Question on changing motor location
+ Reply to Thread
Results 1 to 12 of 12

Thread:
Question on changing motor location

  1. #1
    Urban Cougar Trapper Gopher711's Avatar
    Join Date
    Oct 2011
    Location
    Sandia,Tx. 78383
    Posts
    976

    Default Question on changing motor location

    Motor is currently 18" from back of block to inside transom . Moving it forward to get 28-30" per Gregs advice. ( approx 1 foot ), Installing longer Stringer motor Rails ( I'd like to be able to just line up new rails where old ones were and re drill new holes in the angle , using existing holes already drilled thru the stringers ) and using same motor plates and brackets . Would engine angle be ok ? Or is there a preferred driveline angle limit ? Most around these parts just say move it , get a new driveline , it's done ?
    PS : 18" measurement is without jetaway . I will be installing one now so new driveline will only need to be about 8" or less
    Last edited by Gopher711; 12-21-2014 at 09:05 AM.
    http://oathkeepers.org
    Due to the fact that GOD limited mans intelligence , it's unfortunate he did not also limit his Stupidity !!!

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    tintingsandiego krusn56's Avatar
    Join Date
    Oct 2008
    Location
    San Diego
    Posts
    1,063

    Default

    Crankshaft an pump shaft to be in parallel (=) with the driveline angle around 1-3* basically motor up or down with angle in drive
    Made In The Shade

    Custom Window Tinting

  4. #3
    Senior Member TNYoungblood's Avatar
    Join Date
    Mar 2010
    Location
    Clarksville, TN
    Posts
    5,104

    Default

    If your running a Lenco shaft then it will have to be damn near perfect .. A drive shaft with U joints will be alittle me forgiving
    WFLC The REAL #321 Kentucky Drag Boat Association 2016 NJBA 10.0 High Points Champ

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    Senior Member Boat 405's Avatar
    Join Date
    Dec 2007
    Location
    San Diego, CA
    Posts
    3,732

    Default

    Click image for larger version. 

Name:	joint life vs angle.jpg 
Views:	90 
Size:	14.9 KB 
ID:	661674
    Boat 405.

  7. #5
    Ralls Precision Machine Ballztech's Avatar
    Join Date
    Mar 2010
    Posts
    435

    Default

    No more than 2* per u-joint, that's what I have been told.

  8. #6
    Urban Cougar Trapper Gopher711's Avatar
    Join Date
    Oct 2011
    Location
    Sandia,Tx. 78383
    Posts
    976

    Default

    Thanks , Nate who's gonna help me do the Jetaway install is a Machinist ...may have to buy lots of "NattyLight" and twist his arm to help with motor rails and placement while we are at it
    http://oathkeepers.org
    Due to the fact that GOD limited mans intelligence , it's unfortunate he did not also limit his Stupidity !!!

  9. #7
    Senior Member
    Join Date
    Jun 2014
    Posts
    497

    Default

    I would clamp the rails to stringers, ensure they are level side to side and the an
    gle and height you want them on the stringer. Transfer punch the holes with a good tight transfer punch. remove rails and drill tight holes. Reinstall in boat and proceed to mockup engine and placement. Transfer punch the holes for pilliow blocks, mark out lighting holes in rails keeping in ming any acc you plan to mount to rails. Remove drill, slot, polish,anaodize and reinstall. Call friends and pop open beers and enjoy your sucess

  10. #8
    Urban Cougar Trapper Gopher711's Avatar
    Join Date
    Oct 2011
    Location
    Sandia,Tx. 78383
    Posts
    976

    Default

    PS : if anyone is looking for a great place to get motor rail materials ? call these guys !


    https://www.onlinemetals.com/merchan...p=2&top_cat=60
    Last edited by Gopher711; 12-23-2014 at 03:09 AM.
    http://oathkeepers.org
    Due to the fact that GOD limited mans intelligence , it's unfortunate he did not also limit his Stupidity !!!

  11. #9
    Senior Member cyclone's Avatar
    Join Date
    Dec 2007
    Posts
    3,620

    Default

    Quote Originally Posted by Gopher711 View Post
    PS : if anyone is looking for a great place to get motor rail materials ? call these guys !


    https://www.onlinemetals.com/merchan...p=2&top_cat=60
    fyi your link goes to a picture of aluminum angle that is prone to cracking. you want the angle with the rounded inside corner.

  12. #10
    Senior Member Oldsquirt's Avatar
    Join Date
    Dec 2007
    Location
    NorCal
    Posts
    979

    Default

    Quote Originally Posted by cyclone View Post
    fyi your link goes to a picture of aluminum angle that is prone to cracking. you want the angle with the rounded inside corner.
    Although the illustration shows a non- radiused inside corner, 6061 is the structural grade with a raduised inside corner. What you want to stay away from is the 6063 angle.
    Online Metals used to have the correct illustration for the 6061.
    Last edited by Oldsquirt; 12-23-2014 at 12:32 PM.

  13. #11
    Urban Cougar Trapper Gopher711's Avatar
    Join Date
    Oct 2011
    Location
    Sandia,Tx. 78383
    Posts
    976

    Default

    Quote Originally Posted by Oldsquirt View Post
    Although the illustration shows a non- radiused inside corner, 6061 is the structural grade with a raduised inside corner. What you want to stay away from is the 6063 angle.
    Online Metals used to have the correct illustration for the 6061.

    angle is heat-treatable, resistant to stress cracking and non-magnetic.

    6061-T6 Angle features rounded corners and approximately twice the strength of 6063-T52 Angle.
    http://oathkeepers.org
    Due to the fact that GOD limited mans intelligence , it's unfortunate he did not also limit his Stupidity !!!

  14. #12
    Senior Member
    Join Date
    Feb 2008
    Posts
    5,829

    Default

    For what it's worth - (Inside radius angle is often called construction angle, while angle that is basically a right angle on the inside is called architectural angle.)

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Please select your insurance company (Optional)

Log-in


Tags for this Thread

Digg This Thread

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •  
 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95