d318 electric starter question

Which model starter is it? 40MT, 50MT or 42MT.
Here is the performance on the 40MT

I'd go with #0000 in that application.

I'll have to go to the barn to see which starter I have, but assuming it is a 40, how do you read that graph?

My apologies for sleeping during the graph portion of my education.

Follow the rpm curve from 4000 rpm (no load speed) down to the center of the graphs where the torque, output and rpm are at optimum combination and read the amperage. In this case a range of 800+ to 1,100 amps. for a 800 - 1200 rpm range.

That is where the best expected performance for this starter occurs.

If more output is required then the next size starter would be required.

The 40MT starter is generally rated for about 900 to 950 cubic inch engine displacement. The D318 is 525 cubic inches.

How are you at chart reading and navigation 😄 😄

OM, my 24 volt starter is a 50mt. I'm pretty good with plotting courses and charts, although my celestial skills are definately rusty, due to the advent of GPS and now chartplotters.

Amperage will be a little higher. I'll add some info to the graph and post a little later.
Low end amperage is a little higher, not much difference in the high end. Biggest change is in the Kw.

#0000 wire would still be plenty and allow a fairly long lead length.

How about a picture of that boat😊

[center]
[img]http://i627.photobucket.com/albums/tt351/quidam1947/Quidam/1-1.jpg[/img]
What she currently looks like (boat on the left next to barn)

[img]http://i627.photobucket.com/albums/tt351/quidam1947/Quidam/Quidam_Jan-09.jpg[/img]
What she's going to look like when I'm done

[img]http://i627.photobucket.com/albums/tt351/quidam1947/Quidam/009.jpg[/img]

[img]http://i627.photobucket.com/albums/tt351/quidam1947/Quidam/DSCF3855.jpg[/img]

[img]http://i627.photobucket.com/albums/tt351/quidam1947/Quidam/DSCF3140.jpg[/img]
New pulley to drive 24V ElectroDyne brushless alternator

[img]http://i627.photobucket.com/albums/tt351/quidam1947/Quidam/DSCF3139.jpg[/img]
New exhaust system going in
[/center]

It's a little farther along that what some of these shots indicate and of course, I have pictures of the rest of the boat's interior that I could post, if interested in seeing more(?).

What a great project😊 😊 ......neat old boat....what vintage is it?
Pretty snug in that engine compartment.
That's some fancy pulley with surpentine multigroove and v-belt combination.

Yes, I would like to see pictures of the rest of the boat😊
Those old wood boats sure are money pits and you don't seem to be holding back on anything. I really like it....old Navy man, can't help myself😉

Oh, man .. I'm glad I don't have to work on boat engines. Snug isn't the word on that setup .. 😞
OM is right .. the definition of wooden boats and yachts, as explained to me by a former boat-builder/owner who I was in partnership with (on gold-mining projects, of all things) ..
"A hole in the water .. into which you throw $100 notes with gay abandon .." 😄

[img]http://i627.photobucket.com/albums/tt351/quidam1947/SeaHawkII/Scan_Pic0001.jpg[/img]
August 1947. That.s Fred in the center. Doesn't really look like a millionaire does he?

The boat was built in 1947 buy Fred Smith. Buy the time Fred was 15 years old he was a captain of a three masted schooner carrying cargo on the east coast. This was the third and final boat he built and he built her the old way, buy first carving a half hull and then taking the llines off the half hull. Fred also owned Smith Equipment co., a caterpillar dealership, in New Jersy. That dealership still exist as Foley Cat. The cat dealership made Fred quite wealthy and he owned a home just down the street from the Kennedy compound in Palm Beach. The boat made over twenty trips from New Jersy to Florida , and in 1972 while returning from Florida, Fred died on the boat. His wife wrapped him in an old sail and continued on to bring him home.

[img]http://i627.photobucket.com/albums/tt351/quidam1947/SeaHawkII/Scan_Pic0002.jpg[/img]
That's Fred sitting. Notice the truck in the background.

The access to the engine really isnt that bad. There are two large sections of the floor above the engine that lift off. At the front of the engine is the steps, that are easily removed, and on either side of the steps there is a door.

[img]http://i627.photobucket.com/albums/tt351/quidam1947/SeaHawkII/Scan_Pic0003.jpg[/img]
Launching day. Notice the swordfishing pulpit off the bow.

I have more time in this project than dollars. I only drew a picture of what I wanted the boat to look like, (no blueprints), so I have been engineering on the fly and that takes alot of time, and some of my ideas have proven difficult to build. For example: the entire upper half of the wheelhouse is removable for trucking purposes, and the bench in front of the wheel house slides out to access the motorcyle I will carry.