Please help identify

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blazingspider
Posts: 110
Joined: Mon Jan 28, 2013 8:44 am
Your car is a: 1977 fiat spider
Location: Greenacres, FL

Re: Please help identify

Postby blazingspider » Tue Jun 27, 2017 6:54 am

Mine has the 3-way part, with the 3 hoses in and 1 out, but it is smaller and works as a fume collector (and assumed liquid separator).

Maybe he has a sealed replacement cap when a vented cap was original on his configuration? :?:


Any spider that came with an evap emissions system did not come with a vented gas cap and they also have a 3 to 1 fume collector in the trunk.

The schematic for the carb'd version of the evap emissions system is quite a bit different than the one for the fi cars.

The fi cars have that check valve underneath the car and no 3 way valve in the trunk. The carb'd cars have the 3 way valve in the trunk with no check valve underneath the car.

Make up air in a carb'd car is pulled from a small orifice built into the body of the 3 way valve. Make up air for fi cars is pulled from the charcoal cannister.

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Nanonevol
Posts: 663
Joined: Thu Nov 13, 2014 9:17 am
Your car is a: 1977 Fiat 124 Spider
Location: Medway, Massachusetts

Re: Please help identify

Postby Nanonevol » Tue Jun 27, 2017 10:00 am

Can anyone explain why there would be 3 hoses coming from the tank merging into one hose (see RRoller's diagram and my photo at top of thread)?
1977 Fiat Spider
1985 Jaguar XJ6
1967 Triumph Bonneville (hard-tail chopper)
1966 BSA Lightning

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RRoller123
Posts: 7015
Joined: Sun Nov 13, 2011 2:04 pm
Your car is a: 1980 FI SPIDER 2000
Location: PLYMOUTH, MA USA
Contact:

Re: Please help identify

Postby RRoller123 » Tue Jun 27, 2017 11:49 am

Probably to provide enough volume for the fumes to condense into a drop and flow back down into the tank? It only makes sense if it has something to do with a minimum necessary volume in that section of the line, as there is no anti-tip-over leak valve or anything like that there.
'80 FI Spider 2000 (rolling "resto")
'74 X1/9 (many years ago)
'79 X1/9 (fewer years ago)
'86 Jaguar XJ6 (2nd Hobby Car)
2011 Chevy Malibu (daily driver)
2010 Chevy Silverado 2500HD Ext Cab 4WD/SB
2015 Keystone Montana High Country 343RL


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