Hydrolock Summer...

[vamram]

Well, used a compressor on the evap lines front to back. Everything was clear from where the line turns towards the back of the car. BUT - the section going left to right from in front of the driver along the firewall to the front of the passenger side was clogged.

Picture's not good, and I crushed the end of it trying to break off the clip holding the hard plastic line to it coming down from the evap canister in the cowl. I couldn't unclog it w/the compressor, so i'll try a wire this weekend. If I can't do that, I'll run an alternative line, perhaps steel tubing, or e-rated fuel line.

The hard brown plastic line that runs down from the cowl to the front hard line was also clogged where it joins the steel line. I was able to blow that line clear. There was no smell of gas in the gunk, more like corrosion. Until I repair, the tank will vent the old-fashioned way - down to the street in front of the driver.
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Give peace a chance - Stop Russian-Soviet Aggression!!

'74 Super 9/16 - present, in refurb process.
'73 Super - 6/18 - Present - Daily Driver!
'75 Super Le Grande...waiting it's turn in line behind '74.
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Save the Supers!!

[Tim Donahoe]

Nice to know this can happen. But what a weird lot of shit you've been having, Victor. Geeze.

Tim
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Richard O'Brien

[vamram]

[vamram]

[mark tucker]

I think cb performance has some good oe style pumps. witch reminded me I need to order some just incase they go the way of the rest of the good parts....china way. my pump is so old..... filter befor and 2 after to be sure shit dont get into the pump and one befor each carb to be sure if the pump takes a shit the carbs dont get a dose...and there the dreaded plastic filters so i can see the fuel&crap..well if there was any crap. I only use marine USCG approved filters.(west marine) not the .50 cetnts filters at the carshows.

[Tim Donahoe]

I forgot to add this: the plastic-encased charcoal canisters have a small sponge, located inside them. This sponge is just inside of the canister and is located just beyond the hose from up front. The OEM sponge is made of a very fine filtering, spongy material that, after so many miles, deteriorates and forms a clump.

The metal canisters may not have had this sponge. I've only done an r&r on the plastic ones that have a lid which you can carefully remove to get to all the stuff inside it.

When I first got my bug, the canister was missing, so I bought one from The Samba Classifieds. When I opened it, I noticed this quarter-size sponge at the bottom of the canister. The sponge was nothing but packed mush. So I removed it and got one of those green lawnmower air filters from ACE Hardware and cut a round piece of it to fit into the inner tube of the canister. I figured if oil didn't harm this filter material, fuel fumes wouldn't, either. I was correct.

I mention this, just in case you have a later '70's style charcoal canister--and the clearing of the line back to the canister doesn't stop your issue.

Good luck, Victor,

Tim
_________________
Let's do the Time Warp again!

Richard O'Brien

[vamram]

Tim, thanks for the info. I did confirm that the canister's not clogged. I disconnected the hose from it to the air cleaner and could feel air blowing thru is lightly at idle and then w/more pressure when I revved it up. Also - the line running down the passenger side was bone dry so this guy's been plugged probably since before I bought the car. Canister is also probably new and clean inside like the day I finished restoring it.
_________________
Eventually, "we are what we pretend to be.’”
Give peace a chance - Stop Russian-Soviet Aggression!!

'74 Super 9/16 - present, in refurb process.
'73 Super - 6/18 - Present - Daily Driver!
'75 Super Le Grande...waiting it's turn in line behind '74.
Click to view image
Save the Supers!!

[blood]

Please take your charcoal canister out and inspect it, if it get contaminated by raw gas from over filling or gas expansion the charcoal pellets inside break loose and plug the lines to and from it. That is why it went whoosh when you loosened the fuel cap. The more common symptom of this problem is that the car runs out of fuel, starvation, on longer drives, I have repaired forty or so cases like this. David

[vamram]

The charcoal canister is fine, I confirmed that early on. The issue was the metal line that runs left to right across the front firewall, just above the master cylinder.

I finally got around to pulling it today. The first 8" or so on the driver side of the line were almost solidly clogged w/what I guess is decades of fuel varnish and line/tank corrosion. I used a pipe cutter to remove the 1/4" I crushed when separating from the plastic down line from the expansion chamber in the cowl. Then I put it in a vise and used 16 guage steel wire forced in until i was able to get it all the way thru the line.

Once I was able to run it thru a few times, I sprayed the crap out of it w/carb cleaner and brake cleaner until the fluids came out clear. Then I pushed thru the steel wire again. By this time it went much easier, and I sprayed it clean as well w/the wire in the tube until the wire came out clean w/out the brown varnish gunk.

I reinstalled the line, connected it to the plastic down line, cut a slightly longer soft line to join it w/the hard line running under the passenger side.

Evap system complete and clear!!

Now to see what happens on the next 90+ day....
_________________
Eventually, "we are what we pretend to be.’”
Give peace a chance - Stop Russian-Soviet Aggression!!

'74 Super 9/16 - present, in refurb process.
'73 Super - 6/18 - Present - Daily Driver!
'75 Super Le Grande...waiting it's turn in line behind '74.
Click to view image
Save the Supers!!

[vamram]

Well, days in the 90s have come and gone, no issues. Also drove to volksbash in Dover today, about 230 round-trip with temps in the mid to high 80s, no problems. I think I finally conquered this summer's gremlins!
_________________
Eventually, "we are what we pretend to be.’”
Give peace a chance - Stop Russian-Soviet Aggression!!

'74 Super 9/16 - present, in refurb process.
'73 Super - 6/18 - Present - Daily Driver!
'75 Super Le Grande...waiting it's turn in line behind '74.
Click to view image
Save the Supers!!

[Tim Donahoe]

Thanks for the heads up, Victor. Who woulda thought?

Tim
_________________
Let's do the Time Warp again!

Richard O'Brien

[airschooled]

Hey thanks for getting back to us!
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