Jump to content

 

Welcome to TheMalibuCrew!

As a guest, you are welcome to poke around and view the majority of the content that we have to offer, but in order to post, search, contact members, and get full use out of the website you will need to Register for an Account. It's free and it's easy, so don't hesitate to join the TheMalibuCrew Family today!

Sign in to follow this  
mrothwell

Min clearance between prop and hull

Recommended Posts

mrothwell

I just put an OJ 945 ( 15" x 13" ) on my 07 VTX.  I had read that any of the Malibu V-drives were fine with a 15" prop.  But the clearance between the prop and the hull is only a half inch.  Is that enough?  I took the boat out on Saturday, and I love the props performance, great pull when fully weighted, my skiing RPMs were only up by 200 over my ACME 1235, surfing at 2800 RPM at 10.8 mph.  So, this prop will work great for me, I'm just concerned about that little clearance.

Share this post


Link to post
Share on other sites
shadetreefab

Mines 3/4” clearance with a 15”,this will be the 4th season with it an no gel burn yet.

Share this post


Link to post
Share on other sites
UWSkier
52 minutes ago, mrothwell said:

I just put an OJ 945 ( 15" x 13" ) on my 07 VTX.  I had read that any of the Malibu V-drives were fine with a 15" prop.  But the clearance between the prop and the hull is only a half inch.  Is that enough?  I took the boat out on Saturday, and I love the props performance, great pull when fully weighted, my skiing RPMs were only up by 200 over my ACME 1235, surfing at 2800 RPM at 10.8 mph.  So, this prop will work great for me, I'm just concerned about that little clearance.

15x13 with a 1.5:1 redux?  That thing should pull stumps!

Share this post


Link to post
Share on other sites
Nitrousbird

Are you certain it is truly a 15" prop and certain only 1/2"?  That seems close.  Though a 1/2" should still be okay.

Share this post


Link to post
Share on other sites
mrothwell
Posted (edited)

I didn't measure it, but that is the OJ specs.  Also, when looking at it right next to my 1235, it's not much of a size difference.

I love the pull of this prop.  I normally run at around 3500 ft, but I spend 10 days each summer above 6500 ft, so having the torque is really nice.

I'll run for a few days on the lake and watch for burn.  What should I be looking for as the first sign of gel burn?

 

Totally unrelated.... I may have an ACME 1235 or an OJ 475 for sale soon..

 

Edited by mrothwell

Share this post


Link to post
Share on other sites
The Hulk

I'd say 1/2" would be minimum, if the prop works for you I wouldn't be too concerned who really cares about some gel burn on the bottom of a boat by the prop? Worst case fix it every few years.. 

Share this post


Link to post
Share on other sites
Lptexastornado1

@Mrothwell sent you a PM about your 1235. 

Share this post


Link to post
Share on other sites
Ballay

I had the acme 1235 on my 15 LSV. I changed to the OJ 945 (15x13) last year. Loved it. Then I tried the OJ 948 (15x14) even better. I run about 800 feet  msl. With the higher elevation the 945 may work well for you. The diameter difference between the Acme 1235 and the OJ 945 is 1/2 inch. That means it’s only 1/4 inch closer to the hull. 

Share this post


Link to post
Share on other sites
95echelon
Posted (edited)
On 6/17/2019 at 3:15 PM, mrothwell said:

I just put an OJ 945 ( 15" x 13" ) on my 07 VTX.  I had read that any of the Malibu V-drives were fine with a 15" prop.  But the clearance between the prop and the hull is only a half inch.  Is that enough?  I took the boat out on Saturday, and I love the props performance, great pull when fully weighted, my skiing RPMs were only up by 200 over my ACME 1235, surfing at 2800 RPM at 10.8 mph.  So, this prop will work great for me, I'm just concerned about that little clearance.

You are 100000% fine. I have done almost 400 hours now on my 2419 (15x12) on my 05 VLX. Edit: with no burn or marking whatsoever.

Edited by 95echelon

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...