Go Back   Maxum Boat Owners Club - Forum > Maxum General > Engines
Click Here to Login

Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-25-2010, 07:41 AM   #21
Captain
 
Join Date: Sep 2009
Location: Almere, Netherlands
Posts: 710
Default

succes with your problem..

greatz, ed
__________________

ed & inge is offline   Reply With Quote
Old 08-25-2010, 12:21 PM   #22
Lieutenant
 
Join Date: Aug 2010
Location: Bear creek, NC
Posts: 54
Default

Carb was clean and the metering jets on the primary and secondary were fine no clogs accelerator jets were good too. no dirt or jelled gas in it. So the only 2 things left to do is check to see if the fuel tank has a clogged vent line and replace the distributer module (the chip inside the distributer that senses when to fire the coil) Ill start with the fuel tank first do you think disconnecting the vent line from the tank and blowing compressed air through it will tell me if it is cloged?
__________________

ussoldier_1984 is offline   Reply With Quote
Old 08-25-2010, 12:43 PM   #23
Captain
 
Join Date: Sep 2009
Location: Almere, Netherlands
Posts: 710
Default

sure....but clean the vent exit also.....check the line from the tank to the fuel pump also, and from the fuel pump to the carb........check your new fuel filter for water......if thats all oke its got to be a problem at the engine.........but what (i am going to read on the dutch boaters forum if there's said something about this)

greatz, ed
ed & inge is offline   Reply With Quote
Old 08-25-2010, 03:45 PM   #24
Lieutenant
 
Join Date: Aug 2010
Location: Bear creek, NC
Posts: 54
Default

Thankyou ohh I cant find gaskit kit for my carb mercruiser stop carying a rebuild kit for it according to my local marina does anyone know of a good website to find the gasket kit or rebuild kit for my carb?
And do you think it could be a problem with the hydrolic lifters? maybe not opening the valves fully after 30 mins? but then again the engine is at full temp within 10 mins and it still runs great up untill about 30 mins. IM thinking it has to be a vent issue on the boat or fuel delivery problem
ussoldier_1984 is offline   Reply With Quote
Old 08-26-2010, 07:39 AM   #25
Captain
 
Join Date: Sep 2009
Location: Almere, Netherlands
Posts: 710
Default

thats why we advise you to check the fuel line from the inlet all the way to your engine...........maybe a slowly growing vacume in the tank........tell us what you found......succes

ed
ed & inge is offline   Reply With Quote
Old 08-26-2010, 01:16 PM   #26
Lieutenant
 
Join Date: Aug 2010
Location: Bear creek, NC
Posts: 54
Default

well after alot of research on rebuild kits for the weber 9600s carb they do not make it anymore but edelbrock uses the design on their 1405 carb it is the same as the weber 9600s and thats where you can get the carb rebuild kit for it, (same carb just under new manufacturer) if anyone else needed to know
ussoldier_1984 is offline   Reply With Quote
Old 08-26-2010, 01:35 PM   #27
Admiral

 
ss3964spd's Avatar
 
Join Date: Jul 2009
Location: Fairfax Va
Posts: 1,512
Send a message via Yahoo to ss3964spd
Default

Definately not the engine's valve lifters.

I think you need to stick with the symptom; runs fine in the 1st 30 minutes, but won't run past part throttle after that. Carb's are not going to be fine for 30 minutes and then crap out.

I firmly believe you have either a fuel flow problem or an ignition problem related to heat.

Another on the water test - if you have the space to perform it. Take the boat and run it for 15 minutes to get it warmed up. Then, before the symptom shows up, run the boat at, say 3500-4000 RPM for 30 minutes without backing out of the throttle if possible. See what it does.
ss3964spd is offline   Reply With Quote
Old 08-26-2010, 08:44 PM   #28
Lieutenant
 
Join Date: Aug 2010
Location: Bear creek, NC
Posts: 54
Default

Ill have to try that when the carb is back on
ussoldier_1984 is offline   Reply With Quote
Old 08-26-2010, 09:27 PM   #29
Admiral

 
seapuppy's Avatar
 
Join Date: Nov 2005
Location: Everett Wa
Posts: 4,681
Default

that's easy to do...run it till it starts slowing down..then open the tank fill cap....if you hear a hiss...you know it's the vent...



SP
__________________
Don't compare your life to others. You have no idea what their journey is all about.
------------------------
SSN683 Association member
Par Excellence
------------------------------
2008 Bayliner 340 - "Wild Whim"
--------------------------------------
I live in my own little world....but it's okay-they know me here!!!

Avid practitioner of the martial art: KLIK-PAO.
Tap-Rack-Bang

Anyone that sez "Size doesn't matter" has never owned a boat!
seapuppy is offline   Reply With Quote
Old 08-27-2010, 07:50 AM   #30
Captain
 
Join Date: Sep 2009
Location: Almere, Netherlands
Posts: 710
Default

yeah SP we all think a little bit the same.....so it's got to be that......

greatz, ed
__________________

ed & inge 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 09:02 AM.


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