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8122pbrainard View Drop Down
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    Posted: April-08-2012 at 9:54pm
Originally posted by GlassSeeker GlassSeeker wrote:

can this dirty nuetral happen from a badly adjusted/out of adjustment shifter cable? not going all the way into nuetral? I'm just wondering.

Andy,
Not really. You need to understand how the marine trans really works. The shift lever is attached to a valve body that routes oil and it's pressure to activate the clutch packs. It's not like a manual trans where the foot clutch is mechanically moving a clutch plate.


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can this dirty nuetral happen from a badly adjusted/out of adjustment shifter cable? not going all the way into nuetral? I'm just wondering.
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8122pbrainard View Drop Down
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Originally posted by dyn dyn wrote:

dex II or dex III?
It is possible that with the change of oil will reduce the slipping?

I highly doubt it. The clutch plates are already warped.


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dyn View Drop Down
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dex II or dex III?
It is possible that with the change of oil will reduce the slipping?
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If you change from oil to ATF, drain & refill at least 3 times to flush it. (Run it some each time, of course) It is best to manually drain the cooler & lines by unhooking them.
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8122pbrainard View Drop Down
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Originally posted by dyn dyn wrote:

So, which oil for my links are the best choice?

Originally posted by kapla kapla wrote:

I know early trans called for straight 20w. but its more common to run them with Automatic Transmission Fluid (ATF) TYPE DEX/MERC III, regular , no synthethic.

On the tranny you are having a dirty neutral. There´s no fix for that. Looks like you will need a rebuilt in the near future. Use it like that until it gets worst...


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dyn View Drop Down
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So, which oil for my links are the best choice?
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8122pbrainard View Drop Down
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Luka,
Eric is the best with the trans's. It's his business. He stated your problem very well. The bottom line is you need a rebuild.


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eric lavine View Drop Down
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Points: 13413 		Post Options Post Options   Thanks (0) Thanks(0)   Quote eric lavine Quote  Post ReplyReply Direct Link To This Post Posted: April-05-2012 at 8:27am
btw, slipping is not normal, that is the root cause of a dirty neutral
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eric lavine View Drop Down
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Points: 13413 		Post Options Post Options   Thanks (0) Thanks(0)   Quote eric lavine Quote  Post ReplyReply Direct Link To This Post Posted: April-05-2012 at 8:26am
true cause is from the forward clutch pack slipping and the plates cannot dis-appate the heat quickly enough, thus the heat captured in the plates will cause them to warp, the forward pack runs on about .018 clearance which means when assembled correctly you can put an .018 feeler blade between the clutch plate stack up. when the plates warp you lose that .018 clearance and now the plates are actually touching eachother and will cause the transmission to drag...orst case scenary would be the plates welding themselves together and then the transmission will lock into forward and at times stall the engine when puttin into revers because you are locking the transmission up
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kapla View Drop Down
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i'd stick to the dex merc fluid.

as for the dirty neutral not sure whats the cause, probably eric will explain it better than me...
<a href="">1992 ski nautique
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What year is your transmission?

Also, I've seen PCM and B/W transmissions turn slightly forward while in neutral. My '96 has always turned forward slightly when starting (both the original transmission and a brand new one--the original one had some external torque stress, nothing internal, so replaced). It seems that they will sometimes turn slightly when in neutral (also experienced it with an old BW 1:1 in a different brand tournament boat many years ago).

Kapla, what is the cause of a dirty neutral? I don't know enough about these transmissions, but I am assuming that the plates are somehow not separating enough. Still, that doesn't explain why I get some turning at start up, even with a new transmission.

My transmissions was filled with Dextron III when it was new, even though the manual said 20w oil. Does anyone know if you can easily switch or have had experience switching from 20W to Dex/Merc type III? That would be helpful for everyone to know.
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kapla View Drop Down
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I know early trans called for straight 20w. but its more common to ran them with Automatic Transmission Fluid (ATF) TYPE DEX/MERC III, regular , no synthethic.

On the tranny you are having a dirty neutral. There´s no fix for that. Looks like you will need a rebuilt in the near future. Use it like that until it gets worst...
<a href="">1992 ski nautique
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dyn View Drop Down
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Hi, i have a problem whith my transmisson.
In neutral the boat move forwards, the propeller moves...
It maybe because the wrong oil in the trans?

Is better to use:
Titan Universal HD SAE 20W-20 API CF-4/SG
or
20W-20 Super Dynamic API SJ/CF-4/CF, ACEA A3/B3, A3/B4, E2
or
http://www.silkoleneoil.com/products/136/710oil-transmission-oils.aspx


tnx for the answers and sorry for my bad english...
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