fuel line requierments

[rthomas]

Santa got me a new Edelbrock 1409 to replace my tired Qjet, do I need to make a new hard line or can I run a hose?

 

[cr2k]

Re: fuel line requierments

You can run a hose, but it must be Marine rated, I believe A1 for inboards and B2 for outboards.

 

[Alpheus]

Re: fuel line requierments

It should be a hard line...

 

[Fishermark]

Re: fuel line requierments

It doesn't have to be a metal line, you can use either.

If you want to run a metal line, the cheapest and easiest way is to determine the lenght you need, then go and buy a length of straight pre-flared metal fuel line from your local auto parts store. Use a tubing bender to bend it into the approprate shape and you are done.

If you want to use rubber hose, be sure to buy type A1 marine hose and the appropriate barbed fittings. Either way is Coast Guard approved.

 

[mkast]

Re: fuel line requierments

http://www.uscgboating.org/regulations/boatbuilder_s_handbook/fuel_intro.aspx

 

[rthomas]

Re: fuel line requierments

I want to run a hose for the last 12" so I can add an inline filter, right now all of my filtering is ahead of the fuel pump witch is ok with the Qjet because it has a small internal filter, the edelbrock does not have this. I know its a long shot that small pieces of a failing diaphram, scale or whatever else could come out of the FP and make its way to the carb, but its possible. Thanks for the replies -Russ

 

[Fishermark]

Re: fuel line requierments

I want to run a hose for the last 12" so I can add an inline filter

That's the one thing that is NOT allowed. The filter cannot simply be an inline filter. It has to be attached to the engine in some fashion, and cannot simply be an inline filter.

 

[rthomas]

Re: fuel line requierments

I should probably read the regs a little closer, I wonder if mounting it with a band clamp or holy strap would suffice?

 

[zbnutcase]

Re: fuel line requierments

No need for filter as the Edelbrock carbs have filter screens at the inlet seats, and type A1 hose won't rust out like a non-stainless steel hard line will...

 

[Ike-110722]

Re: fuel line requierments

I am having great difficulty posting today so bear with me.
My first question is; is that Edelbrock a marine carb? I fit is you are putting yourself at great risk. Auto and marine carbs may look the same on the outside but they are not the same on the inside. There are significant differences. Yes they cost more but there are good reasons for that.

All fuel system components on a boat must be capable of passing a 2 1/2 minute fire test. Auto inline carbs likely cannot meet that. Also USCG regs require the filter to be supported by the engine or the boat structure:

Sec. 183.570 Fuel filters and strainers: Installation. Each fuel filter and strainer must be supported on the engine or boat structure independent from its fuel line connections, unless the fuel filter or strainer is inside a fuel tank.

They do not have to be within 12 inches of the engien, but fuel pumps do.

You may use metal fuel line between the pump and the carb, but if you use hose it must be USCG Type A1. Between the fuel tank and pump it may be either A1 or B1.
There is a section on clamps and straps .
Here are some links for you:
http://newboatbuilders.com/pages/fuel.html
http://newboatbuilders.com/pages/33CFR_Fuel.html (the USCG regulations.
http://www.uscgboating.org/regulations/boatbuilder_s_handbook/fuel_intro.aspx ( the USCG guidelines on gasoline fuel systems)

As was said there are reasons for these regs. gasoline boats occasionally go boom and spoil someone's day. Studies have shown these explosions are almost always due to lack of maintenance, poor maintnenance, or using automotive parts. Do not use automotive parts on a boat. It is a sure way to make it go boom.

 

[Fishermark]

Re: fuel line requierments

My first question is; is that Edelbrock a marine carb?

You're right that it needs to be a marine carb... and the Edlebrock 1409 that the op mentions is a marine carb. In fact, in my opinion, it is the BEST marine carb you can use.