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kapla 
Grand Poobah 
Joined: March-27-2008 Location: BA, Argentina Status: Offline Points: 6148 |
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 Topic: Tranny issuePosted: March-31-2008 at 4:25pm |
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Hi this is my situation with my power plus 1.23 tranny. When I go reverse and then to neutral the transmission stays idling in reverse. It wont go to neutral unless I give a little strike forward or if I idle in neutral gear. I guess its cable regulation as apart from that the tranny doesnŽt slip. Oil is changed every 100hs. Thanks Sebastian
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TRBenj
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Joined: June-29-2005 Location: NWCT Status: Offline Points: 21184 |
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Posted: March-31-2008 at 4:46pm |
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Sounds like a cable adjustment issue to me as well. Try removing the cable from the trans and try operating it by hand to see how it feels.
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kapla
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Joined: March-27-2008 Location: BA, Argentina Status: Offline Points: 6148 |
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Posted: March-31-2008 at 4:54pm |
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I bougth a new set of trans and throtle cables so IŽll post back when installed to let you know if problem was solve...
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<a href="">1992 ski nautique
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eric lavine
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Joined: August-13-2006 Location: United States Status: Offline Points: 13413 |
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Posted: March-31-2008 at 10:25pm |
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if this ends up not being the problem, first and foremost always check the cables as indicated.
these trannys have 4 basic problems 1. water inside causing complete failure, which is not the case here 2. cracked forward drum, wont cause the problem you have 3. ring gear for reverse plantary comes loose and you completely loose reverse 4. reverse return snap ring land breaks and you get drag in nuetral (most likely if cable is in adjustment) oil changes will not effect breakage, you really have to watch the forward to reverse shifting on these transmissions, make it a habit to shift into nuetral letting the prop stop and then shift into the other range within the means of being safe, remember the prop is spinning one direction and you nuetral skip and it allows the prop to do a complete 180, i know someone is thinking this is a ski boat and you are suppose to do this....this will add many hours to the transmissions life |
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"the things you own will start to own you"
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eric lavine
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Joined: August-13-2006 Location: United States Status: Offline Points: 13413 |
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Posted: April-01-2008 at 11:46pm |
this is an example of a cracked forward drum out of a PCM trans, this will be found both in the 1:1 and the 1.23:1, in the 1:1 it can crack from to harsh of a shift or mis-alignment, this is probably the most frequent problem these transmissions have, it can be avoided by making sure the boat is in align and shifting at idle allowing the prop to stop turning and then shifting it into the other range, of course if you hit an object with the prop this also likely will happen to the drum. it basically is the weak link in the transmission. |
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"the things you own will start to own you"
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eric lavine
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Posted: April-01-2008 at 11:47pm |
This is a Borg Warner planetary that was installed into a rebuilt transmission and the customer installed the trans into his boat completely overlooking alignment, i gather the boat would have been out .050 or so and he pulled the coupling halves together with the force of the bolts and never paid attention to the alignment. The transmission case was completely grooved at 12:00 o'clock position. all 6 of the planet gears were rounded as you see in the picture |
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"the things you own will start to own you"
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eric lavine
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Posted: April-01-2008 at 11:48pm |
this drum failed due to water contamination, as you can see the top ring area is broken from pressing the drum out of the case, the hook style ring expands into the groove that wears into the case and then is impossible to remove without breaking, if you notice the bottem ring has clearance on the sides due to the water destroying the lubricating qualities of the oils and causing the rings to sieze in the groove in turn rotating in the case |
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"the things you own will start to own you"
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boat dr
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Posted: April-02-2008 at 12:33am |
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This will possibly be deleted but will ask the question anyway.
Were the pics taken before or after a trip to YOUR rebuild bench............Boat dr |
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shawnmc
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Joined: March-17-2007 Location: United States Status: Offline Points: 282 |
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Posted: April-02-2008 at 1:18am |
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bad form boat dr.
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boat dr
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Posted: April-02-2008 at 1:22am |
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Thats Boat dr,I thought it was a legit question,mybad...........Boat dr
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kapla
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Joined: March-27-2008 Location: BA, Argentina Status: Offline Points: 6148 |
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Posted: April-11-2008 at 6:11pm |
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Eric I still didnŽt got the chance to check for cable adjustment but since i noticed the problem (5 months ago) it didnŽt got better nor worse. So iŽll wait untill the end of the season to adjust and check everything.
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<a href="">1992 ski nautique
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TRBenj
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Joined: June-29-2005 Location: NWCT Status: Offline Points: 21184 |
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Posted: April-12-2008 at 12:55am |
Why? All it takes is 2 minutes of your time with a 5/16" wrench to dial it in if all it needs is a cable adjustment. |
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eric lavine
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Joined: August-13-2006 Location: United States Status: Offline Points: 13413 |
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Posted: April-12-2008 at 11:34am |
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TR, theres always time to pull them when they burn up
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"the things you own will start to own you"
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kapla
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Joined: March-27-2008 Location: BA, Argentina Status: Offline Points: 6148 |
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Posted: April-16-2008 at 8:41pm |
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This weekend IŽll check adjustment with a friend, IŽll will also check the alligment as well. Regarding this last issue you think is a hard task for a regular person with some mechanic skills, or it have to be done by a pro? what tools should i consider to use undergoing this job?
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<a href="">1992 ski nautique
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kapla wrote: