have the...

Pedcab, interesting and good idea. I have the same problem you solved, Id bet a lot of others also do but maybe dont know it.

My about 1990 or so Honda BF8 (8 hp) has an alternator 5 amp charging...
Forum: Gear & Maintenance 11-14-2008
Replies: 25
Views: 2,443
Posted By waltsn
Good for you for trying.. Im wondering where you...

Good for you for trying.. Im wondering where you will find the 48 volt DC generator? Most of the small gas gensets you can buy (like the Honda's) put out all the higher power at 110 VAC only. Some...
Forum: Gear & Maintenance 11-14-2008
Replies: 25
Views: 2,443
Posted By waltsn
Also worth mentioning... 30 amps at 48 volts is...

Also worth mentioning... 30 amps at 48 volts is 1440 watts - a little less than 2 hp. Works OK on a 16 foot boat but may not get you out of trouble on something even slightly larger.
Showing results 1 to 25 of 45

 

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