Getting the '69 back on the road...Question
Thread Starter
Racer
Joined: May 2004
Posts: 320
Likes: 0
From: austin tx
Getting the '69 back on the road...Question(Update with Pics)
Hey folks,
The vette has been sitting in the garage for months in need of attention and I finally have some time and extra cash to put in to it.
This morning, I replaced the leaking PSV with a remanufactured unit from VBP. It went in easily and didnt even have to adjust the centering. Also from VBP, I have a set of O-ring calipers to install once the rotors have been resurfaced.
Anyway, when I started it up to let the engine run for a bit, I noticed a fuel leak at the line going from the carb to an inline filter. It's a 3/8" line, but the inlet to the filter looks like it's made for a 1/4" line.
Is this filter even necessary?
The line coming from the top looks like runs back toward the tank...I assume this is just a vent/overflow tube(?)
(See update below)
Last edited by mlub; Feb 8, 2011 at 07:46 PM. Reason: Update
Melting Slicks
Joined: May 2009
Posts: 3,079
Likes: 315
2024 C3 of the Year Finalist - Unmodified
First of all, judging by the valve covers that does not look like the original engine for that car, either base motor or L46. Second, that Holley is not what the car came with...they all had Rochester Q-jets...which is why you have a fuel supply line and then a fuel return line from the filter back to the tank. Third, get rid of those rubber fuel lines on top of the engine. I suggest you find somebody other than Bubba to help you make your fuel system functional and safe. 
Thread Starter
Racer
Joined: May 2004
Posts: 320
Likes: 0
From: austin tx
First of all, judging by the valve covers that does not look like the original engine for that car, either base motor or L46. Second, that Holley is not what the car came with...they all had Rochester Q-jets...which is why you have a fuel supply line and then a fuel return line from the filter back to the tank. Third, get rid of those rubber fuel lines on top of the engine. I suggest you find somebody other than Bubba to help you make your fuel system functional and safe.
Burning Brakes
Joined: Dec 2008
Posts: 971
Likes: 45
From: Middlesex NJ
Did you say a corvette shop installed the fuel lines like that? You typically don't want more than 6" of rubber fuel line. The less the better. The 1/4" line was meant to be a return to your fuel tank, not meant to feed your carb.
That steel line sticking up in the air with 180 bend in it is supposed to go to the 1/4" vent line which is also supposed to be on the top of the filter right next to and inline with the outlet of the filter. Should look like this fileter if I am not mistaken.
http://www.parts123.com/parts123/yb....5Z5Z50000050G#
I don't know the numbers on your carb but get either the old school solid line for the fuel bowls or you can get pre made steel braided lines.
I prefer the braided lines because you can install the AN fitting into your fuel pump and run braided down to it as well.
http://www.jegs.com/i/Trans+Dapt/969/2197/10002/-1
http://www.jegs.com/i/JEGS+Performan...10822/10002/-1
That steel line sticking up in the air with 180 bend in it is supposed to go to the 1/4" vent line which is also supposed to be on the top of the filter right next to and inline with the outlet of the filter. Should look like this fileter if I am not mistaken.
http://www.parts123.com/parts123/yb....5Z5Z50000050G#
I don't know the numbers on your carb but get either the old school solid line for the fuel bowls or you can get pre made steel braided lines.
I prefer the braided lines because you can install the AN fitting into your fuel pump and run braided down to it as well.
http://www.jegs.com/i/Trans+Dapt/969/2197/10002/-1
http://www.jegs.com/i/JEGS+Performan...10822/10002/-1
Thread Starter
Racer
Joined: May 2004
Posts: 320
Likes: 0
From: austin tx
That steel line sticking up in the air with 180 bend in it is supposed to go to the 1/4" vent line which is also supposed to be on the top of the filter right next to and inline with the outlet of the filter. Should look like this fileter if I am not mistaken.
http://www.parts123.com/parts123/yb....5Z5Z50000050G#
http://www.parts123.com/parts123/yb....5Z5Z50000050G#
I don't know the numbers on your carb but get either the old school solid line for the fuel bowls or you can get pre made steel braided lines.
I prefer the braided lines because you can install the AN fitting into your fuel pump and run braided down to it as well.
http://www.jegs.com/i/Trans+Dapt/969/2197/10002/-1
http://www.jegs.com/i/JEGS+Performan...10822/10002/-1
I prefer the braided lines because you can install the AN fitting into your fuel pump and run braided down to it as well.
http://www.jegs.com/i/Trans+Dapt/969/2197/10002/-1
http://www.jegs.com/i/JEGS+Performan...10822/10002/-1
I'll post some pictures once I have it all sorted out!
