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03-20-2023, 10:19 AM
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#1
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Member
City: Cresent Beach, BC
Vessel Name: Endless Tymes
Vessel Model: 44' Marine Trader
Join Date: May 2012
Posts: 16
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Lehman 135 pink transmission oil
Went for 3 hr cruise and found transmission fluid pink and foamy. Looks like oil cooler failure.  Any advice on how to deal with this best, hopefully not pulling and rebuilding transmission.
Thanks
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03-20-2023, 11:00 AM
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#2
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Guru
City: Gibsons, B.C., Canada
Vessel Name: Island Pride
Vessel Model: Palmer 32'
Join Date: Oct 2007
Posts: 4,253
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Which gearbox and model do you have?
Some can be flushed with several new oil installs, some have to be removed to get the contaminated oil out.
I am not the expert on these things but have picked this up.
But need the mfgr. and model.
Without the mfgr and model we are blind.
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03-20-2023, 11:13 AM
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#3
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Member
City: Cresent Beach, BC
Vessel Name: Endless Tymes
Vessel Model: 44' Marine Trader
Join Date: May 2012
Posts: 16
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Thanks for the reply, what I know so far Borg Warner Velvet drive aprox 2:1 reduction For more info I will go later today to get numbers and detailed info.
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03-20-2023, 12:38 PM
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#4
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TF Site Team
City: Jacksonville
Join Date: Nov 2008
Posts: 11,151
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Our boat had the same issue. It looked like a strawberry milkshake and it was the cooler. Three fluid changes after replacing the cooler and no further issues. Maybe we got lucky but I was told the BW’s are pretty durable.
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03-20-2023, 01:33 PM
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#5
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Guru
City: Narragansett Bay
Vessel Model: Grand Banks 36
Join Date: Sep 2016
Posts: 1,742
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Following
__________________
Carl
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03-20-2023, 01:35 PM
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#6
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Guru
Join Date: Jun 2008
Posts: 4,884
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Quote:
Originally Posted by Larry M
Our boat had the same issue. It looked like a strawberry milkshake and it was the cooler. Three fluid changes after replacing the cooler and no further issues. Maybe we got lucky but I was told the BW’s are pretty durable.
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Yes, fluid changes but do it NOW, or ASAP.
__________________
Jay Leonard
Ex boats: 1983 40 Albin trunk cabin, 1978 Mainship 34 Model 1
New Port Richey, Fl
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03-20-2023, 01:41 PM
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#7
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Guru
City: Gibsons, B.C., Canada
Vessel Name: Island Pride
Vessel Model: Palmer 32'
Join Date: Oct 2007
Posts: 4,253
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Sorry, I should have mentioned to do a flush or three IMMEDIATELY regardless of the gearbox.
No matter the gearbox that needs to be started ASAP or rusting will occur ruining bearings and shaft surfaces, control valves.
Still post the model and mfgr though.
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03-20-2023, 01:57 PM
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#8
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Guru
City: Boston
Vessel Name: Adelante
Vessel Model: IG 30
Join Date: Nov 2016
Posts: 1,579
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Check anti-freeze level in tank. If very low then heat exchanger might be suspect. Then check oil coolers. A radiator shop would be best choice. Most likely it is transmission oil cooler but fix the problem before dumping a lot of ATF into transmission.
It is difficult to flush out reverse pump on Velvet Drives so suggest running transmission in reverse a lot during flushing procedure.
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03-20-2023, 05:59 PM
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#9
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Member
City: Cresent Beach, BC
Vessel Name: Endless Tymes
Vessel Model: 44' Marine Trader
Join Date: May 2012
Posts: 16
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got all the hoses and fittings off, drained pink stuff out of the transmission, but cannot read the spec plate the only thing readable is "Velvet Drive" the number and reduction is not readable. getting new fittings and hoses and a new oil cooler hopefully by tomorrow.
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03-20-2023, 10:52 PM
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#10
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Guru
City: Gulf Islands, BC Canada
Vessel Name: Sea Sanctuary
Vessel Model: Bayliner 4588
Join Date: Jul 2019
Posts: 3,937
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On a boat the coolers or heat exchangers flow raw water, not engine coolant.
