Go Back   TeamTalk > Maintenance Tips, How-tos and Refurbishing Topics > Engine / Drive Train

Reply
 
Thread Tools Display Modes
  #1  
Old 11-30-2017, 01:46 AM
CamaroMan77 CamaroMan77 is offline
TT Newbie
 
Join Date: May 2017
Boat: 1974 Searay 233hp 351W
Location: Socal
Posts: 28
68 betram velvet drive (71c?) stuck in neutral - wont shift

Hi there.. got a problem with a velvet drive - its in neutral and wont budge.. ideas? Fluid is pink (see pic) suggesting water contamination..
This is the port motor - standard rotation i believe


__________________
Saved from hell by Christ.
Reply With Quote
  #2  
Old 11-30-2017, 06:56 AM
CantRepeat's Avatar
CantRepeat CantRepeat is offline
 
Join Date: Jul 2008
Boat: 06 X30
Location: Roll Tide!!
Posts: 14,449
How long has the boat been sitting with the water in the trans?
__________________
Tim

"Heavy" beer is for wine drinkers that are too embarrassed to drink wine in front of their buddies. "Light" beer is a drinkin' man's beer!
Reply With Quote
  #3  
Old 11-30-2017, 02:39 PM
CamaroMan77 CamaroMan77 is offline
TT Newbie
 
Join Date: May 2017
Boat: 1974 Searay 233hp 351W
Location: Socal
Posts: 28
judging by the smell of the gas - over 5 years.. maybe 10- stbd runs fine and drives - small leak from the stuffing box which I will repack..

This is the port side - no drips but doesnt shift.. I can pump out the fluid and refill with atf 3 and see if it will free up..
__________________
Saved from hell by Christ.
Reply With Quote
  #4  
Old 11-30-2017, 03:21 PM
CantRepeat's Avatar
CantRepeat CantRepeat is offline
 
Join Date: Jul 2008
Boat: 06 X30
Location: Roll Tide!!
Posts: 14,449
Is there a data tag on it?

I see a gear reduction on so I believe that is a C72.

Here is the manual for it.

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

Here is wouter's rebuild thread of a C71. I believe the shift valve assembly on both are close to the same so you should be able to use that thread to get yours out and cleaned.

http://www.mastercraft.com/teamtalk/...ad.php?t=53874
Attached Images
  
__________________
Tim

"Heavy" beer is for wine drinkers that are too embarrassed to drink wine in front of their buddies. "Light" beer is a drinkin' man's beer!
Reply With Quote
  #5  
Old 11-30-2017, 08:42 PM
88 PS190 88 PS190 is offline
MC Maniac
 
Join Date: Aug 2005
Boat: 1988 MC Prostar 190, 351 Ford
Location: Midwest
Posts: 3,869
Send a message via AIM to 88 PS190
Does the shift arm not move?
Reply With Quote
  #6  
Old 11-30-2017, 11:19 PM
CamaroMan77 CamaroMan77 is offline
TT Newbie
 
Join Date: May 2017
Boat: 1974 Searay 233hp 351W
Location: Socal
Posts: 28
nope - shift arm totally stuck.. The detent bracket seems to have lost its grip - the bracket still looks real good.. I guess the lever sticking out of the unit has been worn down.

Managed to clean up the paint today and snapped a pic:



Seems this is a 72c as I suspected. What about alignment? The motor rests on the mounts on this - do I support the motor with something temporary like blocks of wood and a jack?

I did find wouters post last night and saved all the pages - there are some working units on ebay for around 450 incl shipping - so will see whether to roll the dice or pull this one out..
__________________
Saved from hell by Christ.
Reply With Quote
  #7  
Old 11-30-2017, 11:24 PM
CamaroMan77 CamaroMan77 is offline
TT Newbie
 
Join Date: May 2017
Boat: 1974 Searay 233hp 351W
Location: Socal
Posts: 28
to add, I did spray pb blaster inside and removed the shift solenoid on the other side (switch with wires) - and ran motor for a few seconds to see if fresh ATF might free it up but no luck - shift rod stiff as a rock..



After reading this thread here it seems the cooler is bad -

velvet-drive-transmission-problems

Ill have to remove that first and see what can be done -
__________________
Saved from hell by Christ.

Last edited by CamaroMan77; 11-30-2017 at 11:43 PM.
Reply With Quote
  #8  
Old Yesterday, 04:17 PM
88 PS190 88 PS190 is offline
MC Maniac
 
Join Date: Aug 2005
Boat: 1988 MC Prostar 190, 351 Ford
Location: Midwest
Posts: 3,869
Send a message via AIM to 88 PS190
I use a pair of hydraulic bottlejacks below the exhaust manifolds and just gradually lift with the front engine mounts loose.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -4. The time now is 08:43 AM.