Search found 24 matches

by alloyboy
Sun Nov 19, 2017 11:04 am
Forum: SMALL BOAT ELECTRICAL
Topic: Stator Winding Configurations
Replies: 1
Views: 1693

Stator Winding Configurations

[What are the advantages and disadvantages] of using a three-wire Wye-configuration stator versus a Delta-configuration stator in a permanent magnet electrical generation system? I have searched the internet high and low can find many references to the two types but nothing that explains the benefit...
by alloyboy
Wed Jan 11, 2017 1:37 pm
Forum: SMALL BOAT ELECTRICAL
Topic: E-TEC Engine Starting Battery Specification Speculation
Replies: 5
Views: 5655

E-TEC Engine Starting Battery Specification Speculation

Any opinions as to why the [engine cranking battery for an Evinrude E-TEC engine] MCA rating is as high as it is? [Note: while not mentioned here, the MCA rating for an E-TEC V6 engine battery is recommended to be 1,000-MCA for use in temperatures below 32-degrees-F or extreme service, or 845-MCA fo...
by alloyboy
Fri Jan 06, 2017 9:11 pm
Forum: SMALL BOAT ELECTRICAL
Topic: E-TEC Engine Charging Output; ACR Rating
Replies: 7
Views: 4050

Re: E-TEC Engine Charging Output

If the electrical power to recharge a battery is stated as 50 amps, at nominally 12 volts, that is 600 watts. Comparable favorably with most any outboard motor using a permanent magnet generator. Now if the output to the motor is 83 amps, at 55 volts, that is a serious electrical generation system. ...
by alloyboy
Sun Jan 01, 2017 5:49 pm
Forum: PERFORMANCE
Topic: 1994 OUTRAGE 21: Honda 250-HP
Replies: 4
Views: 3059

Re: 1994 OUTRAGE 21: Honda 250-HP

How does the boat sit in the water?

How does the boat perform?

I had a 1998 Aquasport 215 Explorer and swapped to a Yamaha F200 from a Mercury 175 EFI; the boat rode just fine. Published weight of the F200 without the propeller or oil was over 600-lbs.
by alloyboy
Tue Dec 06, 2016 2:39 pm
Forum: VHF MARINE RADIO
Topic: Rescue 21 Maintenance Contract
Replies: 7
Views: 8649

Re: Rescue 21 Maintenance Contract

Not to worry. It is all being paid for with printed money. Just print some more.
by alloyboy
Mon Nov 07, 2016 4:33 pm
Forum: SMALL BOAT ELECTRICAL
Topic: Engine Rating for Maximum Battery Capacity
Replies: 4
Views: 2584

Re: Engine Rating for Maximum Battery Capacity

Engine maker is Yamaha. No one at the USA distributorship would be able to answer a question about the maximum battery size specification. Maybe not even anyone from Yamaha Japan. I suspect that Mitsubishi makes the electrical stuff for Yamaha. Would be hard to find Fujimoto at Mitsubishi who might ...
by alloyboy
Sun Nov 06, 2016 6:17 pm
Forum: SMALL BOAT ELECTRICAL
Topic: Engine Rating for Maximum Battery Capacity
Replies: 4
Views: 2584

Engine Rating for Maximum Battery Capacity

Now what would you make of an outboard motor maker publishing a maximum capacity value for a starting battery? I am having a hard time wrapping my mind around a battery being too large.
by alloyboy
Wed Oct 19, 2016 3:57 pm
Forum: PERFORMANCE
Topic: Mercury 60-HP Fuel Use
Replies: 6
Views: 3109

Re: Merc 60 HP Fuel usage general comment

Not a good idea to run a fuel injected model out of gasoline. The electric fuel pump is lubricated and cooled as gasoline flows through it. The pump can become damaged when run dry. Next time you go to use the motor make sure that you use the primer ball to completely refill the fuel system before y...
by alloyboy
Sat Oct 15, 2016 10:52 am
Forum: PERFORMANCE
Topic: 15 Striper Re-power: Mercury 60 EFI
Replies: 29
Views: 15248

