Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-22-2022, 01:36 PM   #21
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 9,512
Default

Duh now I see, Iím seeing the asphalt looking straight through the port on the other side.
__________________

__________________
1997 2400 SCR
5.7 Vortec / Bravo 2

Mike
mmwjr is offline   Reply With Quote
Old 05-22-2022, 02:58 PM   #22
Lt. JG
 
Join Date: Apr 2022
Location: SW WY
Posts: 49
Default

Nice insulated screwdrivers! You in electrical?
__________________

wiigelec is offline   Reply With Quote
Old 05-22-2022, 06:36 PM   #23
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 9,512
Default

Quote:
Originally Posted by wiigelec View Post
Nice insulated screwdrivers! You in electrical?
Yes Iím a EE.
__________________
1997 2400 SCR
5.7 Vortec / Bravo 2

Mike
mmwjr is offline   Reply With Quote
Old 07-21-2022, 02:41 PM   #24
Lieutenant
 
Join Date: Apr 2019
Posts: 90
Default

Huge thanks to Mike for pointers in fixing this. I always like to finish out threads and help the next poor soul that might encounters this.

So its fixed and it could be 1 of two things. The flame arrestor was FILTHY. So much so I could wipe the carbon off with my fingers at the side. Second, it could have been engine alignment. I could hear the starter motor struggling to move it by itself on first start.

First thing I did was service the outdrive. Impeller looked ok and changed it anyway with a new kit. New gear lube etc. Next up, did an engine tune up as it needed a service anyway.
  • Spent about 6-7 hours aligning the engine using the precision alignment tool... as best I could - this would be done in a fraction of the time if I had a second person!!!
  • Spark plugs - changed gap to spec
  • Spark plug cables
  • Distributor cap
  • Rotor
  • Oil
  • Oil filter
  • Fuel filter
  • Thermostat - old one was slightly rusted and corroded
  • Full can of Power tune - the amount of carbon that fired out the back after the 15 minute wait was UNREAL!

Pleased to report its now like a rocket and my engine has been under performing this whole time.. I now get below the 4800 MAX WOT limit on the engine with the same prop. I was previously getting 4300 or 4400.

I hope this helps other people. Learned alot and thanks again to Mike (mmwjr)/this forum for all your help and support as always!
__________________
Proud owner of a Maxum 1800SR year 2001.
Engine: Mercruiser 4.3 LH 1996 carb V6 engine.
Outdrive: Alpha1 Gen2 with 1.8gear
Keen interest in anything electronic or gadget related!
fester is offline   Reply With Quote
Old 07-21-2022, 05:52 PM   #25
Admiral
 
Phillbo's Avatar
 
Join Date: Mar 2012
Location: Lake Powell
Posts: 1,580
Default

Thanks for the follow up... Most people don't do that !!
Phillbo is offline   Reply With Quote
Old 07-22-2022, 02:31 AM   #26
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 9,512
Default

We’re all here to contribute as much as we can and glad to hear when folks resolve their issues. Payback is knowing you’ll be able to enjoy the rest of the season. Lots of valuable information from all members.
__________________

__________________
1997 2400 SCR
5.7 Vortec / Bravo 2

Mike
mmwjr is offline   Reply With Quote
Reply

Tags
engine underpower, hesitation, wont plane

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 11:47 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2022, vBulletin Solutions, Inc.