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Old 08-19-2016, 07:47 PM
jeff jolin jeff jolin is offline
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Angry 1980 Velvet slips AFTER a re-build! Have to take it to mechanic AGAIN! Now what!??

1980 Velvet Drive transmission Model 10-17-005 ratio 1.521 Ser. Num. 2627 and a gear reduction with only 480 hours.

A “bed-wetting” plastic/cotton pad in my bilge wrapped around the rear seal and dumped the oil. I was towed back after slippage discovering tranny oil in the bilge. I removed the plastic from the seal and refilled with no leaks. It soon began to slip with Dextron III SYNTHETIC oil.

Arduously removed and took to a reputable mechanic He said there was contamination inside of “Teflon-appearing” fibers during the rebuild (possibly plastic or cotton fibers? He said a prev. owner added seal softener/conditioner at some point. He said he could tell it had low hours.

I re-filled with NON-syn Dex III oil.

On the re-build/sea trial, it began to slip again! It took 3 seconds to engage in drive and immediate response for reverse then it slip and grab consistently while returning to the dock in both gears in low and moderate RPM’s…

The mechanic is at a loss and I really don’t wish to R&R this tranny again but have no choice and fearful it will do it again! Could it not be a tranny issue??? I believed that Velvets were more reliable than this!?
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Old 08-19-2016, 09:08 PM
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d2jp d2jp is offline
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I would try another pump out/refill with non-synth Dextron III. And another after that one. I don't have 1st hand experience but it seems a few drain/refills are standard procedure.


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Old 08-19-2016, 09:31 PM
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mikeg205 mikeg205 is offline
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No full synthetic ever ..
Sounds like pump not generating pressure
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Old 08-19-2016, 09:45 PM
jeff jolin jeff jolin is offline
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Thank you for your suggestion of changing DEX III a 2nd and 3rd time.

SO... run it forward/reverse in the water to circulate it then drain it in the garage, refill and sea trial again right?
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Old 08-19-2016, 10:08 PM
waterlogged882 waterlogged882 is offline
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They never come back.... the quick fix and hope for cheap fix
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Last edited by waterlogged882; 12-31-2016 at 10:13 PM.
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Old 08-20-2016, 01:50 AM
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d2jp d2jp is offline
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Quote:
Originally Posted by jeff jolin View Post
Thank you for your suggestion of changing DEX III a 2nd and 3rd time.

SO... run it forward/reverse in the water to circulate it then drain it in the garage, refill and sea trial again right?
Assuming you mean that you are pumping it out in the garage. There isn't a drain plug on the transmission, you have to pump the fluid out, and replace with the same amount of new fluid. I had the same transmission and going from memory I usually got just around 2 quarts out (I think it holds 3 total, but never get all of it out, hence the need for multiple drains/refills). AutoZone/Advance sell basic hand pumps designed for automotive fluids that do the job for $15~$20. Or you can buy a nicer vacuum extractor for about $50. Google or search Teamtalk for more info on fluid change in velvet drive.

And yes there are lots of instances here on TT where either water has entered the transmission, or the fluid was contaminated in some way and several drains and refills later....all was good. I hope that is the case for you. The Velvet drive is a very durable transmission.



Good luck
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Old 08-20-2016, 08:18 AM
waterlogged882 waterlogged882 is offline
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Last edited by waterlogged882; 12-31-2016 at 10:13 PM.
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Old 08-20-2016, 09:41 AM
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d2jp d2jp is offline
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Quote:
Originally Posted by mikeg205 View Post
No full synthetic ever ..
Sounds like pump not generating pressure
Also possibe the transmission was rebuilt, but the pump wasn't replaced at the time.
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