Search found 836 matches

by galamb
Tue May 12, 2009 9:21 am
Forum: Power Boats
Topic: malahini motor question
Replies: 12
Views: 3357

Re: malahini motor question

I believe you will find that the Coast Guard regs apply to just about every body of water north of the Mexican border. Even in Canada where I am, the Candian regs most often defer to the USCG regs as the final authority. Any boat that is commercially produced has to be coast guard compliant to be li...
by galamb
Sun May 10, 2009 12:27 pm
Forum: Boat Power
Topic: motor specs
Replies: 7
Views: 1721

Re: motor specs

I have extensive lists of my own - model years, serial lists, weights etc. Sorry, they are not posted, but if you post something here I can get back to you usually within 24 hours. Or, it there are a few different motors that you have you eye on, I would be happy to give you some general information...
by galamb
Sun May 10, 2009 12:20 pm
Forum: Power Boats
Topic: malahini motor question
Replies: 12
Views: 3357

Re: malahini motor question

The coast guard has a formula for determining what the maximum horsepower is that you can put on a boat, and if you plan to licence a homemade one, you may be scrutinized quite closely when you register. Since you are building the boat yourself, you could significantly stengthen the transom in any e...
by galamb
Mon Apr 27, 2009 8:40 am
Forum: Jet Ski Power
Topic: Houseboat Jet propelled?
Replies: 10
Views: 5093

Re: Houseboat Jet propelled?

As I pointed out, when you NEED a jet I think they are a great thing that allow you to boat where you couldn't without it. And yes, they are really "cool" etc etc and even if you are undertaking a project "just because or just to see how it will work" then I would never try to talk you out of it. Bu...
by galamb
Sat Apr 25, 2009 4:06 pm
Forum: Jet Ski Power
Topic: Houseboat Jet propelled?
Replies: 10
Views: 5093

Re: Houseboat Jet propelled?

A jet is only about 2/3's as efficient as a regular prop (whether you are talking inboard, I/O or outboard. So if you are looking for the equivalent of 120 SHP's produced by a prop from a Jet, you would need 180-200 BHP at the crank on your jet drives powerplant (where the prop driven would need 130...
by galamb
Sat Apr 25, 2009 3:48 pm
Forum: Boat Power
Topic: E-10
Replies: 22
Views: 5989

Re: E-10

Merc and Honda in particular have come out and advised that you run stablizer all the time with the ethanol "enhanced" fuels. As others have stated here, we have had E10/E15 in Canada for a number of years now and I have been running it in my outboards for at least 7 or 8 seasons for sure. These fue...
by galamb
Sat Apr 11, 2009 5:38 am
Forum: Boat Power
Topic: School Me
Replies: 5
Views: 1603

Re: School Me

A 1983 model 50ELPT would go 170 lbs without the prop or gear oil - so certainly well under 200 completely rigged. I don't recall a high performance version of this model - at least not directly from Merc. Merc did tend to "under rate" the power of their outboards so that they would perform "better ...
by galamb
Fri Apr 10, 2009 6:09 pm
Forum: Boat Power
Topic: School Me
Replies: 5
Views: 1603

Re: School Me

The 4 cylinder, 50 horse Merc's were a nice and "torquey" motor. That model year will have the most current Thunderbolt ignition - a definate plus. In that time frame Merc switched from Tillotson to Walbro carbs, but regardless of which it has, kits for both (and the fuel pumps) are still readily av...
by galamb
Thu Feb 05, 2009 12:02 am
Forum: Power Boats
Topic: Audeen
Replies: 11
Views: 4934

Absolutely Dave, Now, I do understand that sometimes we just "want what we want" for no other reason than that. And as long it has been properly considered there is nothing wrong with that. Like I drive my F150 to work as a commuter vehicle even though I have a Dodge Neon sitting in the driveway. I ...
by galamb
Tue Feb 03, 2009 3:22 am
Forum: Power Boats
Topic: Audeen
Replies: 11
Views: 4934

I'm still a little suprised by the number of individuals either running or considering running jet drives. They are probably the most inefficient method to power a boat unless you need it because you require it to run in extremely shallow water. They burn more gas than almost any other option to ach...
by galamb
Mon Feb 02, 2009 12:21 pm
Forum: Boat Power
Topic: Outboard Shaft Length
Replies: 5
Views: 1959

I have opted for a 25" shaft on a 24' walkaround for a slightly different reason than stated above. I wasn't so concerned about the seaworthyness (an arguable factor), but instead I have considered on/off at some future point powering with twin outboards instead of the single 140 I currently have. A...
by galamb
Wed Jan 28, 2009 2:09 am
Forum: Boat Power
Topic: Transom Height
Replies: 8
Views: 2536

Guys often pay alot of money for an adjustable jack plate to get their motor up an inch or so from the normal mounted position - and do alot of playing around/testing to find that optimal mount point. Given that you are talking about an older 15 horse motor, having it mounted an inch or so higher th...
by galamb
Thu Jan 22, 2009 9:55 pm
Forum: Power Boats
Topic: Ready to Flip the Malihini
Replies: 17
Views: 5216

More or less - I know that's kinda a "cop out" answer, but every engine/drive combo is going to be a little different. Some "general rules of thumb" with regards to marine engines - The Shaft Horsepower (SHP) or power at the prop will be 10% less than the Brake Horsepower (BHP) or power at the crank...
by galamb
Thu Jan 22, 2009 1:09 pm
Forum: Power Boats
Topic: Ready to Flip the Malihini
Replies: 17
Views: 5216

The boat is looking pretty fine.

A 75 horse Jet will give you about the same performance as 50/55 horse outboard - you lose about 1/3 of "performance" horsepower rating due to the inefficency of the jet - but it will sure be nice to skim along in a few inches of water :)
by galamb
Wed Jan 21, 2009 1:02 pm
Forum: Boat Power
Topic: Remote controls for small motors
Replies: 2
Views: 2750

Yes and no - Merc makes a number of "remote attaching kits" for their line of outboards. I know for sure that kit's exist for 25 horse and under models reaching back into the 1970's because I have installed them. Kit's that were originally marketed for the 18/25 horse models fit 6/8/9.9 and 15 horse...

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