Carb Rebuild - 3L Hesitation from 1400 to 2000RPM

[kidafa]

Engine: 2005 Mercuiser Turn Key Start, Alpha One Gen 2 Drive Serial: 0W356097

Issue: When I accelerate gradually from idle up and onto the plane I hit a dead spot at about 1,400 to 2,000 rpm. The boat literally wants to stop and stall and some times does. If I throttle past this rpm point quickly I don't have this issue at all.

Idle is set at 700rpm and boat doesnt run on at all (used to prior to reducing idle and richening idle mixture).
Timing is fine.

I've got my hands on a carb rebuild kit including float and was wondering if someone could run me through the best way to go about putting the kit through the carb.

Cheers,

Chris

 

[ziggy]

Re: Carb Rebuild - 3L Hesitation from 1400 to 2000RPM

i've never worked on your rig. so. not knowing the facts, i'd start with the mercruiser service manual. choose yours here. find the section on carb rebuild and go from there following the instructions. assemble to specs for your carb.

i'd think a good soaking in carb cleaner would be a good idea. also used compressed air at the minimum to blow out all small passages in the carb while it's disassembled.....

 

[achris]

Re: Carb Rebuild - 3L Hesitation from 1400 to 2000RPM

Get a hold of manual #41. It has the full description of the rebuild procedures....

Try here... http://www.4shared.com/document/SNqPsoNI/Service_Manual_41.html

 

[cr2k]

Re: Carb Rebuild - 3L Hesitation from 1400 to 2000RPM

Most common cause is plugged or worn out accelerator pump.

 

[achris]

Re: Carb Rebuild - 3L Hesitation from 1400 to 2000RPM

Most common cause is plugged or worn out accelerator pump.

.... If I throttle past this rpm point quickly I don't have this issue at all. ...

Sounds like the accelerator pump's working fine to me....

 

[kidafa]

Re: Carb Rebuild - 3L Hesitation from 1400 to 2000RPM

Thanks for the response guys,

Well looks like If I pull the carb take my time and lay it all out on a tidy work area I should be ok....

 

[Fleefish]

Re: Carb Rebuild - 3L Hesitation from 1400 to 2000RPM

I am having the same problem. Did the carb rebuild fix the issue?

 

[Don S]

Re: Carb Rebuild - 3L Hesitation from 1400 to 2000RPM

You need to start a thread of your own Fleefish, even if it did fix his problem, it doesn't mean that's what is causing yor problem.

 

[Fleefish]

Re: Carb Rebuild - 3L Hesitation from 1400 to 2000RPM

You need to start a thread of your own Fleefish, even if it did fix his problem, it doesn't mean that's what is causing yor problem.

oh, sorry. I do have a thread started on my issue just figured I would save some time and space. Won't happen again, thanks!

 

[kidafa]

Re: Carb Rebuild - 3L Hesitation from 1400 to 2000RPM

Hi Champ,

I'm yet to rebuild the carb so not sure mate.... Busy with Uni exams and stuff prob will have a crack in 2 or 3 weeks and Ill let you know.

Cheers,

Chris