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Old 05-23-2016, 01:47 PM   #1
Mick54615
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Abandoned lines

I was looking around the underside of my 1970 Blazer and noticed 5 abandoned lines at the very rear passenger side. They are about 3/8" hard line with flared ends. Anyone know what these were for?
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Old 05-23-2016, 01:52 PM   #2
A1971Blazer
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Re: Abandoned lines

I would like to know this too......

I assume they're part of the fuel emission system...? The ones on mine still had rubber hoses attached but they were all cracked...the first time I filled it up with fuel...gas started running out of one of them....I replaced all of them with new lines and that stopped the leaking fuel...

There's also some funky looking set-up inside the bed, on the opposite side from the gas fill hose, with several lines running up and down on it too?
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Old 05-23-2016, 03:46 PM   #3
Mick54615
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Re: Abandoned lines

Mine are on the opposite side of the filler neck.
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Old 05-23-2016, 03:51 PM   #4
A1971Blazer
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Re: Abandoned lines

Quote:
Originally Posted by Mick54615 View Post
Mine are on the opposite side of the filler neck.
exactly...that's where mine are.....this is the contraption on the inside passenger side rear....
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Old 05-23-2016, 04:12 PM   #5
Mick54615
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Re: Abandoned lines

I'll have to do a double check but I don't remember seeing that in mine. Could be that they were cut out and I only have the remains underneath.
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Old 05-23-2016, 04:46 PM   #6
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Re: Abandoned lines

Never seen them, but some may have added Hickey Aux fuel tanks... http://67-72chevytrucks.com/vboard/s...d.php?t=295985
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Old 05-23-2016, 07:04 PM   #7
A1971Blazer
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Re: Abandoned lines

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Originally Posted by notsolo View Post
Never seen them, but some may have added Hickey Aux fuel tanks... http://67-72chevytrucks.com/vboard/s...d.php?t=295985
That's a distinct possibility......there are two holes that have been welded over on the outside but not on the inside.....they look like the were just puttied over and painted.........also there's a remnant of an old "T" valve under the passenger seat.....I'm certain there were extra tanks at some point.
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Old 05-23-2016, 07:10 PM   #8
Mick54615
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Re: Abandoned lines

Look what I found. Near as I can tell, it's a vapor recovery for the gas tank?
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Old 05-23-2016, 09:24 PM   #9
DeadheadNM
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Re: Abandoned lines

That's curious. FWIW I have two 72 K5s, each originally outfitted w CA emissions and neither have similar lines.
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Old 05-23-2016, 09:43 PM   #10
Mick54615
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Re: Abandoned lines

Maybe by 1972 they had done away with this version....
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