I don't have a manual for my 4 stroke 4hp Yamaha OB. I want to change the impeller. (had dealership do it last time) Can someone let me know how the lower unit comes apart, what to watch for and any hassles or pitfalls I can avoid. Any help would be appreciated. Tim
You can go on line and download the manual I think. I changed my impeller this summer. The only tricky part is reinstalling the lower unit. You have to push the drive shaft and the shifter link up into the right places at the same time. There is a hole in the side of the housing that is plugged with a rubber stopper. You remove that and loosen a clamp that holds the two pieces of the shifter rod together. Then, when reassembling, you have to get the lower piece back into that clamp as you also get the drive shaft into the splined hole in the crankshaft. It's kinda like rubbing your head and patting your stomach at the same time. Good luck. --Gary Hyde 2005 M17 sailboat #637 'Hydeaway 2' We can't change the wind, but we can trim our sails. Sailing is like "African Queening" thru life. On Oct 16, 2008, at 4:50 PM, Tim Diebert wrote:
I don't have a manual for my 4 stroke 4hp Yamaha OB. I want to change the impeller. (had dealership do it last time)
Can someone let me know how the lower unit comes apart, what to watch for and any hassles or pitfalls I can avoid. Any help would be appreciated.
Tim _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Thanks Gary, Dave and Gary. All good info. Anyone with the same motor and issue will find this link handy. Thanks to Gary O: http://www.youtube.com/watch?v=ZB0ztSvLqig I will be all over that rascal this weekend. Tim ============================= You can go on line and download the manual I think. I changed my impeller this summer. The only tricky part is reinstalling the lower unit. You have to push the drive shaft and the shifter link up into the right places at the same time. There is a hole in the side of the housing that is plugged with a rubber stopper. You remove that and loosen a clamp that holds the two pieces of the shifter rod together. Then, when reassembling, you have to get the lower piece back into that clamp as you also get the drive shaft into the splined hole in the crankshaft. It's kinda like rubbing your head and patting your stomach at the same time. Good luck. --Gary Hyde 2005 M17 sailboat #637 'Hydeaway 2' We can't change the wind, but we can trim our sails. Sailing is like "African Queening" thru life. On Oct 16, 2008, at 4:50 PM, Tim Diebert wrote:
I don't have a manual for my 4 stroke 4hp Yamaha OB. I want to change the impeller. (had dealership do it last time)
Can someone let me know how the lower unit comes apart, what to watch for and any hassles or pitfalls I can avoid. Any help would be appreciated.
Tim _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
_______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.173 / Virus Database: 270.8.1/1731 - Release Date: 10/17/2008 7:01 PM
I have found something I can't explain. I have a brand new Tohatsu 6 with a brand new tank and brand new fuel line. The last two times I took Seafrog out, I had trouble pumping fuel to the engine. I disconnected the fuel line from the engine, pushed in the springloaded release and pumped. Nada. Then I disconnected it at the tank thinking the fuel pickup wasn't down into the fuel. That's when I saw this yellow thick flem in the pickup tube. I shook it out and replaced the fuel line into the tank. I pumped the bulb while holding in the springloaded valve and it pumped out more of this yuck. The gas is fresh. Is there a possibility that this is an ethanol issue? Joe Seafrog M-17
I had a similar problem with my Yamaha 70 on a cabin cruiser I owned in Germany. It is very disconcerting to lose power on a swiftly flowing river like the Donau (danube). The mechanic at the marina said it was water combining with fuel additives that created the gel. Let me assure you, it is a lot easier to dump, clean and refill an outboard tank than than two 70 liter built in tanks. Ron M17 #14 Griselda > From: seagray@embarqmail.com> To: montgomery_boats@mailman.xmission.com> Date: Sat, 18 Oct 2008 10:02:56 -0400> Subject: M_Boats: Yellow flem in my fuel line> > I have found something I can't explain. I have a brand new Tohatsu 6 with a > brand new tank and brand new fuel line. The last two times I took Seafrog > out, I had trouble pumping fuel to the engine. I disconnected the fuel line > from the engine, pushed in the springloaded release and pumped. Nada. Then > I disconnected it at the tank thinking the fuel pickup wasn't down into the > fuel. That's when I saw this yellow thick flem in the pickup tube. I shook > it out and replaced the fuel line into the tank. I pumped the bulb while > holding in the springloaded valve and it pumped out more of this yuck. The > gas is fresh. Is there a possibility that this is an ethanol issue?> Joe> Seafrog M-17 > > > _______________________________________________> http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats _________________________________________________________________ Store, manage and share up to 5GB with Windows Live SkyDrive. http://skydrive.live.com/welcome.aspx?provision=1?ocid=TXT_TAGLM_WL_skydrive...
