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PROPULSION
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Looking for a parts supplier for that old
motor? And/or like looking up your own parts online?
Try our Supplier Reference page...Diesel engine reference guide is covered in another section. But,
electrical, drive train and operational equipment information, basically, pertains
to all power boats.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Some pages are in 
"PDF" format and require Adobe Reader.
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- Basic wiring
color codes.
- Power tune your motor, Holly Carb.
- Power Tune your motor, Quadra-jet.
- Weber carb repair series,
(incomplete)
- It needs a new Carburetor?
- Electric/Fuel pump
- Outboard fuel pump
basics
- Break it in right.
- Selecting a Propeller.
- Rubber Prop hub info
- OH, OH, Powerhead
failed...
- Overheating? Inboard or sterndrive
- Typical V8 Cooling System
- Typical V8 Closed-Cooling
- What's it called? Drive Shaft Info.
- Basic Impeller Information
- Water in cylinders or oil? 4 stroke motor
- Oil n Lube Basic Information
- OB oil Shoot-Out
- Salt
water and your engine
- Inboard Wet Exhaust the basics
- Inboard Wet Exhaust article
- Wont shift? sterndrive mechanical
- Typical Sterndrive Shift Diagram.
- Typical Firing orders. Ford - GM
- Ignition Distributor "Type"
Identification; by manufacturer.
( Ford and GM V8, except EFI )
- Still fiddling with points?
- And what about that point spring?
- Champion Sparkplug code chart
- NGK Sparkplug code chart
- Sparkplug Problems?
- Don't slap those spark plugs in
- Compression Test Chart
- Tune-up spec sheets
Motors covered: Mercruiser, OMC, Volvo, Chrysler, Atomic4, Yanmar, Crusader, US Marine
- Delco EST Ignition Timing
- Wiring EST w/Electric fuel pump
- Engine Wiring MSTS
- MSTS wiring diagram
- MSTS ECM diagram
- Adjusting valves on a GM engine
- * Fel-Pro 454 Head gasket warning
- Fel-Pro gasket installation tips
- What happened to that Starter?
- Starter solenoid plunger Samples.
- Starter shim kit information, and general bendix trouble
shooting
- GM-CSI-ALT Rebuild information
- Hydraulic Steering (not power steering)
- 735 Dual Digital Tach/Sync Info.
- BorgWarner Velvet Drive Trans
- 71c-72c
classifications-ratings
- 71c-72c
specifications
- 71c-72c
owners manual
- 5000
series class & ratings
- 5000
series specifications
- 5000
series owners manual
- Liberty
5000 series brochure
- Hurth Transmission
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And what about EFI.
It's no mystery. It's precise approach to fuel delivery removes the guess work. Either,
each component is functioning properly, or most likely the whole system won't work. It
also has the ability to tell you what is wrong. (sometimes) Testing just means finding out
what it is telling you. Need the wiring
diagram?
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Also, See MEFI 4 & 5 below
and to the left.
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Did you ever wonder
what are the major influences that affect your boat and engines performance ? Here's
the quickie list concerning engine output and the final result of overall
boat performance.
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This has nothing to do with boat engines but we enjoy the scenery.
She probably wouldn't be walking on a beach if she found someone
with a nice running fish boat..:~] |
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Engine Spec Sheets & Line Drawings,
to the left, are for 2009 and above GM marine product.
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- Onan Control-O-Matic Generators are in an awful lot of boats.
They are actually easy to keep running. It was the simplicity of the design that also made
it affordable.
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Delphi MEFI System
Engine Spec Sheets & Line Drawings
901M-01SD JET PUMP
Transmission Spec sheets and line
drawings
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Still
Love your OMC/ Johnson/Evinrude
Product?
Then click their logo. |
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The worst has happened. Your boat sank or the engine back filled with sea
water. You have her floating, but what's next....
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Have
a bunch of questions about your Mercury and/or Mercruiser product?
Click above.
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We
have some
basic support for Chrysler/Force motors.. Surprised?.. there is still a lot of these
engines out there.
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Volvo
owners typically love their Volvos but they actually need repair from
time to time. |
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.gif)
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Made in America
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Check out The Biopsy Page , where you'll see all the fun and
adventure of a boat mechanic. It contains illustrations and text for some of the
interesting moments of the "Marinemechanic.com guy."
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Over the last 25
years, or so, we have constantly asked the manufacturers if they tested and or recommended
any type of oil additive. Usually the answer was that additives weren't needed in
their engines, just follow the maintenance requirements and you won't have any
trouble.
As the horsepower outputs went higher and higher, each passing year, our concerns of
the oil's ability to hold up to the average user grew with them.
We can't tell you about Prolong or Slick 50, but Johnson's LL-5 has unofficially, become
the additive of choice for several of the top High Performance engine builders.
We've been putting it in all the supercharge stuff we service, and they don't seem to
break down due to oil failures, but we wouldn't call our experience the
definitive test bed for oil additives. Basically, we haven't scientifically tested
any of the stuff we use it in, because, we haven't had to tear any of them down, due to
oil failure. Maybe, a good thing....
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Cam problems?
Johnson LL5 Engine pre-lube, engine oil additive from Sealed Power.
Mercruiser part # 92-801779 |
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Also,
see our engine oil and lube FAQ page. |
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Who's the loneliest guy
in the boat business? It's poor Mr. Carb Filter. All his friends like, Mr. Water
Separator, and Mr. Oil filter seem to get all the attention. He sits lonely and dark in
his little home, waiting. And then one day he eats too much and he puts a stop to all the
traffic going thru his home. If this didn't give Mr. Piston an overheating complex,
then I guess it wouldn't be such a big deal. So, don't ignore Mr. Carb Filter....
Note: pictured is a Rochester, but almost all brands have one built into the carburetor.
Unfortunately, some of the newer ones have a final filter built into the needle and seat,
and service requires removing the top half of the carburetor. (Check your service manual.)
Note: Not all carburetor filters incorporate a "check valve"
as depicted in the diagram. Screen type filters are cleanable and
re-usable, in many cases.
Additional Note: Excessive/consistent
re-occurrence of grayish brown dried powder in this filter probably
indicates "MTBE" residual build-up being cleaned from the
fuel system of the boat. Current ethanol blended fuels are really good
at cleaning a fuel system.
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