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Old 24 June 2008, 13:40   #1
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55 Yamaha Gear Help!!!

Hi

Could some one please give me some advice

What does it mean when a gear box is slow going in to gear? Is this a big problem? Is this a problem that will get worse? Can it be fixed? The gear box is on a yam 55 BE.


Thanks for the help
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Old 24 June 2008, 17:37   #2
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Originally Posted by EllWilcox View Post
Hi

Could some one please give me some advice

What does it mean when a gear box is slow going in to gear? Is this a big problem? Is this a problem that will get worse? Can it be fixed? The gear box is on a yam 55 BE.


Thanks for the help
I'd help if I could but your description is too vague to offer anything other than vague answers. What EXACTLY happens?
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Old 24 June 2008, 17:58   #3
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Sounds like the clutch dog is worn, but as NoS says, more info please
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Old 24 June 2008, 19:18   #4
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Thats all i know that it is slow going in and out of gear or may be it has a bit of trouble going in an out of the gears etc i am not too sure, it works and has new bearings thats all the info i got. Can anyone think of if its a bad problem or anything like that?? or even what it is that is up??

Thanks if you can help
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Old 24 June 2008, 22:34   #5
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Originally Posted by EllWilcox View Post
Thats all i know that it is slow going in and out of gear or may be it has a bit of trouble going in an out of the gears etc i am not too sure, it works and has new bearings thats all the info i got. Can anyone think of if its a bad problem or anything like that?? or even what it is that is up??

Thanks if you can help

If it's been pulled apart and has new bearings in then either he knows exactly what's wrong with it and it's had it or he's a numpty you shouldn't be buying a gearbox from.
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Old 25 June 2008, 05:43   #6
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Slow going into gear. There's slow and there's the "crunch - bang" of a knackered dog / shift crank, whether going in or drpping out as you accelerate. If the seller is not technically minded they may be talking about the feeling at the lever on the remote - "Slow" might just be his cables are well past their "lubricate by date", and would be how someone might describe the feeling of a sticky selector lever? That would also if the dog was moving slowly give you a good old rattle as it engages.......

Now, assuming no coo poo on behalf of the seller, and it does have a load of new bits, if you go to see it, disconnect the gear cable inside the engine & see if the shift lever is any easer to move. That will tell you whether it's an engine or remotes / cable problem.


Now, linking this to previous threads, would I be right in thinking you have a siezed engine with a good gearbox? In which case, if the head is good, the state of this gearbox could become irrelevant if you have a good one to do a swap of the 'boxes......It will also give you some haggling power if the box is "dubious"......
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Old 25 June 2008, 13:41   #7
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Yes you have guessed correctly, but there is a slight difference. I have a yamaha 55 A with a seized head and a good gear box and i have found a yamaha 55 B with a good head with no gear box. Then i found a blown yamaha 55 B with a good gear box but the guy said it was slow going in to gear or something!?. The thing is i do not know if the yam55 A gear box will fit the good yam 55 B!?? that was my question that nobody answered so if you know please let me know?? So then i found this blown yam55 B with the "slow" gear box and do not know if this could be a good move to get for the good yam55 B.

So basically this is where i am at, i do not have loads of money to get a new one as i am a student who has just finished uni, so i believe getting a yam55 back together is a good move.
So if you know of any of my questions from above please let me know. The main one which would solve a lot of hassle is whether the yam55 A gear box would fit a yam55B!? I have phoned dealers and they can't give me a straight answer, they just say it might, so i think i am probably just gonna have to take the gamble. Someone sent me like an old mariner link to parts an stuff but i could not work it out as i was hoping for the simple answer.


If you or anyone could help it would be sweet as a nut!!

Thanks
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Old 26 June 2008, 04:56   #8
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OK, I have a plan......Not particularly scientific, but it might give us some pointers until we can find a microfiche.

Plan A - There is a chance that there will be a part number somewhere on the outside of your gearbox. Problem is I'm nowhere near the boat & I may be thinking of my old Suz. Mine's a B, so if you can find a number, I'll try to get connected sometime at the wekeend if I can find a number on my gear casing. If they're the same then I think it's safe to assume they are interchangeable.

Plan B - Can you take some "mug shot" photos of your gearbox, ideally with a ruler or similar in the pic to scale off. Granted that won't tell us of any internal differences, but putting my manufacturing hat on, the cost of tooling up or something like that isn't going to be cheap, so there's a reasonable chance it will fit if the exterior stuff is identical.


A couple of dealers I've found more helpful than most are Yampower in Shettleston (Glasgow) 0141 778 5384 and Mitchell outboard services in Renfrew 0141 886 4222 . Might be worth giving them a call, the worst they can say is "dunno".
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Old 26 June 2008, 05:32   #9
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I've got some 55 twin part numbers but they are from the C55 range which are later (round mid 90s)

697-45311-01-4D is the C55 gearcase

697-45311-00-EK is the C55ELRR gearcase

697-45311-01-EJ is the C55ERP gearcase
Thing is, I think the case itself is the same and should be interchangeable-just the driveshaft being different for different shaft lengths.
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Old 26 June 2008, 08:27   #10
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All this swapping bits of motors about is fine if you're mechanically experienced and know what you're doing. Otherwise, you could end up spending a lot more, paying someone to put things right.
I suspect you'd be better off flogging your engine for spares and putting a bit of extra cash with it to buy a decent used motor.
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