Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-12-2014, 09:20 PM   #1
Ensign
 
Join Date: Jul 2014
Posts: 4
Default Slow RPM at flank speed???

Thanks to all that helped with my last issue. I replaced the impeller which was not broken but I thought I would 'cause it came in the kit. The real problem was the upper water pump seal. It was worn and allowing water to escape rather than sending up the water intake. It runs now at a stable 175 degrees F, less if I go fast.

One other question... It's been a cool and wet season so I've only had the boat out a couple of times. I did have an opportunity to do a speed run after the pump rebuild and the engine would only spin up to 4K RPM. Is this normal? I thought I remembered it running faster at flank speed. Again, it is a 2006, 2000 SR3, with a 5.0L normally aspirated stern drive Alpha. Any thoughts?

Thanks,
Bill
__________________

fixh2o is offline   Reply With Quote
Old 09-14-2014, 05:46 PM   #2
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Perry Hall, Maryland
Posts: 5,392
Default

Bill if over proped the engine will not hit the proper WOT, are you sure it did? Also how was the seas? If fighting strong currents and heavy load in the boat the performance will be impacted.
__________________

__________________
Mike
mmwjr is offline   Reply With Quote
Old 09-15-2014, 01:39 PM   #3
Moderator

 
Join Date: Apr 2008
Posts: 3,551
Default

I also assume the drive was trimmed out? You'll gain a few hundred rpm with a proper drive trim angle. You'll also loose a little with trim tabs in as well.
__________________
Leave me alone, it's Boating Season!!!
shrew is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 11:41 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.