98 mercruiser 4.3 Webber 4 barrel dying

jackd1023

Petty Officer 1st Class
Joined
Aug 15, 2006
Messages
269
Like post says, motor will run hesitate, sputter , rev , then die.
Has electric fuel pump, put power to it it pumps every time, put a voltmeter on it and seems to have constant power while running.
Changed fuel water separator checked no water, checked check valve, pick up tube, clean no issues. A it honestly acts like float is stucking , but from what I heard is the webbers are floatless??
Carb or pump??
 

Rick Stephens

Admiral
Joined
Aug 13, 2013
Messages
6,118
Just like any other carburetor with float, jets, needles and ports. Easy to clean anyway. Get a kit and go to rebuilding it.
 

Toyelectroman

Petty Officer 2nd Class
Joined
Dec 20, 2016
Messages
197
Is rebuilding a weber carb something that i can do with very little knowledge on carbs in general?
 

Darrenmb

Petty Officer 3rd Class
Joined
Oct 19, 2016
Messages
76
Absolutely, thats the good thing about todays technology! Use your phone, take lots of pics of rods, linkages etc, really isn't much inside a carb, just pay attention, and follow the instructions in the kit!
 

Rick Stephens

Admiral
Joined
Aug 13, 2013
Messages
6,118
Even better is follow the directions in the Mercruiser Service manual for your motor. It has detailed carb rebuild directions with pictures. The Weber is probably the easiest carb there is to work on.
 
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