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Johnson seahorse 7.5 model AD-11

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Ericschooner1

Member
racerone said:
You are funny.----I know that an AD-10 is a 1956 and AD-12 is a 58.----The only 3 years that they marketed those pressure tank 7.5 HP models.-----No more input from me.----Good luck sorting out your motor.
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I mentioned AD-11. But you had to ask what year it is. But I’m supposed to believe you worked on them. Model & Seriel numbers mean something on outboards.
 
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racerone

Gold Medal Contributor
You have no clue as to what I know about an AD-11----Bring it to me in 10 boxes.---Every nut and bolt tossed in there at random. ----Put it together in front of your eyes , without a glance at a manual !!------I step aside here for good.-----You will need to join the ---aomci----Lots of folks there who can teach you if you want to learn !!
 
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Ericschooner1

Member
racerone said:
You have no clue as to what I know about an AD-11----Bring it to me in 10 boxes.---Every nut and bolt tossed in there at random. ----Put it together in front of your eyes , without a glance at a manual !!------I step aside here for good.-----You will need to join the ---aomci----Lots of folks there who can teach you if you want to learn !!
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First you said to see if it’s soft and pliable then asked what year it is. First metal gaskets even used are not soft and pliable. Second you didn’t research AD-11 that’s what determines the year you didn’t know. You asked me. I don’t think you really know about vintage motors. Good day.
 
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Ericschooner1

Member
racerone said:
Your motor has poor compression on one cylinder.----Sim[ple / easy fix on my work bench !!
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Not a chance. Since you had to ask about what year it is even when a model number is provided means I won’t do that. Second if I was to do that I would ship it to T-Mike. He he has a you tube channel. He’s a professional on those years. He doesn’t do powerheads.
 
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Edchris177

Regular Contributor
Your first post stated, “I’m not sure what the problem is?”.
An individual who could rebuild your motor to new condition, without any reference to a book, or determine it is a parts motor, asked you for some information, in order to ascertain what the real problem was,without spending any money.
Your response showed you don’t understand basic engine operation, or how compression is achieved. If you’ve ever rebuilt one, you would know rings have to be compressed as the piston is inserted into the bore. This “springy” action keeps them tight against the cylinder wall. 2-strokes can suffer from carbon buildup in the piston groves, freezing/sticking the ring in the groove, or breaking, both resulting in poor compression.
The advice given was how to determine if you have stuck/broken rings, ( all manufacturers recommend using a product to ensure rings remain unfrozen, (research Yamaha ring free, Merc power tune etc). Your posts regarding , “metal is not soft & pliable”, shows you do not understand the advice being given, or how the rings do their job. If they are frozen/broken, they can look perfect, but are essentially useless. You have the covers off, & now have to purchase new gaskets…the tests recommended now cost ZERO, & gain much valuable information.
im not that smart of a guy, ive learned there are many much smarter than I in many subjects. When those folks tell me to try A-B, then C. I do it, in that order. It has saved me much grief & $$ over the years.
 
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Ericschooner1

Member
Edchris177 said:
Your first post stated, “I’m not sure what the problem is?”.
An individual who could rebuild your motor to new condition, without any reference to a book, or determine it is a parts motor, asked you for some information, in order to ascertain what the real problem was,without spending any money.
Your response showed you don’t understand basic engine operation, or how compression is achieved. If you’ve ever rebuilt one, you would know rings have to be compressed as the piston is inserted into the bore. This “springy” action keeps them tight against the cylinder wall. 2-strokes can suffer from carbon buildup in the piston groves, freezing/sticking the ring in the groove, or breaking, both resulting in poor compression.
The advice given was how to determine if you have stuck/broken rings, ( all manufacturers recommend using a product to ensure rings remain unfrozen, (research Yamaha ring free, Merc power tune etc). Your posts regarding , “metal is not soft & pliable”, shows you do not understand the advice being given, or how the rings do their job. If they are frozen/broken, they can look perfect, but are essentially useless. You have the covers off, & now have to purchase new gaskets…the tests recommended now cost ZERO, & gain much valuable information.
im not that smart of a guy, ive learned there are many much smarter than I in many subjects. When those folks tell me to try A-B, then C. I do it, in that order. It has saved me much grief & $$ over the years.
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He told me to use a screwdriver to see if it’s soft and pliable. Not springy. He didn’t even know the year Evan though I gave him the model number.
 
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Edchris177

Regular Contributor
Go back & read post 14. You were the one using “soft & pliable”, read post 19.
What he was telling you was exactly what you needed to do. I know for a fact this individual knows more about these motors than just about anyone on this forum. There are only about 4-5 older retired techs, with decades & thousands of hours experience, who really know how to diagnose, (doing the free stuff first), & fix them. Your post #27 shows you do not know what you are trying to do. If you want to argue with many years experience, don’t be surprised if they elect to bail out. I’m out.
 
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Ericschooner1

Member
Edchris177 said:
Go back & read post 14. You were the one using “soft & pliable”, read post 19.
What he was telling you was exactly what you needed to do. I know for a fact this individual knows more about these motors than just about anyone on this forum. There are only about 4-5 older retired techs, with decades & thousands of hours experience, who really know how to diagnose, (doing the free stuff first), & fix them. Your post #27 shows you do not know what you are trying to do. If you want to argue with many years experience, don’t be surprised if they elect to bail out. I’m out.
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He said to see if it’s soft and pliable. I took that as being rubber. Then he started arguing. And he still didn’t know what year it was. I gave him the model number. If he’s experienced he shouknow what year that was
 
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Edchris177

Regular Contributor
No, he did not. He stated, & I quote, “Push on rings with small screwdriver ?----Are rings free and springy ?”
YOU stated metal was not soft & pliable, indicating you don’t know what you’re doing, maybe this is the 1st motor you’ve worked on? Read your post #23 and #25).
You are still arguing, instead of learning. You were told one cylinder has low pressure. instead of figuring out the root cause of low pressure you chose to argue.
im leaving, for good.
 
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