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AlumiJim
#1 Posted : Tuesday, May 05, 2009 12:46:59 AM(UTC)
AlumiJim

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We've gotten the oil and all filters for water, fuel and oil completed, maybe we're ready for the season, but:

We have Chrysler 318's with 1:1 Velvet Drives. The Port shaft rotates at a low, consistent speed when the transmission is in neutral. It's enough to put just a bit of stress on the dock lines, but a LOT of stress on me.

Any thoughts on what monster is lurking down there?

JIM


JIM
Alexandria, VA
1989 32' Sedan
'Gammelby'
Friendship, MD
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Barkleydave
#2 Posted : Tuesday, May 05, 2009 12:55:44 AM(UTC)
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Check your linkage sounds like it is not completely in Neutral. You can verify by disconnecting the cable and place manually in neutral.

It is hard on the planetary gears and reverse band if it does not go completely into neutral.. then every time you shift from neutral to reverse it like doing it from forward to reverse.. not a good thing will increase tranmission wear.

safe boating,
dave

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dependo
#3 Posted : Tuesday, May 05, 2009 1:26:48 AM(UTC)
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Jim & Dave , one of my trans does the same thing. The only way it will go into neutral is if I can get it in just the right spot. !/8 " one way or the other it goes forward or reverse. Does anyony know how to adjust for more neutral space? Thanks, Wayne
1973 express FB 32ft
twin 318
"Southern Lady"Chattanooga
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fastjeff
#4 Posted : Tuesday, May 05, 2009 6:06:56 AM(UTC)
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..."Does anyony know how to adjust for more neutral space? "

If you mean handle travel, you might create some looseness in hte connections. The position of neutral can be adjusted via the cable ends, and I suspect yours is off a titch.

Jeff
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bpboater
#5 Posted : Tuesday, May 05, 2009 1:37:41 PM(UTC)
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If the linkage is disconnected and the transmission is put in the neutral position, then the shaft should stay still with the engine idleing. If it turns, then the clutch plates are dragging on each other. In the late 80's, some Borg Warners had the friction material on the plates warp and cause the plates to drag on each other. The drag is more noticeable in a cold transmission because the fluid is more viscous.

The best test is to disconnect linkage and observe what happens.

Paul
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DiverDennis
#6 Posted : Wednesday, May 06, 2009 10:25:46 AM(UTC)
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SI's trans will rotate slowly when first started up but I can stop it with my foot and it stays stopped. It bugs me because the dry strut bearing makes a groaning noise while the shaft turns (on the hard).
Surface Interval
1975 28' Express, Single M360
Specs: http://www.boatm8.com/my...amp;page=boats&arr=0
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AlumiJim
#7 Posted : Sunday, May 17, 2009 1:26:37 AM(UTC)
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Well, I checked out the transmission yesterday. I removed the cable, checked the detents for forward, reverse and neutral. I also verified fluid level, it needed some AT fluid, but not much. Unfortunately, the spinning continues, so it looks like it must be the clutch issue described earlier.

My Velvet Drive book does not have this listed in the troubleshooting section and it also has no exploded views of the transmission. I went on line when I got home and wrote to the manufacturer's help line, marinesupport@velvetdrive.com and my mail was returned undeliverable.

Any suggestions on whether I should prioritize this repair or try to live with it? I certainly agree that it has to increase wear and tear when shifting to reverse, but it also smells like a very expensive fix, either way.

Thanks, JIM


JIM
Alexandria, VA
1989 32' Sedan
'Gammelby'
Friendship, MD
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Barkleydave
#8 Posted : Sunday, May 17, 2009 1:47:14 AM(UTC)
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When was the last time you changed your T fluid?
Since you cannot get all of it out it is important that it be changed every 50 hrs or at least once a year.

When it becomes contaminated it can also contribute to your condition.

Small clutch material paticles become suspended in the oil.

May not solve your condition,but sure the heck will not hurt to put some fresh juice in them.

? When you move from reverse back to neutral position does it stop the rotation and then slowly start turning forward again? If you can stop the motion with little pressure on the shaft it will not harm your transmission.

Tip. Avoid running any engine on the hard if your shafts are turning! If it is easy to stop the shaft then I would lock them in place while winterizing or whatever reason you are running engines on the hard. It takes only a few turns on a dry cutlass bearing to add years of wear to the bearing!

One other thought. Have you checked your packing gland? Is it leaking? When it is adjusted properly it does create some resistance/friction and that might be all that is required to stop your slow rotation. Is your boat on the hard?
safe boating,

dave
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AlumiJim
#10 Posted : Sunday, May 17, 2009 5:47:45 AM(UTC)
AlumiJim

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Thanks for the tips, Dave. We stay in the water all the time, this boat's been wet except for repairs and annual cleaning since it was launched.

I'll check to see if I can stop the rotation with my foot, meanwhile, no, the fluid change is way overdue, so I'll catch that next time over there.

For everyone, I found an original tech manual on line today, someone scanned it into a PDF. It's 88 pages and full of info, such as a breather that I didn't know about that can also create my problem. Here's the link:

http://www.marineryachts.com/borg_manual.pdf


JIM
Alexandria, VA
1989 32' Sedan
'Gammelby'
Friendship, MD
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DiverDennis
#9 Posted : Monday, May 18, 2009 9:46:58 AM(UTC)
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Barkleydave wrote:
Tip. Avoid running any engine on the hard if your shafts are turning! If it is easy to stop the shaft then I would lock them in place while winterizing or whatever reason you are running engines on the hard. It takes only a few turns on a dry cutlass bearing to add years of wear to the bearing!
I have begun the practice of spraying water on the strut bearing before starting. Perhaps I will bind the coupling to prevent turning in the future.
AlumiJim wrote:
For everyone, I found an original tech manual on line today, someone scanned it into a PDF. It's 88 pages and full of info, such as a breather that I didn't know about that can also create my problem. Here's the link: http://www.marineryachts.com/borg_manual.pdf
THANKS!
Surface Interval
1975 28' Express, Single M360
Specs: http://www.boatm8.com/my...amp;page=boats&arr=0
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