Re: 15 Striper Re-power: Mercury 60 EFI

Is [the smoke puff for a duration of three to four seconds during engine starting due to] the fuel enrichment adding more gasoline? I thought only carburetor engines did that.FISHNFF An EFI motor will also enrichen the fuel mixture during a cold start, similar to what a carburetor model will do, bu...
by alloyboy
Fri Sep 23, 2016 3:47 pm
Forum: SMALL BOAT ELECTRICAL
Topic: Variation in Fuel Used Monitoring
Replies: 5
Views: 2801

Re: Variation in Fuel Used Monitoring

I called and talked to Kevin at Floscan, [who is a] very nice man and very helpful. Of their four typical fuel flow sensors, he said [their model] 20B will provide reliable readings down to 0.2 to 0.3 gallons per hour. He indicated they have other sensors that will provide accurate results below the...
by alloyboy
Thu Sep 22, 2016 7:00 pm
Forum: SMALL BOAT ELECTRICAL
Topic: Variation in Fuel Used Monitoring
Replies: 5
Views: 2801

Re: Variation in Fuel Used Monitoring

Seems strange that two devices would do simple math and not come up with the same answer. I actually prefer a fuel flow measurement type of system (Floscan for instance) that actually measures physical fuel flow as to opposed to a calculated fuel flow system. Many variables in the calculated system ...
by alloyboy
Sat Jul 30, 2016 11:25 am
Forum: The GAM
Topic: Yamaha Engine Reliability
Replies: 3
Views: 2601

Re: reliability of a 2004 Yamaha 40 hp fourstroke engine

A 2004 F40 has a smaller idle jet than did earlier F40's. It can be a bit fussy then when it comes to starting easily and idling well. Ethanol does not make life any easier. If you were to have a carburetor problem then many have been known to install a larger-size idle jet. Otherwise, the F40 is as...
by alloyboy
Tue Feb 23, 2016 7:07 pm
Forum: REPAIRS and MODIFICATIONS
Topic: 1993 Yamaha 70-HP: Interpretation of Aural Alert
Replies: 10
Views: 4076

Re: 1993 Yamaha 70-HP: Interpretation of Aural Alert

Two conditions in your model normally sound the alarm and put the motor into the RPM reduction mode. A switch closing in the oil sensor assembly or a switch closing in the thermoswitch assembly. If the switch in the oil tank is open (normal condition with sufficient oil) and the thermoswitch switch ...
by alloyboy
Tue Jan 12, 2016 11:57 am
Forum: PERFORMANCE
Topic: YAMAHA F70 manufacture date
Replies: 19
Views: 8355

Re: YAMAHA F70 manufacture date

OR buy the motor, forget about when it was actually made, while paying less, and enjoy the whaler for many more years to come. The problem is that Simon did [b]not pay less.[/b] If he had paid less, that would be perfectly fair. The dealer expected him to pay the same price for a motor that had bee...
by alloyboy
Tue Jan 12, 2016 10:41 am
Forum: The GAM
Topic: Theft of Gear From Boats Stored at Cheasapeake Whalertowne
Replies: 7
Views: 4525

Re: Theft of Gear From Boats Stored at Cheasapeake Whalertowne

I did not think there would be such a lucrative black market for Brunswick's outboard engine electronic controllers. They must be expensive and prone to needing replacement. Somewhat expensive depending upon the model. $600 for a smaller motor to over $4,000 for a 350 Verado . Prone to the need to ...
by alloyboy
Wed Jan 06, 2016 5:12 pm
Forum: SMALL BOAT ELECTRICAL
Topic: Evinrude Alternator Output
Replies: 10
Views: 6562

Re: Evinrude Alternator Output

The PMA is driven from the flywheel directly, so no losses in pulleys and belts. There is no exciting current needed so it works without need to have a battery. Did you read my article? It explains all of this. The more modern automotive alternators are using PMA techniques. Wind-driven alternators...
by alloyboy
Wed Jan 06, 2016 1:12 pm
Forum: SMALL BOAT ELECTRICAL
Topic: Evinrude Alternator Output
Replies: 10
Views: 6562

Re: Evinrude Alternator Output

I have never given any thought to why Evinrude mentions to total electrical power output of their alternator. Since you raise this unusual question, my only thought is Evinrude mentions the total output of the alternator in order to have a specification that is similar to other manufacturers of out...
by alloyboy
Wed Jan 06, 2016 9:57 am
Forum: SMALL BOAT ELECTRICAL
Topic: Evinrude Alternator Output
Replies: 10
Views: 6562

Re: Evinrude Alternator Output

Thanks. My question was with respect to the G2 Evinrude 250/300 models. 50-Amperes available to charge a battery, if needed, it is.

Anyone care to guess why the total output of the [alternator] is stated if, from a user's standpoint, it is mostly irrelevant? Or is it relevant?
by alloyboy
Tue Jan 05, 2016 3:55 pm
Forum: SMALL BOAT ELECTRICAL
Topic: Evinrude Alternator Output
Replies: 10
Views: 6562

Evinrude Alternator Output

The Evinrude website offers the following information: "133 Amps Total Output/ 50 Amps Net Dedicated." [This was later clarified to be in reference to the alternator specifications for an Evinrude E-TEC G2 engine--jimh] Is this saying 50 amps dedicated to run the motor with 83 amps being a...
by alloyboy
Tue Jan 05, 2016 3:53 pm
Forum: The GAM
Topic: Restarting Engine After Running Fuel Tank Dry
Replies: 11
Views: 12573

Re: Restarting Engine After Running Fuel Tank Dry

Unless you ran out of gas by just not paying attention, why would anyone let the fuel tank run dry on a truck? rich On a truck, would either be from not paying attention or from trying to stretch the range just a bit too much. I have started sweating a time or two wondering if I will be able to mak...
by alloyboy
Fri Jan 01, 2016 2:26 pm
Forum: REPAIRS and MODIFICATIONS
Topic: VERADO and Hydro-lock
Replies: 21
Views: 15088

Re: VERADO and Hydro-lock

I don't really see much correlation between procedures involved in operation of commercial, passenger-carrying, federally-regulated, multi-hundred-million-dollar modern jet aircraft and recreational boat operation by private boat owners. You're reading too much into the often misused phrase "f...
by alloyboy
Thu Dec 31, 2015 1:11 pm
Forum: REPAIRS and MODIFICATIONS
Topic: VERADO and Hydro-lock
Replies: 21
Views: 15088

Re: VERADO and Hydro-lock

Shifting from forward into reverse while the boat is traveling at speed is an operator error that can result in induced engine damage. It is not a warrantable defect. Unfortunately, we sometimes have to learn life's lessons the hard (and expensive) way. Wow, that's some seriously old-school custome...
by alloyboy
Thu Dec 24, 2015 8:41 pm
Forum: The GAM
Topic: Restarting Engine After Running Fuel Tank Dry
Replies: 11
Views: 12573

Re: Restarting Engine After Running Fuel Tank Dry

Allowing [the engine] to run without fuel to lubricate and cool [the electric pump] can cause damage to an electric fuel pump. If the boat tank is allowed to become empty then no gasoline will be pumped to the VST. The electric fuel pump may become damaged. Some are more lucky or less lucky than oth...
by alloyboy
Thu Dec 24, 2015 8:28 pm
Forum: REPAIRS and MODIFICATIONS
Topic: VERADO and Hydro-lock
Replies: 21
Views: 15088

Re: VERADO and Hydro-lock

Consider yourself lucky that you got the motor replaced at no charge the first time that it happened. Some Verado owners have not been so fortunate. Yamaha usually will cover the repair one time only with the caution that if it happens a second time the customer is on his own. This is a known and we...