alu sailboat buliding - Page 78
RSS | Subscribe | Contact Us | Advertise | About Us
Page 78 of 78 FirstFirst ... 2868767778
Results 1,926 to 1,949 of 1949
  1. #1926
    Join Date
    Mar 2009
    Location
    Oslo,
    Posts
    1,116

    Re: alu sailboat buliding

    Quote Originally Posted by farmersamm View Post
    http://www.yachtsurvey.com/Alignment2.htm

    This info was in one of the links I posted earlier. Read them, or ignore them I guess. At least I'm learning a bit on how to build my next boat
    tnx. will read

    Sent from my S40 using Tapatalk
    Sailing the Farm - A seagypsy group of tomorrow
    Lincoln Squarwave 200 TIG
    Lincoln Powerwave S350 with Powerfeed 25 aluminium.

  2. #1927
    Join Date
    Apr 2013
    Posts
    492

    Re: alu sailboat buliding

    Quote Originally Posted by zeyang View Post
    what is acceptable prop shaft allignement ?
    A few thousandths of an inch on the outside of the flange, no need to displace shaft to mate with coupling (only lift it a bit to account for weight-sag), no rubbing between shaft and shaft alley, no pressure on the side of the shaft log, shaft log hose straight, no noticeable misalignment-induced vibration.

  3. #1928
    Join Date
    Mar 2009
    Location
    Oslo,
    Posts
    1,116

    Re: alu sailboat buliding

    15 mm now. plus reinforce sides. then steel plate underneath welded to a 16 mm bolt fastening to the engine

    Sent from my S40 using Tapatalk
    Sailing the Farm - A seagypsy group of tomorrow
    Lincoln Squarwave 200 TIG
    Lincoln Powerwave S350 with Powerfeed 25 aluminium.

  4. #1929
    Join Date
    Jun 2017
    Posts
    16

    Re: alu sailboat buliding

    Quote Originally Posted by zeyang View Post
    15 mm now. plus reinforce sides. then steel plate underneath welded to a 16 mm bolt fastening to the engine

    Sent from my S40 using Tapatalk
    Looking a lot better than before. What are you using for engine vibration isolation?

  5. #1930
    Join Date
    Mar 2009
    Location
    Oslo,
    Posts
    1,116

    Re: alu sailboat buliding

    Quote Originally Posted by zipfactor View Post
    Looking a lot better than before. What are you using for engine vibration isolation?
    nothing. we skip rubber and tighten hard. will be noisy. as long as we manage to go up to a civilized country to change engine its ok.

    Sent from my S40 using Tapatalk
    Sailing the Farm - A seagypsy group of tomorrow
    Lincoln Squarwave 200 TIG
    Lincoln Powerwave S350 with Powerfeed 25 aluminium.

  6. #1931
    Join Date
    Apr 2013
    Posts
    492

    Re: alu sailboat buliding

    No wonder it came apart! You must use vibration isolators.

  7. #1932
    Join Date
    May 2008
    Location
    Orange, TX
    Posts
    16,486

    Re: alu sailboat buliding

    How did we all miss that on the original build?
    MM200 w/Spoolmatic 1
    Syncrowave 180SD
    Bobcat 225G Plus - LP/NG
    MUTT Suitcase Wirefeeder
    WC-1S/Spoolmatic 1
    HF-251D-1
    PakMaster 100XL
    '68 Red Face Code #6633 project
    Star Jet 21-110

    4 out of the 5 voices in my head say "Go for it".

  8. #1933
    Join Date
    Jun 2017
    Posts
    16

    Re: alu sailboat buliding

    Quote Originally Posted by zeyang View Post
    nothing. we skip rubber and tighten hard. will be noisy. as long as we manage to go up to a civilized country to change engine its ok.

    Sent from my S40 using Tapatalk
    Not the end of the world. I've seen quite a few people that race cars use hard engine mounts and they worked fine for the application. It looks like you have quite a bit of mass with the aluminum and steel. Assuming decent welds, which I'm sure you're at a pro level now considering all the welding on the boat, I'd say you'll be fine until engine changeover in the U.S.

    Good luck and let us know when you set sail!

  9. #1934
    Join Date
    Apr 2013
    Posts
    492

    Re: alu sailboat buliding

    Quote Originally Posted by zipfactor View Post
    ...I've seen quite a few people that race cars use hard engine mounts and they worked fine...
    A diesel sailboat auxiliary is quite a different kettle of fish.

