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-   -   TRS transmission losing fluid (https://www.offshoreonly.com/forums/do-yourself-boating-budget/312707-trs-transmission-losing-fluid.html)

Playbuoy 05-22-2014 08:55 PM

TRS transmission losing fluid
 
1 have a 35' Cafe Racer w/ TRS drives and transmissions. My starboard transmission started making a friction type noise when I was idling in nuetral. When I shifted to forward or reverse it went away. Checked dipstick and the Type F fluid was low. Added 1/4 quart to bring on dipstick. Noise went away. Ran 80 miles and noise came back and fluid was low. Where is it going?
Thx

Rookie 05-22-2014 09:18 PM

Out the transmission oil cooler, or rear tail stock in the bellows.

Playbuoy 05-22-2014 09:44 PM

How do I check for signs of either? Thx

MILD THUNDER 05-22-2014 10:36 PM

Real good chance if it ran low on fluid the clutches are warped. Could be rear seal on tailstock leaking like rookie said or cooler . Pull drive look for fluid in bellow , take trans cooler and pressure test for leaks

Playbuoy 05-23-2014 05:44 AM

where is trans cooler located?

bcfountain 05-23-2014 08:36 AM

not to hijack the thread.but are you supposed to use type -f fluid?my trans is slipping and has made the same noise.

Rookie 05-23-2014 09:01 AM


Originally Posted by bcfountain (Post 4126857)
not to hijack the thread.but are you supposed to use type -f fluid?my trans is slipping and has made the same noise.

Yes, type F.
From the conversations I had with my transmission guys they say type F is designed better for constant load.

bcfountain 05-23-2014 10:55 AM


Originally Posted by Rookie (Post 4126880)
Yes, type F.
From the conversations I had with my transmission guys they say type F is designed better for constant load.

thax rookie.....I am a real rookie when it comes to trs/trans.first boat with them:lolhit:

Borgie 05-23-2014 12:36 PM

Not a TRS expert, but Type F fluid is known for lack of friction modifiers (ie DEXRON type fluids contain quite a bit vs F) faster shifts, better lockup etc at higher temps encountered in a racing application. Used quite a bit in drag racing transmissions.

Craney 05-23-2014 05:49 PM


Originally Posted by Playbuoy (Post 4126791)
where is trans cooler located?

Should be on your bell housing.

donzi matt 05-23-2014 06:27 PM

I thought that was the oil cooler? I think on my 420's they are on the starboard side of the block, but I could be wrong.

motor 05-23-2014 07:32 PM

I've got to say the obvious. The cooler is the one the cooler lines from transmission go to..................Probably tucked under one side of motor ,under the mounts

Craney 05-25-2014 12:40 AM


Originally Posted by Borgie (Post 4126978)
Not a TRS expert, but Type F fluid is known for lack of friction modifiers (ie DEXRON type fluids contain quite a bit vs F) faster shifts, better lockup etc at higher temps encountered in a racing application. Used quite a bit in drag racing transmissions.

Would a Dexron fluid work in a velvet drive trans??

tommymonza 05-25-2014 01:24 AM

Crazy if it is being blown out the cooler on the pressure side and being dumped out on the cooling water side being it is a fresh water boat. But killed a trans in saltwater having the same thing happen with the cooler going out in minutes. /

It was not a cast cooler that went out. What is your cooler?

MILD THUNDER 05-25-2014 09:34 AM


Originally Posted by Craney (Post 4127441)
Would a Dexron fluid work in a velvet drive trans??

yes it will work. A buddy of mine runs it in his. I've always used type F based on the merc manuals and Marc from Bam. I see no reason to steer away from what has worked for many years and many velvet drives behind some big power.

cigrocket 05-25-2014 08:46 PM

Huber and Speedmasters always said F only. Everything else increases your chance of slip and failure. It's cheap insurance


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