Johnson 6 HP longshaft motor

Status
Not open for further replies.

Mac

.
Jun 7, 2006
436
MacGregor 25 KEUKA lake NY
I need your imput. I used this motor on my Mac 25 all last summer and it ran really well. It is a 1978 and I paid 150.00 for it. My question is, should I do some maintanence to it such as impellar replacement, coils, power pack (I don't think it has points) and a new prop? I'm planning on going downt the Erie canal from Rochester to Onieda Lake and back. I don't want this kicker to die on me. Maybe I should pick up the parts and have them ready on the trip and replace them if they should fail.. Thanks for your imput. Mac
 
May 11, 2005
3,431
Seidelman S37 Slidell, La.
I would

I would certainly replace the impeller, and the plugs. If the old ones look good, then keep them for spares, otherwise buy extra's for spares. Other than that, I am kind of in the old school of it if ain't broke don't fix it. If the prop isn't damaged it should be fine, of course an extra could be good insurance. I once got a plastic ice bag around the lower unit, blocking the intake and ruining a water pump, so a spare impeller is always a good thing to have.
 

RichH

.
Feb 14, 2005
4,773
Tayana 37 cutter; I20/M20 SCOWS Worton Creek, MD
Basic spare parts

Even if you dont know how to do the repairs, having the major parts will allow a local mechanic to expedite such a repair if you need. Impeller points and capacitor('condenser') Prop key (breakaway) - spare. Head Gasket Carb. rebuild kit. gear case gaskets and seals Spare pull cord, etc. Spare spark plugs There are many suppliers for Johnson/Evinrude: eg. www.marineparts.com/partspages/johnsonevinrude.htm
 

caguy

.
Sep 22, 2006
4,004
Catalina, Luger C-27, Adventure 30 Marina del Rey
Make sure you have an extra shear pin and cotter key.

Mine sheared last week, easy to replace but without one you won't go anywhere. I carry extra plugs just in case they foul out. Check the impeller. Mine is 20 yrs old but was still in good shape, I have heard of others swelling up. I also carry an extra prop., gas filters and tools specific to repairing the motor. I also carry a can of hot shot and hose clamps. I had to replace the gas line hose last summer. Other than that the old adage, "if it ain't broke don't fix it," applies. Frank
 

Mac

.
Jun 7, 2006
436
MacGregor 25 KEUKA lake NY
I took the plugs out

and they seemed wet and black. Is it hard to replace the impellar? Are there any illustrations on the net on how to replace this? I don't have a manual, but would like to purchase one if anyone has one laying around. I will carry extra plugs, shear pin, the prop is ok but it has some pitting on it and a small chunk missing. Also, there is some play on the shaft when you wiggle the prop. Thanks to all who helped!! Mac
 
May 24, 2004
7,213
CC 30 South Florida
IF you are going on a trip go ahead and purchase

the parts and replace them. It will be easier on the dock or in a work bench rather than on the water. I would replace the spark plugs, propeller, the coils, bottom oil, fuel pump diaphram, fuel filter and the starter pull cord. Save the old parts as emergency spares. Chances are new parts will outlast the old ones. It is not always that way with electrical parts as I once replaced the coils on an engine and had to put one back after the replacement failed after a few hours. Make sure you get spark plugs in the same heat range. As I'm providing this advice I have to admit that I have not always practiced what I preach. I have dropped a prop and have also broken the pull cord on the water. It is also not fun to run an engine that does not idle well. All mishaps could have been avoided. Last trip we took we got the maintenace right and was a pleasure.
 
Jun 2, 2004
1,438
Oday 25 pittsburgh
Mac, two questions.

#1 if you have the parts on hand, do you have the knowledge to know what to replace and how to do it should something go wrong? #2 Do you have a GOOD (underlined and with much emphasis)motor mechanic that is not only good with repairs but forsight with your motor of things that fail? OK, it's your call! Have a great trip! r.w.landau
 

Mac

.
Jun 7, 2006
436
MacGregor 25 KEUKA lake NY
r.w. I think I can replace the parts

that are straight forward. Remove part and reverse order. Keep eye on wires, mark them if necessary. If I had to remove the head for a gasket, I may need the book and torque numbers. For the Impeller, it looks like I remove the 4 nuts and the bottom unit drops down? I did find an exploded parts fisc on the internet. Is this correct? I could do this on the work bench before the season. I like the idea of replacing the fuel pump diaphram as well. Thanks everyone. Mac
 

Ray T

.
Jan 24, 2008
224
Hunter 216 West End - Seven Lakes
Prop selection

I had a 1973 Evenrude 6 hp with a two blade prop on my Oday 23. I had problems motoring into a stiff breeze and a Chesapeak chop. I replaced the two blade with a three blade made by Evenrude there was a big difference in power and no decreas in speed. If you have a two blade you might consider a three blade. Good Luck, Ray T
 

Mac

.
Jun 7, 2006
436
MacGregor 25 KEUKA lake NY
Ray

I do have the 3 blade prop. I will replace it with a new 3 blade. thanks, Mac
 

Mac

.
Jun 7, 2006
436
MacGregor 25 KEUKA lake NY
Now I have to buy a manual

I took off the fuel lines and they felt stiff and split on the ends. So why I was at it, I thought I would take the fuel pump off and check it out. Well, little springs fell out and the diaphram looked alittle brittle, so now I have to rebuild it. Should I put an inline filter before the pump? Mac
 
Status
Not open for further replies.