Velvet drive is a Borg warner. Have a 2:1 in the GB, but I used the same oil as in the engine for trans. Red ATF, is that what you put in there
__________________
SteveK
You only need one working engine. That is why I have two.
Sea Sanctuary-new to me 1992 Bayliner 4588
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03-20-2023, 11:03 PM
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#11
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Member
City: Cresent Beach, BC
Vessel Name: Endless Tymes
Vessel Model: 44' Marine Trader
Join Date: May 2012
Posts: 16
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ATF in the transmission that pumps through the oil cooler that is cooled with raw water, so expect a leek in the oil cooler were I believe the water and oil mix and flow back into the transmission
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03-20-2023, 11:13 PM
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#12
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Guru
City: Gulf Islands, BC Canada
Vessel Name: Sea Sanctuary
Vessel Model: Bayliner 4588
Join Date: Jul 2019
Posts: 3,937
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Quote:
Originally Posted by Chris b
ATF in the transmission that pumps through the oil cooler that is cooled with raw water, so expect a leek in the oil cooler were I believe the water and oil mix and flow back into the transmission
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That has happened to me as well. Do a flush. BTW, you could have the cooler checked by a rad shop to know for sure. The small ones are not really worth fixing though, about $200 for new.
__________________
SteveK
You only need one working engine. That is why I have two.
Sea Sanctuary-new to me 1992 Bayliner 4588
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03-31-2023, 02:34 PM
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#13
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Senior Member
City: Naples Fl
Vessel Name: Phantom
Vessel Model: Cheer Men PT41
Join Date: Sep 2018
Posts: 127
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My velvet drives have no drain plugs, so had to pump out the salt water in one where the cooler failed. I flushed several times with hydraulic oil (cheap) but again without drain plugs, who knows how efficient this was.
Over a short period of time, the front transmission oil seal failed, sending oil into the bellhousing. Presumably from corrosion on the shaft.
A $7k transmission rebuild later, all was well.
The coolers on mine can be bought for $120 each. My maintenance regime now is to replace all my coolers - 2 trans, 2 x engine oil- every two years. Probably overkill, but better safe than sorry.
Get to the boat asap and start flushing!
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03-31-2023, 04:42 PM
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#14
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Member
City: Raleigh
Vessel Name: Escape
Vessel Model: 1986 Defever 49 RPH
Join Date: Dec 2012
Posts: 9
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BW CR 2 Transmission
Your transmission is most likely a series 71 or 72 CR2. The seawater is coming from the oil cooler. The advice to flush several times with ASAP fresh oil is spot on.
You can remove the oil cooler hoses from the transmission and plug the ports on the transmission so you can put in gear to circulate the fresh oil and not introduce additional seawater.
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04-01-2023, 10:13 PM
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#15
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Senior Member
City: Tasmania
Vessel Model: Sea Ranger 46
Join Date: Sep 2019
Posts: 294
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Good call, I was wondering how you would not re-contaminate the fresh flushing oil.
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04-01-2023, 10:17 PM
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#16
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Senior Member
City: Tasmania
Vessel Model: Sea Ranger 46
Join Date: Sep 2019
Posts: 294
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Quote:
Originally Posted by SteveK
On a boat the coolers or heat exchangers flow raw water, not engine coolant….
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I believe with the Cat 3208NA, the engine oil and gear coolers are both engine coolant cooled.
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04-02-2023, 11:46 AM
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#17
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Guru
City: Gulf Islands, BC Canada
Vessel Name: Sea Sanctuary
Vessel Model: Bayliner 4588
Join Date: Jul 2019
Posts: 3,937
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Quote:
Originally Posted by Southern Boater
I believe with the Cat 3208NA, the engine oil and gear coolers are both engine coolant cooled.
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Thanks, My reply was in the context of the OP with Lehman and Borg warner trans. While newer ones may have gone to coolant cooling most other discussions still confirm a small exchanger on the Lehman for engine and trans oil cooling with raw water.
__________________
SteveK
You only need one working engine. That is why I have two.
Sea Sanctuary-new to me 1992 Bayliner 4588
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