  10. #1935
    Join Date
    Jun 2017
    Posts
    16

    Re: alu sailboat buliding

    Quote Originally Posted by ezduzit View Post
    A diesel sailboat auxiliary is quite a different kettle of fish.
    The problem with putting flex mounts on the engine is that the rest of the system, such as the the exhaust system and drive shaft, may not be able to accommodate the added movement. I'd say his odds are better to mount as was done originally (hard mounted?) to avoid causing failure of other systems connecting to the engine. He can deal with a re-engineering when switching over engines, which would be a much more convenient time.

    Solid / hard mounts on diesel sailboats isn't that uncommon, anyhow.
    Last edited by zipfactor; 06-28-2017 at 10:19 PM.

  11. #1936
    Join Date
    Apr 2013
    Posts
    492

    Re: alu sailboat buliding

    Quote Originally Posted by zipfactor View Post
    The problem with putting flex mounts on the engine is that the rest of the system, such as the the exhaust system and drive shaft, may not be able to accommodate the added movement. I'd say his odds are better to mount as was done originally (hard mounted?) to avoid causing failure of other systems connecting to the engine. He can deal with a re-engineering when switching over engines, which would be a much more convenient time.

    Solid / hard mounts on diesel sailboats isn't that uncommon, anyhow.
    I have been a boat builder for more than half my 73 years, and have never seen an engine hard mounted as you describe. All are mounted using shock mounts.

  12. #1937
    Join Date
    May 2008
    Location
    Orange, TX
    Posts
    16,486

    Re: alu sailboat buliding

    An example of a properly isolated diesel engine in a boat. From q240z's refit thread. http://weldingweb.com/showthread.php...ighlight=refit




    I'd tend to agree with you zip on just getting the thing nailed down to get the vessel north where a re-power can be accomplished and proper isolation and all that goes with it.
    MM200 w/Spoolmatic 1
    Syncrowave 180SD
    Bobcat 225G Plus - LP/NG
    MUTT Suitcase Wirefeeder
    WC-1S/Spoolmatic 1
    HF-251D-1
    PakMaster 100XL
    '68 Red Face Code #6633 project
    Star Jet 21-110

    4 out of the 5 voices in my head say "Go for it".

  13. #1938
    Join Date
    Mar 2009
    Location
    Oslo,
    Posts
    1,116

    Re: alu sailboat buliding

    Quote Originally Posted by ezduzit View Post
    No wonder it came apart! You must use vibration isolators.
    we used rubber before. it did disintegrate. in manual it says: if you want to stop noise you can if you wish use 10-15 mm oak or 3mm rubber. other option is nothing. i think bolt hard down.

    Sent from my S40 using Tapatalk
    Sailing the Farm - A seagypsy group of tomorrow
    Lincoln Squarwave 200 TIG
    Lincoln Powerwave S350 with Powerfeed 25 aluminium.

  14. #1939
    Join Date
    Mar 2009
    Location
    Oslo,
    Posts
    1,116

    Re: alu sailboat buliding

    it seems perkins 4.236 need to be moved up. does it exist a gearbox who manage to move the shaft point down 20cm or more?

    Sent from my S40 using Tapatalk
    Sailing the Farm - A seagypsy group of tomorrow
    Lincoln Squarwave 200 TIG
    Lincoln Powerwave S350 with Powerfeed 25 aluminium.

  15. #1940
    Join Date
    Jun 2017
    Posts
    16

    Re: alu sailboat buliding

    Quote Originally Posted by zeyang View Post
    it seems perkins 4.236 need to be moved up. does it exist a gearbox who manage to move the shaft point down 20cm or more?

    Sent from my S40 using Tapatalk
    Here's a link to a vertical offset gearbox. The spec sheet doesnt give exact input to output shaft height, but it looks to be pretty close to your 20cm requirement.

    https://www.performancediesel.com/wp.../DS-ZF_500.pdf

    No idea on what gear ratio tou need, but I'm sure they make it in the vertical offset configuration.

  16. #1941
    Join Date
    Mar 2009
    Location
    Oslo,
    Posts
    1,116

    Re: alu sailboat buliding

    making engine bolts with steelplate underneath

    Sent from my S40 using Tapatalk
    Sailing the Farm - A seagypsy group of tomorrow
    Lincoln Squarwave 200 TIG
    Lincoln Powerwave S350 with Powerfeed 25 aluminium.

