1975 Glastron V 178 fuel tank question

[monk-monk]

I recently purchased a 1975 Glastron V 178 Bow Rider with a Mercury inline six outboard engine. The boat has an inboard fuel tank under the bow deck...the filler neck for the tank is on the starboard side and just below the filler hole is the vent cap for the tank...this vent has 2 small holes on the bottom with screens in the holes...My question is should i use a water seperater before the motor...i have always used the 6 gallon remote tanks so im trying to learn about this fuel set up..Thanks!

 

[NYBo]

Re: 1975 Glastron V 178 fuel tank question

I would. In fact, I installed one this fall.

 

[monk-monk]

Re: 1975 Glastron V 178 fuel tank question

Thanks, i will study up on water seperators...that vent is about 6" below the filler neck and it just looks to me like water could splash into that vent...looked risky to me..LOL...thats why i inquired...

 

[Bondo]

Re: 1975 Glastron V 178 fuel tank question

Thanks, i will study up on water seperators...that vent is about 6" below the filler neck and it just looks to me like water could splash into that vent...looked risky to me..LOL...thats why i inquired...

Ayuh,... The hose coming off the vent fitting, should loop Up, before it drops to the tank...
The Up loop keeps water out of the tank...

 

[PiratePast40]

Re: 1975 Glastron V 178 fuel tank question

On an older boat, its a good idea to check ALL of your fuel system components . I ended up upgrading all of my fuel lines to Coast Guard approved A1 hoses. and replaced the anti-syphon valve. I also installed a fuel/water separator and got rid of the small inline filter. The Coast Guard regs have been upgraded since our boats were built. It's not mandatory to upgrade but IMO, it's just common sense.

 

[NHGuy]

Re: 1975 Glastron V 178 fuel tank question

Hey I grew up with one of those Glastrons. I had many years of fun in that boat.
It's easy to put in a water separator, and probably a good idea. Your best practice is to carry a separate tank til you trust the fuel gauge. Don't run the tank to empty til you have a filter on the fuel system, there might be some debris in there.

 

[monk-monk]

Re: 1975 Glastron V 178 fuel tank question

Wow...Thanks a bunch guys!! Great idea on looping the hose, mine currently is not...and what about the anti-syphon valve, i have had the tank out and it looks great inside and out BUT i did not see anything that looked like an anti-syphon device...does the primer bulb take the place of the anti-syphon valve? The line from the tank to the back of the boat is a piece of copper tubing...is that correct ? Thanks very much for all the replies...!!!

 

[Bondo]

Re: 1975 Glastron V 178 fuel tank question

i have had the tank out and it looks great inside and out BUT i did not see anything that looked like an anti-syphon device...does the primer bulb take the place of the anti-syphon valve? The line from the tank to the back of the boat is a piece of copper tubing...is that correct ?

Ayuh,... Normally, the anti-siphon valve IS the hose barb at the tank's outlet...

I prefer using rubber hose, rather than copper tubing...
CG approved hose is available in bulk at most Marine Shops...

 

[PiratePast40]

Re: 1975 Glastron V 178 fuel tank question

The anti-syphon valve is integral to the fitting at the tank outlet. It's purpose is to prevent the tank from gravity draining if a fuel line is disconnected or cut downstream of the tank. It's not required in all circumstances so it's best to read the regs and see if it pertains to your configuration.

Here's a link to the Coast Guard web site and the regulations: http://www.uscgboating.org/regulations/federal_regulations.aspx

http://law.justia.com/us/cfr/title33/33-2.0.1.8.44.html#33:2.0.1.8.44.10

Some of these safety regulations were put in place after our boats were built so the boats may not have the updated safety features. It's up to you to determine if you think it's worthwhile for you to upgrade. At the very least, it gives you a starting point to look for potential problems. Let's face it, with a boat that old, you really don't know what you have until everything is inspected.

For me, doing everything to current safety regs was a no brainer since I tore everything out and replaced the complete fuel system from the tank on back.

LOL - Bondo - you're another one who is a faster typer than I!