2007-07-26 15:57:48 · 6 answers · asked by Jeff & Seana C 1 in Cars & Transportation ➔ Boats & Boating
The "leg" of an "inboard outboard" is called the "lower unit" . There are water intakes on either side of the lower unit just above the prop shaft housing that are a series of approx. 3/8" diameter holes arranged vertically. Not all I/o's take water in thru the lower unit. Some have an engine mounted water pump with seawater supplied thru a seacock and sea strainer.
2007-07-26 23:57:58 · answer #1 · answered by mark t 7 · 1⤊ 0⤋
Depends on variouis factors. The size, the number, the layout etc although on most smaller pleasure craft yes it will be on the lower section (skag plate). Some turbo charged units have a common water cooling for the engine and the intercooler and they pick water just infront of the leg. Seen this on a Penta setup in a chris craft.
2007-07-27 03:25:47 · answer #2 · answered by Gib 3 · 0⤊ 0⤋
Never heard of a leg on a boat, but the intake is on both sides of the lower unit of the out drive. They look like vents with screens across them.
2007-07-27 05:43:33 · answer #3 · answered by Anonymous · 0⤊ 0⤋
The water intake is located under the cavation plate just above the prop. I think the word you are looking for is the skag. Thats the pointy thing at the bottom of the outdrive
2007-07-27 01:50:41 · answer #4 · answered by Anonymous · 0⤊ 0⤋
As mentioned the Lower Unit on boats like ski boats. Larger boats and ships use something a little different, as also mentioned by Mark T. V-Drives use something like Mark mentions as they not have a Lower Unit.
This link you can see pictures of a large boat/ship water cooling;
http://www.boatpartsinfo.com/cooling-systems.html
2007-07-27 09:39:08 · answer #5 · answered by Snaglefritz 7 · 0⤊ 0⤋
yes it is. it draws raw (salt) water thru grates on either side of the lower unit.
2007-07-27 00:30:44 · answer #6 · answered by jamie kRAMER 1 · 1⤊ 0⤋