Like Tree0Likes

575sci Rebuilds finally complete... Details inside

Reply
Old 11-14-2010, 09:49 PM
  #1
Registered
Thread Starter
 
Join Date: Aug 2005
Location: Elkhart, Indiana
My Boats: Hustler 40 Fiore
Posts: 966
Default 575sci Rebuilds finally complete... Details inside

Well, after my port motor wiped a cam lobe in august, we pulled both motors out and stripped them down to bare blocks. During the teardown process, I sent a oil sample out to see what my zinc numbers were for both motors. The numbers came back surprising low. 617 was the number for the port number and it was supposed to be just over twice that per Valvoline. I used to run the VR-1 20w50. Anyway, is it possible that the low zinc caused my failure, sure... but did it... I dunno. Anyway, with the rebuilds, I ended up doing the following:

New main bearings - Clevite 77 H series
New rod bearings - Clevite 77 H series
New cam bearings - Clevite 77
New Hyd. Roller Cam - Marine Kenetics (Bob Madara)
New GM Single Roller Timing Chain/Gear set
New Morell Roller Lifters
New Manton pushrods (New Lengths required)
Full head rebuilds by Jim Valako w/ porting
ECM Remapping by Precision Marine
Felpro Hi-Perf Gaskets
Breaking in with Joe Gibbs Racing Oil 20w50
No need to re-ring.. leak down was 8% on port, 10% on STBD so I left them

Still loading pics but here is a link from Fridays shake down run from my Go Pro HD... first time using it. Took the video in 1080p.

http://www.youtube.com/watch?v=wZFYTmX3UpM

I will follow up with an album location to show multiple pics of the rebuild process...

BTW, lake had large rollers on it Friday and we were taking ti easy... saw 4k rpm mostly but engines felt pretty strong. GREAT oil pressure... 60 psi across the board, temps were good, and no leaks. Motors have approx. 1 hour of run time on them since rebuild with ZERO problems. So far so good but we'll have to wait till spring to find out what she'll do on the high end mark. I think we'll be hitting the 100 mark but time will tell. May be looking for a set of great shape BRAVO34's and selling an extra set of my BRAVO 32's.... if anyone has any or is looking...

Well, thats it for now...
teamsynergy is offline  
Reply With Quote
Old 11-15-2010, 05:22 AM
  #2
Registered
 
Join Date: Sep 2002
Location: Manhasset, NY
My Boats: Sonic 358 Diablo
Posts: 1,942
Default

NICE!!!! Good job on the timely rebuild......nice to put her to rest knowing they are running well.........
Here's Johnny is offline  
Reply With Quote
Old 11-15-2010, 06:48 AM
  #3
Registered
 
Back4More's Avatar
 
Join Date: Feb 2002
Location: Lake Michigan
My Boats: 353 Fastech
Posts: 6,624
Default

They sound great...Keep them happy with Kendall 20w50.
Back4More is offline  
Reply With Quote
Old 11-15-2010, 06:51 AM
  #4
Registered
 
sommerfliesby's Avatar
 
Join Date: Sep 2002
Location: Frankfort, IL
My Boats: 2010 Active Thunder 37 Excess
Posts: 4,279
Default

Looking good Todd!
sommerfliesby is offline  
Reply With Quote
Old 11-15-2010, 07:23 AM
  #5
Registered
Thread Starter
 
Join Date: Aug 2005
Location: Elkhart, Indiana
My Boats: Hustler 40 Fiore
Posts: 966
Default

Thanks guys. I thought the anxiety would pass once I got it back on the water with no issues now its building again to see what she'll do.... oh the pressure....lol
teamsynergy is offline  
Reply With Quote
Old 11-15-2010, 08:05 AM
  #6
VIP Member
VIP Member
 
offshoredrillin's Avatar
 
Join Date: Feb 2004
Location: Maryland
My Boats: 00 Cig Tiger,74 Cig 20'
Posts: 10,942
Default

As for oil, i have been using mobil one v twin, but I just got an analysis form a local amsoil rep and their V twin Oil is higher, they did a test across the board and the only one to come in better than mobil one was the amsoil. oh and it is less expensive than the Mobil one.
offshoredrillin is offline  
Reply With Quote
Old 11-15-2010, 09:21 AM
  #7
Registered
 
Join Date: Feb 2009
Location: LaPorte, IN
My Boats: 2003 37 Active Thunder
Posts: 246
Default

Looking good.
SC288 is offline  
Reply With Quote
Old 11-15-2010, 10:07 AM
  #8
Registered
Platinum Member
 
THEJOKER's Avatar
 
Join Date: Nov 2000
Location: Lake Lanier - N. Georgia
My Boats: Being a great husband and dad , boats , golf
Posts: 6,307
Default

Gotta love those motors.
THEJOKER is offline  
Reply With Quote
Old 11-15-2010, 10:34 AM
  #9
PF Marine
Platinum Member
 
Coolerman's Avatar
 
Join Date: Mar 2003
Location: Dallas, TX
Posts: 1,767
Default

Motors look like they are running nice! Hope to see a vid in a the spring of the gps @ 100mph

Last edited by Coolerman; 11-15-2010 at 10:37 AM.
Coolerman is offline  
Reply With Quote
Old 11-15-2010, 10:53 AM
  #10
Banned
 
Join Date: Sep 2007
Location: Frankfort,ill
My Boats: 40 SKATER
Posts: 12,863
Default

Quote:
Originally Posted by Back4More View Post
They sound great...Keep them happy with BRAD PENN 20w50.
+1 and i fixxed her for ya
good luck & see ya on the Lake Todd
RunninHotRacing163.1 is offline  
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
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 05:27 AM.


Copyright 2011 OffShoreOnly. All rights reserved.