Author Topic: 1989 Glastron 170 Futura (Read 7494 times)

BirdManMN · « **on:** July 20, 2016, 03:10:19 PM »

Hi all... I'm new here and new to the glamorous world of Glastron ownership. I recently purchased a 1989 Glastron 170 Futura, and right off the bat I have a problem. I have a strong smell of fuel emanating from the innards of my hull. I removed the inspection ports and it appears that my hoses to the fuel tank are in dire need of replacement. My question is.... does anyone know where I might come by a schematic of sorts for the hose layout for this boat, and can I replace the hoses without having to cut the floor out of my boat?

Rich_V174SS · « **Reply #1 on:** July 20, 2016, 07:18:50 PM »

There are only 3 hoses to the tank and should be easy enough to figure out. There's a 1.5 inch fill hose, a 5/8ths vent hose and a line going from the pickup to the engine. However, if your hoses are that bad make sure the tank itself isn't rotting through prompting a full tank replacement. The floor panel above the tank might be removable.

Hyperacme · « **Reply #2 on:** July 21, 2016, 08:54:38 AM »

Welcome to the forum BirdmanMN !
Hope you get her sorted out and on the water soon.

WrenchWench · « **Reply #3 on:** July 21, 2016, 02:35:24 PM »

Futura 170 is outboard powered with inboard tank, correct? Then there should be 3 hoses as Rich said above. I have an 89 Sierra 160 which is the slightly less fancy cousin to your Futura 170 and that's how mine is laid out.

You should be able to replace them by removing the inspection covers and threading in new hose. May have to remove the rear seat backs to get access to the filler neck and possibly vent hose.

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Hyperacme · « **Reply #4 on:** July 22, 2016, 08:26:26 AM »

1989 Futura 170

BirdManMN · « **Reply #5 on:** July 22, 2016, 10:24:22 AM »

Yes... It is an outboard powered/inboard tank configuration. There are three hoses, two larger ones, and the smaller pickup line. I understand the larger "fill" hose... but what is the purpose of the other large hose? Where does that hose lead? Obviously the fill hose leads to the fuel fill port on the outside of the hull, but the other large hose has me confused.

Hyperacme · « **Reply #6 on:** July 22, 2016, 10:32:21 AM »

Most tank have fuel filler, fuel out (to motor) and breather (attached to side of hull above tank)

BirdManMN · « **Reply #7 on:** July 22, 2016, 11:18:53 AM »

Thanks, Hyper...

So, the larger hose in the fore inspection port next to the fuel gauge sending unit is likely the breather hose?

Hyperacme · « **Reply #8 on:** July 22, 2016, 11:42:57 AM »

Most likely ... Yes.
Air has to get in & out as you fuel up and use fuel while running motor.
Hose should go to a through hull fitting.

WrenchWench · « **Reply #9 on:** July 22, 2016, 03:07:50 PM »

BirdmanMN: yes, that's the vent hose. Next to the sending unit and accessible via the fore inspection port. Mine routes aft under the floor and leads to a breather mounted through the fiberglass in the splash well on the port side. I'll take some pics when I get home from work.

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BirdManMN · « **Reply #10 on:** July 22, 2016, 04:33:45 PM »

Thanks, everyone...!!!

WrenchWench, Pics would be greatly appreciated.

WrenchWench · « **Reply #11 on:** July 25, 2016, 10:47:29 PM »

Fore inspection port

Aft inspection port

This is looking up at an angle at the line going to the motor and the breather. The breather line is directly vertically above the fuel line (which is the newer smaller hose). These fittings pass through the port side of the splash well.

Photo of the breather on the outside of the splash well, directly above the fuel line for the engine.

Jen ~1989 Sierra 160~

BirdManMN · « **Reply #12 on:** July 26, 2016, 02:35:23 PM »

Thanks so much WrenchWench. Pics are worth so many words!

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WrenchWench · « **Reply #13 on:** July 27, 2016, 11:54:04 AM »

That they are. Let's see some pics of your boat!

Jen ~1989 Sierra 160~

BirdManMN · « **Reply #14 on:** July 28, 2016, 10:08:31 PM »

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WrenchWench · « **Reply #15 on:** July 29, 2016, 09:58:27 AM »

Nice lookin boat! I might even be a little jealous

Jen ~1989 Sierra 160~

BirdManMN · « **Reply #16 on:** July 30, 2016, 01:42:07 PM »

Thanks, Jen...

Your Sierra is awfully sharp too!
Where did you get your nice looking registration lettering?

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WrenchWench · « **Reply #17 on:** July 30, 2016, 02:58:51 PM »

www.doityourselflettering.com

Jen ~1989 Sierra 160~

BirdManMN · « **Reply #18 on:** August 01, 2016, 09:09:35 PM »

The tank breather hose! This looks a little past due for replacement. One down, two more to go!

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WrenchWench · « **Reply #19 on:** August 02, 2016, 10:06:13 AM »

Definitely needed replacing!

Jen ~1989 Sierra 160~