Search found 38 matches

by Mike Sea
Sat Sep 06, 2014 9:17 am
Forum: Small outboards
Topic: Porpoising help
Replies: 16
Views: 6793

Re: Porpoising help

Hi Mojo I built a boat very similar to the Flying Saucer but with a flat racing bottom and non- trip chimes. I was running a motor that weigh about 115 lbs and had about 40 hp. On the third pin the boat porpoised very bad and on the 4th pin position it was almost uncontrollable but the speed picked ...
by Mike Sea
Tue Nov 12, 2013 1:43 pm
Forum: Power Boats
Topic: Refinishing 61 Merc.
Replies: 12
Views: 1950

Re: Refinishing 61 Merc.

I have used the following colors for Cloud White, VW Cashmere white and Ford Wimbledon white and both are very close to Cloud White. I currently have 3 white 4 cylinder Mercs side by side, a 1961 restored with Wimbledon White, 1962 restored with VW Cashmere White and a 1963 with original color in go...
by Mike Sea
Thu Sep 12, 2013 7:38 am
Forum: Small outboards
Topic: Merc Motor.
Replies: 15
Views: 4006

Re: Merc Motor.

Hi Jeff I have a small runabout similar to the Glen-L Flying Saucer but it is of my own design. I currently run a 1964 Merc 500 and when I go to Atwood Lake I run a Mercury KG-9, because of the 25 hp limit. You can see my boat at http://www.glen-l.com/phpBB2/viewtopic.php?f=20&t=14659. I do not know...
by Mike Sea
Tue Sep 10, 2013 7:44 am
Forum: Small outboards
Topic: Merc Motor.
Replies: 15
Views: 4006

Re: Merc Motor.

Mercury issued a service bulletin in the mid 1960's that said any full needle bearing motor should run 50 to 1 oil mix. Also the 1965 Service Manual C-90-25500 states to run 50 to 1 mix with Mercury Formal 50 Quicksilver oil. However with my Merc 500 I run around 32 to 1, it varies between 24 - 1 an...
by Mike Sea
Wed Aug 28, 2013 8:35 am
Forum: Small outboards
Topic: Dyno Mite
Replies: 4
Views: 2033

Re: Dyno Mite

The TNT should be faster than the DynoMite but the DynoMite should handle rough water better. So I would make my boat selection on where I plan to do most of my boating. I currently run a flat bottom runabout similar to a D class boat just a little bigger. On smooth to moderate chop I can run over 4...
by Mike Sea
Sun Aug 25, 2013 1:13 pm
Forum: Small outboards
Topic: Dyno Mite
Replies: 4
Views: 2033

Re: Dyno Mite

Since the Dyno Mite and the Bullet are very similar boats only with different constructions methods, you should be able to come up with a speed estimate based on the results for the Bullet. Checkout Mark Finnila's build at http://www.glen-l.com/weblettr/webletters-14/webletter126.html#X and Matt Hea...
by Mike Sea
Fri Aug 09, 2013 7:14 am
Forum: Small outboards
Topic: ZIP Prop
Replies: 11
Views: 2698

Re: ZIP Prop

I also think you should try a 10 or 9 pitch prop and check the revs, that motor should tack out at 5200 to 5600 rpm. I have seen speeds of 35.4 mph with a 10.75 x 13 Mercury prop and a Merc 300 on a smaller boat similar to the Flying Saucer but I had too big a prop, should have tried a 11 or 12 pitc...
by Mike Sea
Mon Aug 05, 2013 3:35 pm
Forum: Small outboards
Topic: Help with porpoising
Replies: 16
Views: 8696

Re: Help with porpoising

Carl your not a pain, I fully expected some comments on my post. I still believe that when building the boat you should make it as flat as possible as mentioned on page 157 of the Boatbuilding With Plywood book, after you have a flat bottom then put the hook/wedge in boat. I agree with you if I woul...
by Mike Sea
Mon Aug 05, 2013 1:13 pm
Forum: Small outboards
Topic: Help with porpoising
Replies: 16
Views: 8696

Re: Help with porpoising

I think the biggest disappointment a boat builder has is when he launches the boat for the first time and discovers that his pride and joy wants to porpoise. My boat is similar to the Flying Saucer but has a flat bottom and non-trip chines, the boat is 13ft 4 inches long and weights about 250 to 275...
by Mike Sea
Tue Jun 11, 2013 6:57 am
Forum: Boat Power
Topic: Converting an outboard engine to an inboard
Replies: 13
Views: 13378

Re: Converting an outboard engine to an inboard

The idea has been tried before by Fageol, Crofton or Homelite I am not sure which one but it's the same basic motor. They took a 44 cubic inch outboard made an inboard similar to your idea with the lower unit coming out of the bottom of the boat. I think the inboard/outdrives put an end to the idea....
by Mike Sea
Sat May 25, 2013 8:23 am
Forum: Small outboards
Topic: Zip setup
Replies: 11
Views: 2763

Re: Zip setup

I have noticed several post about boat porpoising and in my option most boat porpoising is caused by two much weight in the back of boat and flexing transoms. The Zip's transom as the plans state was designed for a 40 hp motor at that time it would have been a Mark 55, that weighed about 130 lbs. A ...
by Mike Sea
Tue May 14, 2013 6:34 am
Forum: Design Modifications
Topic: Modifying Outrage
Replies: 3
Views: 2166

Modifying Outrage

I have been wanting to build a small 14 ft boat runabout similar to Tuffy but with a Deep Vee bottom. The problem is no one makes plans for this style of boat and to be truthful I don't think I can design it myself. Glen L does make the Outrage the style of boat I want only it is to big, the plans s...
by Mike Sea
Mon May 06, 2013 6:01 pm
Forum: Design Modifications
Topic: Flat-turning vs Roll-up turning
Replies: 2
Views: 2622

Re: Flat-turning vs Roll-up turning

A boat design from the 50's can not be made into a flat turner without a redesign. A typical flat turner has a narrow bottom to decrease drag while turning. They are normally designed to turn one way left but could be setup to turn right. Placing the fin in the center on CD will let you turn right o...
by Mike Sea
Sun Apr 28, 2013 6:04 pm
Forum: Boat Power
Topic: Weight for a Mercury D Racing engine
Replies: 2
Views: 1448

Re: Weight for a Mercury D Racing engine

I am not sure of the weight of the motor you mentioned but my guess is it should weigh in the 100 to 110 lb range. A non electric Mark 55 motor would weigh about 120 to 130 lbs. I have a stock KG 9 and it weighs 110 lbs. I hope this helps.
by Mike Sea
Thu Dec 20, 2012 6:50 pm
Forum: Small outboards
Topic: Found Motor
Replies: 17
Views: 3547

Re: Found Motor

The VW Cashmere white is very close to the Mercury White however I would be very careful using any Rustoleum paint I have painted several motors and have had bad luck with the Rustoleum products. If you decide to go with the VW paint go to a good auto paint store and you can get it in bulk or spray ...