Posted by Bob Frew (rfrew@…>)
I have recently added a maxprop to my f32. on our
second trip out on saturday to Block Island our engine
started to act up and eventually cut out. I check the
engine all was well so I started it up and ran it slow
but it eventually cut out.
My question is wheither the maxprop was set to high
for the engine or? any ideas would be appreciated.
Bob, Freespirit, Mystic F32
Posted by Brain Guptil (sailordude@…>)
F32 Overheat
The three major indications of wrong pitch/diameter propeller are
Overpithed/size
black smoke at higher RPM,s and not achieving rated RPM at wide open throttle.
Underptich/size
achieve rated RPM, but unable to reach expected speed.
Overheat is usually a sea-water flow problem, restriction of piping, clogged filter, degradation of sea-water pump, or restrictions in the heat exchanger. Also, on the Yanmar GM series, the exhaust elbow, being cast iron, rusts and scales, blocking the exhaust.
Much more rarely, fresh water system has a problem, pump fail, low water or other problem.
If you have used the recommended pitch/diameter from PYI, those numbers worked on my F32 Dolphin, some years back.
Brian
-----Original Message-----From: freedomyachts2003@yahoogroups.com [mailto:freedomyachts2003@yahoogroups.com] On Behalf Of Bob FrewSent: Sunday, August 27, 2006 9:18 AMTo: freedomyachts2003@yahoogroups.comSubject: Re: [freedomyachts2003] engine overheating
I have recently added a maxprop to my f32. on oursecond trip out on saturday to Block Island our enginestarted to act up and eventually cut out. I check theengine all was well so I started it up and ran it slowbut it eventually cut out.My question is wheither the maxprop was set to highfor the engine or? any ideas would be appreciated.Bob, Freespirit, Mystic F32
Posted by jerry weinraub (zayde@…>)
If it just cut out,it is unlikely to be overheating. Did the alarm go off? If not,check the fuel filters.
----- Original Message -----
From: Bob Frew
To: freedomyachts2003@yahoogroups.com
Sent: Sunday, August 27, 2006 9:17 AM
Subject: Re: [freedomyachts2003] engine overheating
I have recently added a maxprop to my f32. on oursecond trip out on saturday to Block Island our enginestarted to act up and eventually cut out. I check theengine all was well so I started it up and ran it slowbut it eventually cut out.My question is wheither the maxprop was set to highfor the engine or? any ideas would be appreciated.Bob, Freespirit, Mystic F32
Posted by Norm Friberg (nfriberg@…>)
Don’t overlook the obvious. The thermostat (if equipped) is the easiest and cheapest thing to check and to fix.
Norm Friberg
----- Original Message -----
From: Brain Guptil
To: freedomyachts2003@yahoogroups.com
Sent: Sunday, August 27, 2006 9:36 AM
Subject: RE: [freedomyachts2003] engine overheating
F32 Overheat
The three major indications of wrong pitch/diameter propeller are
Overpithed/size
black smoke at higher RPM,s and not achieving rated RPM at wide open throttle.
Underptich/size
achieve rated RPM, but unable to reach expected speed.
Overheat is usually a sea-water flow problem, restriction of piping, clogged filter, degradation of sea-water pump, or restrictions in the heat exchanger. Also, on the Yanmar GM series, the exhaust elbow, being cast iron, rusts and scales, blocking the exhaust.
Much more rarely, fresh water system has a problem, pump fail, low water or other problem.
If you have used the recommended pitch/diameter from PYI, those numbers worked on my F32 Dolphin, some years back.
Brian
-----Original Message-----From: freedomyachts2003@yahoogroups.com [mailto:freedomyachts2003@yahoogroups.com] On Behalf Of Bob FrewSent: Sunday, August 27, 2006 9:18 AMTo: freedomyachts2003@yahoogroups.comSubject: Re: [freedomyachts2003] engine overheating
I have recently added a maxprop to my f32. on oursecond trip out on saturday to Block Island our enginestarted to act up and eventually cut out. I check theengine all was well so I started it up and ran it slowbut it eventually cut out.My question is wheither the maxprop was set to highfor the engine or? any ideas would be appreciated.Bob, Freespirit, Mystic F32
Posted by george herchenroether (g.herk@…>)
I have had only one such experience and it was after installing a folding prop. The prop was too large and resulted in all the symptoms you cite.
On 8/27/06 11:24 AM, “Norm Friberg” <nfriberg@…> wrote:
\
Don’t overlook the obvious. The thermostat (if equipped) is the easiest and cheapest thing to check and to fix.
Norm Friberg
----- Original Message -----
From: Brain Guptil mailto:sailordude@...
To: freedomyachts2003@yahoogroups.com
Sent: Sunday, August 27, 2006 9:36 AM
Subject: RE: [freedomyachts2003] engine overheating
F32 Overheat
The three major indications of wrong pitch/diameter propeller are
Overpithed/size
black smoke at higher RPM,s and not achieving rated RPM at wide open throttle.
Underptich/size
achieve rated RPM, but unable to reach expected speed.
Overheat is usually a sea-water flow problem, restriction of piping, clogged filter, degradation of sea-water pump, or restrictions in the heat exchanger. Also, on the Yanmar GM series, the exhaust elbow, being cast iron, rusts and scales, blocking the exhaust.
Much more rarely, fresh water system has a problem, pump fail, low water or other problem.
If you have used the recommended pitch/diameter from PYI, those numbers worked on my F32 Dolphin, some years back.
Brian
-----Original Message-----
From: freedomyachts2003@yahoogroups.com [mailto:freedomyachts2003@yahoogroups.com] On Behalf Of Bob Frew
Sent: Sunday, August 27, 2006 9:18 AM
To: freedomyachts2003@yahoogroups.com
Subject: Re: [freedomyachts2003] engine overheating
\
I have recently added a maxprop to my f32. on our
second trip out on saturday to Block Island our engine
started to act up and eventually cut out. I check the
engine all was well so I started it up and ran it slow
but it eventually cut out.
My question is wheither the maxprop was set to high
for the engine or? any ideas would be appreciated.
Bob, Freespirit, Mystic F32
\
\
Posted by Dave Evans (dave@…>)
Bob,
You don’t mention anything about overheating in your question. Did the
temperature alarm go off? The wrong prop pitch could cause you to over
or under rev to get the speed you expect, perhaps with the smoke
singnals others have mentioned, but not overheating.
What you describe sounds very much like dirt in the fuel tank/filter.
dge
— In freedomyachts2003@yahoogroups.com, Bob Frew <rfrew@…> wrote:
I have recently added a maxprop to my f32. on our
second trip out on saturday to Block Island our engine
started to act up and eventually cut out. I check the
engine all was well so I started it up and ran it slow
but it eventually cut out.
My question is wheither the maxprop was set to high
for the engine or? any ideas would be appreciated.Bob, Freespirit, Mystic F32