carbking,I don't have the carb numbers on me, but the other carb does have the airvalve.Also I did read that some have it and some don't,but they should be the same on both engins.The owner did say that when motor was first put in this time it ran better than before but keeps getting worse,I think because compression is going away-less vacume to pull fuel in.I just spoke to marrysville mairne and they will send another carb with the airvalve in it.Hopefully this fixes it before it blow's completely as he will want his money back from a couple previous motors.geeze I hope this put's a feather in my cap!
Yeah hotrod,these are the afb carter's weighted air valve.I've worked on quite a few mercruisers,always messing with your head on stuff! I do like the quadrajets though,simple to set up and work right.{some people hate them}
This one I'm working on is a chrysler big block though.
Back to mercruiser, I've got one that the owner swapped intake, edelbrock, swapped carb, holly 750,installed electronic ign,from an old car.
now I can't seem to get it through his head that the motor was probbally wore out to begin with and all he did was multiply his troubles......I think I'll just pull out my hair=throw my arms in the air-and crack a beer!!! lol
Thank's guy's for the reply's