My motorcycle mech said that the Gas we get now is luck to last a month.? He said the stuff they us is not like the Old days when you could leave it all winter and just add some new and go.? Maybe it's a sign of the times??? At your service Larry Pegg 208 249 0538 -----Original Message----- From: Joe Murphy <seagray@embarqmail.com> To: For and about Montgomery Sailboats <montgomery_boats@mailman.xmission.com> Sent: Sat, 18 Oct 2008 8:02 am Subject: M_Boats: Yellow flem in my fuel line I have found something I can't explain. I have a brand new Tohatsu 6 with a brand new tank and brand new fuel line. The last two times I took Seafrog out, I had trouble pumping fuel to the engine. I disconnected the fuel line from the engine, pushed in the springloaded release and pumped. Nada. Then I disconnected it at the tank thinking the fuel pickup wasn't down into the fuel. That's when I saw this yellow thick flem in the pickup tube. I shook it out and replaced the fuel line into the tank. I pumped the bulb while holding in the springloaded valve and it pumped out more of this yuck. The gas is fresh. Is there a possibility that this is an ethanol issue? Joe Seafrog M-17 _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
My outboard mechanic told me something very similar recently. He recommended "no more then six months". Could this really be true? If so, the Coast Guard is going to be mighty busy rescuing sport fishermen next season. Jim M17 "Spirit" On Oct 18, 2008, at 8:14 PM, larrypegg@aol.com wrote:
My motorcycle mech said that the Gas we get now is luck to last a month.? He said the stuff they us is not like the Old days when you could leave it all winter and just add some new and go.? Maybe it's a sign of the times???
At your service
Larry Pegg
208 249 0538
-----Original Message----- From: Joe Murphy <seagray@embarqmail.com> To: For and about Montgomery Sailboats <montgomery_boats@mailman.xmission.com> Sent: Sat, 18 Oct 2008 8:02 am Subject: M_Boats: Yellow flem in my fuel line
I have found something I can't explain. I have a brand new Tohatsu 6 with a brand new tank and brand new fuel line. The last two times I took Seafrog out, I had trouble pumping fuel to the engine. I disconnected the fuel line from the engine, pushed in the springloaded release and pumped. Nada. Then I disconnected it at the tank thinking the fuel pickup wasn't down into the fuel. That's when I saw this yellow thick flem in the pickup tube. I shook it out and replaced the fuel line into the tank. I pumped the bulb while holding in the springloaded valve and it pumped out more of this yuck. The gas is fresh. Is there a possibility that this is an ethanol issue? Joe Seafrog M-17
_______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
_______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Sooner or later (if it hasn't already happened) someone is going to lose their life due to ethanol related fuel problems. If at all possible, don't use it. Here in Oregon it can be legally sold at Marina's and airports and a few specialty fuel suppliers. It costs about 50¢ to 75¢ more per gallon but it's lots cheaper than fixing ethanol related problems at $75/hr plus parts! I know lots of guys who are having major problems with their dirt bikes and other small engines that may not get run regularly. Most are getting wise and finding non-ethanol fuel supplies. It's even worse in a marine environment. My local boat mechanic has had a huge increase in business all because of fuel problems. From what I have been able to glean from him and his customers it looks like anything more than 30 days will really be pushing your luck with ethanol. If you have more than 5% water in your fuel tank, the ethanol will phase separate within a matter of days and that is the source of the gelatinous substance that people are finding in their fuel systems. Some of the additives appear to help a bit but nothing will put phase separated fuel back together and they won't help if you already have much water in your tank. Running the tank dry at the end of each outing may help as well, but you still don't get all the fuel out of the float bowl. The best thing is to avoid using it if you possibly can. You never know when your life (or at least your boat) may depend on your motor running when you really need it. I'll keep clear of the discussion of the politics behind this mess, it sickens me. Well that's my 2¢ worth. Mark Dvorscak M23 Faith
boat US has put out a lot of print on ethanol mixed gas and boats. example - http://www.boatus.com/seaworthy/ethanolwinter.asp more can be found by searching the boatus.com www-site. my 'system' for the honda 2H is to: * run the engine's 'bowl' dry at trip's end. * fill the motor's fuel tank FULL * all fuel left in the 'jerry cans' is used by the tow vehicle on the trip home. i've not had an issue these past three years (knock on wood). dave scobie M15 #288 - SCRED visit Scred's www-site: http://www.freewebs.com/m15-named-scred On Sat, 10/18/08, Joe Murphy <seagray@embarqmail.com> wrote: I have found something I can't explain. I have a brand new Tohatsu 6 with a brand new tank and brand new fuel line. The last two times I took Seafrog out, I had trouble pumping fuel to the engine. I disconnected the fuel line from the engine, pushed in the springloaded release and pumped. Nada. Then I disconnected it at the tank thinking the fuel pickup wasn't down into the fuel. That's when I saw this yellow thick flem in the pickup tube. I shook it out and replaced the fuel line into the tank. I pumped the bulb while holding in the springloaded valve and it pumped out more of this yuck. The gas is fresh. Is there a possibility that this is an ethanol issue? Joe Seafrog M-17 __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
participants (8)
-
Gary M Hyde -
James Poulakis -
Joe Murphy -
larrypegg＠aol.com -
Roberta Dvorscak -
Ronnie Keeler -
Tim Diebert -
W David Scobie