is this normal fo a new motor?

[scottandrea]

hi all ,just baught a new 18f maxim with a 3.0 mercruiser. the motor has that new e-z start carb. the motor runs rough at idle and makes a loud hisss noise at idle(sounds like an air compressor hose) and the thing just started making valve train noise This is my first I/O so i am not sure if any of this is normal fo an I/O. I have always had outboards. thanks

 

[Daddy5295]

Re: is this normal fo a new motor?

Your motor should run and sound like a car motor. My opinion not thats not normal. Is the boat brand new? I think I would be making a trip to the dealer for some warranty work.










2002 Chapparal 4.3L Mercruiser

 

[kellydee]

Re: is this normal fo a new motor?

hi all ,just baught a new 18f maxim with a 3.0 mercruiser. the motor has that new e-z start carb. the motor runs rough at idle and makes a loud hisss noise at idle(sounds like an air compressor hose) and the thing just started making valve train noise This is my first I/O so i am not sure if any of this is normal fo an I/O. I have always had outboards. thanks

If you're talking about the Turn Key Start,I've got a brand new 2007 5.7l TKS.It makes the same loud hiss,until she warms up.Also,sounds like a knocking or rattling,until she warms up.Both noises disappear when she's warm.54 hrs on mine now and no problems.Jerry

 

[Manipulator]

Re: is this normal fo a new motor?

Why can't they just let things be simple? This whole "turn key start" is just more junk ready to go wrong.

 

[sea wolf]

Re: is this normal fo a new motor?

If you're talking about the Turn Key Start,I've got a brand new 2007 5.7l TKS.It makes the same loud hiss,until she warms up.Also,sounds like a knocking or rattling,until she warms up.Both noises disappear when she's warm.54 hrs on mine now and no problems.Jerry

If I had a brand new boat & it knocked on a cold startup, I'd have it at the dealer's pronto. If anything, just to have a record in case there's a problem in the future. It's called cover your azz.