DPS-A props alignment

saaristo

Petty Officer 2nd Class
Joined
Sep 22, 2017
Messages
190
When installing back the props after maintenance I was wondering is there any difference how the props are put back in relation to each other. Neither the operator manual or workshop manual say anything about it. Then found from some forum that the prop blades should not meet at the same time under the cavitation plate. However when I browse different sales ads for example, many of them show prop blades meeting exactly under the cavitation plate. So which way is actually correct?
 

alldodge

Moderator
Staff member
Joined
Mar 8, 2009
Messages
42,537
Been several comments, but most lean (note lean) toward front be straight up with skeg, and rear to b 33* offset
 

saaristo

Petty Officer 2nd Class
Joined
Sep 22, 2017
Messages
190
Hmm, I set them so that forward straight up (blades at 12, 4 and 8 o'clock) and rear prop symmetrically in between, meaning at 2, 6 and 10, so not 33 degrees but 60 deg apart. Could that be the reson why I feel sort of vibration in the hull when driving?
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
50,230
you clock them 180 degrees apart. one prop with a blade up, one prop with a blade down
 
Top