  17. #1942
    Join Date
    Mar 2009
    Location
    Oslo,
    Posts
    1,116

    Re: alu sailboat buliding

    Quote Originally Posted by zipfactor View Post
    Here's a link to a vertical offset gearbox. The spec sheet doesnt give exact input to output shaft height, but it looks to be pretty close to your 20cm requirement.

    https://www.performancediesel.com/wp.../DS-ZF_500.pdf

    No idea on what gear ratio tou need, but I'm sure they make it in the vertical offset configuration.
    tnx. will check.

    Sent from my S40 using Tapatalk
    Sailing the Farm - A seagypsy group of tomorrow
    Lincoln Squarwave 200 TIG
    Lincoln Powerwave S350 with Powerfeed 25 aluminium.

  18. #1943
    Join Date
    May 2008
    Location
    Orange, TX
    Posts
    16,486

    Re: alu sailboat buliding

    Quote Originally Posted by zipfactor View Post
    Here's a link to a vertical offset gearbox. The spec sheet doesnt give exact input to output shaft height, but it looks to be pretty close to your 20cm requirement.

    https://www.performancediesel.com/wp.../DS-ZF_500.pdf
    With an SAE #0 or #1 bell housing, that ZF 500 marine gear is as large as the Perkins 4.236 itself.
    MM200 w/Spoolmatic 1
    Syncrowave 180SD
    Bobcat 225G Plus - LP/NG
    MUTT Suitcase Wirefeeder
    WC-1S/Spoolmatic 1
    HF-251D-1
    PakMaster 100XL
    '68 Red Face Code #6633 project
    Star Jet 21-110

    4 out of the 5 voices in my head say "Go for it".

  19. #1944
    Join Date
    Mar 2009
    Location
    Oslo,
    Posts
    1,116

    Re: alu sailboat buliding

    engine is back in with new and much stronger engine beds. will keep us moving for awhile

    Sent from my S40 using Tapatalk
    Sailing the Farm - A seagypsy group of tomorrow
    Lincoln Squarwave 200 TIG
    Lincoln Powerwave S350 with Powerfeed 25 aluminium.

  20. #1945
    Join Date
    Nov 2014
    Posts
    5,712

    Re: alu sailboat buliding

    Glad to hear ur back going again.

  21. #1946
    Join Date
    Mar 2009
    Location
    Oslo,
    Posts
    1,116

    Re: alu sailboat buliding

    all good to go. just need diesel and food then ready to head out to sea again. next leg is some 2000 nautical miles.

    Sent from my S40 using Tapatalk
    Sailing the Farm - A seagypsy group of tomorrow
    Lincoln Squarwave 200 TIG
    Lincoln Powerwave S350 with Powerfeed 25 aluminium.

  22. #1947
    Join Date
    Mar 2009
    Location
    Oslo,
    Posts
    1,116

    Re: alu sailboat buliding

    Arrived Azores. Pretty filled up even so late in seaon

    Sent from my S40 using Tapatalk
    Sailing the Farm - A seagypsy group of tomorrow
    Lincoln Squarwave 200 TIG
    Lincoln Powerwave S350 with Powerfeed 25 aluminium.

  23. #1948
    Join Date
    Mar 2009
    Location
    Oslo,
    Posts
    1,116

    Re: alu sailboat buliding

    leaving Horta for Scotland. another 2 weeks sailing.obligatory painting on the wall.

    Sent from my S40 using Tapatalk
    Sailing the Farm - A seagypsy group of tomorrow
    Lincoln Squarwave 200 TIG
    Lincoln Powerwave S350 with Powerfeed 25 aluminium.

  24. #1949
    Join Date
    Mar 2009
    Location
    Oslo,
    Posts
    1,116

    Re: alu sailboat buliding

    painting ladies

    Sent from my S40 using Tapatalk
    Sailing the Farm - A seagypsy group of tomorrow
    Lincoln Squarwave 200 TIG
    Lincoln Powerwave S350 with Powerfeed 25 aluminium.

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
RSS | Home | Penton Media | Contact Us | Subscribe | For Advertisers | Terms of Use | Privacy Statement