Marine Carb or Not
02-16-2005, 03:21 PM
#41
Registered
Re: Marine Carb or Not
The fuel curve, and metering circuitry needs to be set up differently for a carburetor with or without "J" Vent Tubes.
When I worked in the marine industry we had a boat catch on fire in the yard, and insurance would not cover it because some of the items on the engine were not USCG legal, even though that had nothing to do with the reason for fire.
For the slight difference in price, and performance why you you want to risk it?
When I worked in the marine industry we had a boat catch on fire in the yard, and insurance would not cover it because some of the items on the engine were not USCG legal, even though that had nothing to do with the reason for fire.
For the slight difference in price, and performance why you you want to risk it?
02-16-2005, 08:57 PM
#42
Toxic FORMULA
Platinum Member
Re: Marine Carb or Not
J tubes ...no J tubes 
The 330/454 415/502 356/454 all with Quadrajets don't have J tubes from Merc 
.
The 330/454 415/502 356/454 all with Quadrajets don't have J tubes from Merc .
Last edited by mopower; 02-16-2005 at 09:00 PM.
02-17-2005, 06:43 AM
#43
Registered
Re: Marine Carb or Not
Originally Posted by SledgeHammer
Can anyone actually quote the exclusion in their policy that says there is no coverage if you use non USCG equipment? I have checked mine and there is no such exclusion. If anyone can quote the exclusion from their policy, name the company as well. I am not advocating using non USCG equipment, but I have seen these comments frequently about what insurance companies won't cover. If it is not specifically excluded, then it is covered.
02-17-2005, 08:22 AM
#44
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Re: Marine Carb or Not
I believe the vent tubs are cut at an angle so they will still pour down the carb throat.
Gary
Gary
Originally Posted by mopower
J tubes ...no J tubes The 330/454 415/502 356/454 all with Quadrajets don't have J tubes from Merc .
The 330/454 415/502 356/454 all with Quadrajets don't have J tubes from Merc .
02-17-2005, 12:12 PM
#45
Registered
Platinum Member
Re: Marine Carb or Not
Whether or not your carb is marine spec will be a mute point when your boat catches fire from the engine compartment. Years ago my 750 holley melted and disapeared down into the intake manifold - Don't think an insurance adjuster would have been able to tell what kind of carb it was - cause it was gone! - Same with alumn valve covers and exhaust manifolds. -- fiberglass burns pretty damn hot.
02-17-2005, 12:13 PM
#46
Toxic FORMULA
Platinum Member
Re: Marine Carb or Not
Holley has angle cut vent tubes also 
. Lookin at those Quads. if the gas came out the vents , your guess is as good as mine which why the gas would go. depends which way the boat was rocking , I guess 
The 350 Mags with the Webber carb that looks like the old Carter AFB is the same way too . So what make them ok
. Lookin at those Quads. if the gas came out the vents , your guess is as good as mine which why the gas would go. depends which way the boat was rocking , I guess The 350 Mags with the Webber carb that looks like the old Carter AFB is the same way too
. So what make them ok
