Classic SeaCraft Community  

Go Back   Classic SeaCraft Community > General Discussion > Performance
FAQ Community Calendar Today's Posts Search

Notices

Reply
 
Thread Tools Search this Thread Display Modes
  #11  
Old 04-17-2013, 07:35 AM
Highway12 Highway12 is offline
Member
 
Join Date: May 2011
Location: Annapolis
Posts: 44
Default

Yes, it's a velvet drive 5000 8 degree down angle 1 1/2 : 1 . I talked to Mack Boring in NJ and they sent me the torque converter and bell housing I needed. Watermen around here swear by them on their crab boats. My guess is it will need a 17 x 19 wheel.

It's taking forever to clean up the bilge. The glasswork in those old boats is a little rough to say the least, and I'm glad to get rid of all that waterlogged foam!

I'm cutting down the motor mount stringers and eliminating the boxed out section next to them, so I can add aluminum angle with backing plates bolted through the stringer for the motor mounts. The stringers were wet, but in good shape. No rotten wood.

Once I test fit the motor, I'll take it back apart and glass everything back up.
Reply With Quote
  #12  
Old 04-18-2013, 02:54 PM
ct9amr ct9amr is offline
Senior Member
 
Join Date: Mar 2010
Location: Riverview, FL
Posts: 186
Default

I have had both velvet drive and ZF trans.
Both great and hold up great.

If you are redoing the bilge try the bilge coat product. Worked great on my shamrock inboard.
__________________
Glen
1996 23ft Contender 08 Yamaha 250 HPDI
1965 13ft Cacci craft skiff with 20 Hp tohatsu 4 stroke
1992 20ft Shamrock Predator (Hard Top) 351 FWC PCM Repower SOLD
First boat: 1988 17Ft Shamrock Open 3.0 Mercruiser RWC 140hp Traded
Reply With Quote
  #13  
Old 05-30-2014, 06:13 AM
Highway12 Highway12 is offline
Member
 
Join Date: May 2011
Location: Annapolis
Posts: 44
Default

Mac Boring sells a 6' exhaust extension for the motor. The extension plus a rubber exhaust flap on the transom and you will be fine.

My boat has a 22 - 27 kt cruise and will plane out at 11 kts.

My only complaint is low speed vibration from the small diesel. I'm going to try different motor mounts to see if it helps.
Reply With Quote
  #14  
Old 05-30-2014, 09:08 AM
kmoose kmoose is offline
Senior Member
 
Join Date: Jul 2006
Location: Ocala, Florida
Posts: 1,817
Default

Sounds like a great swap but I bet you will miss the trimable drive.
__________________
[b]The Moose is Loose !
Reply With Quote
  #15  
Old 05-30-2014, 02:14 PM
Wags23 Wags23 is offline
Member
 
Join Date: Feb 2009
Location: boston ma
Posts: 85
Default

Mercury now has this engine and they changed the riser. I just installed it with a back pressure relief. I just ran it in my driveway..Going to drop it in Sunday.
Reply With Quote
  #16  
Old 05-31-2014, 10:38 AM
Wags23 Wags23 is offline
Member
 
Join Date: Feb 2009
Location: boston ma
Posts: 85
Default

Hey Harper how did you make out with the inboard purchase?
Reply With Quote
  #17  
Old 06-30-2014, 05:43 PM
Keezdisease Keezdisease is offline
Junior Member
 
Join Date: Jul 2013
Posts: 1
Default

just bought a 23 seacraft inboard with a 350 small block can you guys tell me the performance numbers for this rig
Reply With Quote
  #18  
Old 06-30-2014, 06:09 PM
heynow2203 heynow2203 is offline
Senior Member
 
Join Date: Dec 2010
Location: Dennis, MA
Posts: 394
Default

Quote:
Originally Posted by Keezdisease View Post
just bought a 23 seacraft inboard with a 350 small block can you guys tell me the performance numbers for this rig
What's the hp rating?
__________________
1976 Seacraft CC(Pilot House) Inboard Yanmar 315
1979 Septer I/O no power Sold
Reply With Quote
  #19  
Old 06-30-2014, 10:11 PM
deepsushi deepsushi is offline
Senior Member
 
Join Date: Mar 2002
Location: Massachusetts
Posts: 163
Default

as a general rule -- the gas inboards cruise 20 - 22 knots and diesel 27 -- 28 knots.
Reply With Quote
Reply


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

Forum Jump


All times are GMT -4. The time now is 02:33 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
All original content © 2003-2013 ClassicSeacraft