Burning Brakes
Joined: Dec 2008
Posts: 971
Likes: 45
From: Middlesex NJ
Nice car by the way. I like those rims on the C3's.
That filter is expensive. My friend found his on ebay in the scratch and dent category. Take note that it does use flared connections so you would have to redo the steel lines with flared connections to use that filter.
That filter is expensive. My friend found his on ebay in the scratch and dent category. Take note that it does use flared connections so you would have to redo the steel lines with flared connections to use that filter.
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Safety Car
Joined: Oct 2005
Posts: 3,570
Likes: 1
From: Algonac Michigan
Please refer to this thread....
http://forums.corvetteforum.com/c3-t...l-filters.html
Melting Slicks
Joined: Feb 2006
Posts: 3,428
Likes: 5
From: Japan
If you're going to insist on running that Holley (And it's not that bad) you should eliminate as much rubber line as you possibly can from the fuel system. There's a reason why Chevrolet only used rubber from the frame to the pump, because that's where the flexible line is needed and nowhere else. GLASS filters ESPECIALLY are a HUGE fire hazard on Corvettes...if you go to Summit's website you will find zillions of aftermarket fuel manifolds made for Holleys, then all you need is a (preferably steel or aluminum) line to connect from the pump to that. That car looks way too nice to risk burning up in a needless fire...
Thread Starter
Racer
Joined: May 2004
Posts: 320
Likes: 0
From: austin tx
http://www.jegs.com/i/Trans+Dapt/969/2197/10002/-1
Yea she was my girlfriend at the time... Fiance now, we're getting married later this year
Pro
Joined: Dec 2006
Posts: 695
Likes: 5
From: tx
Brush up your do-it-yourself skills qwik! Your car is in serious danger running around how it is! Hard to believe a shop actually did that work. If you don't have the skills, I am sure someone in Austin does and will charge you accordingly - nonetheless, if you have to pay for it to be done right, then it is money well spent. I'd do it for you but I am in the DFW area.
Thread Starter
Racer
Joined: May 2004
Posts: 320
Likes: 0
From: austin tx
Brush up your do-it-yourself skills qwik! Your car is in serious danger running around how it is! Hard to believe a shop actually did that work. If you don't have the skills, I am sure someone in Austin does and will charge you accordingly - nonetheless, if you have to pay for it to be done right, then it is money well spent. I'd do it for you but I am in the DFW area.
Did your year not have a return line? or did you cap it off?
Melting Slicks
Joined: Apr 2002
Posts: 2,337
Likes: 14
From: Norfolk VA
I'm not sure about the fitting needed for that particular set up. I perfer using the factory type hard lines. I believe the fittings for that Holley are 2671 fittings. You can buy the 70-72 LT-1 hard lines, feul filter, and the y fitting from various corvette vendors, use braided steel lines like the ones pictured, or bend your own using stainless steel brake line. Good luck on the marriage, she's quite a looker.
Thread Starter
Racer
Joined: May 2004
Posts: 320
Likes: 0
From: austin tx
UPDATE
So I'm working on installing some stock metal lines with a stock filter.
I just need to bend a line to go from the aftermarket holley line to the top of the stock fuel filter.
I had a hell of a time getting the old filter to pump line removed, but with a line wrench and cheater pipe, finally cracked it loose. Unfortunately, when I got home from work yesterday I saw there was a small gas pool on my garage floor. It looks like the fuel is seeping from the rim on the upper part of the fuel pump. Maybe my cranking on that fitting created a leak?
So I'm working on installing some stock metal lines with a stock filter.
I just need to bend a line to go from the aftermarket holley line to the top of the stock fuel filter.
I had a hell of a time getting the old filter to pump line removed, but with a line wrench and cheater pipe, finally cracked it loose. Unfortunately, when I got home from work yesterday I saw there was a small gas pool on my garage floor. It looks like the fuel is seeping from the rim on the upper part of the fuel pump. Maybe my cranking on that fitting created a leak?
Racer
Joined: Jan 2011
Posts: 266
Likes: 0
From: York Pa.
UPDATE
So I'm working on installing some stock metal lines with a stock filter.
I just need to bend a line to go from the aftermarket holley line to the top of the stock fuel filter.
I had a hell of a time getting the old filter to pump line removed, but with a line wrench and cheater pipe, finally cracked it loose. Unfortunately, when I got home from work yesterday I saw there was a small gas pool on my garage floor. It looks like the fuel is seeping from the rim on the upper part of the fuel pump. Maybe my cranking on that fitting created a leak?
So I'm working on installing some stock metal lines with a stock filter.
I just need to bend a line to go from the aftermarket holley line to the top of the stock fuel filter.
I had a hell of a time getting the old filter to pump line removed, but with a line wrench and cheater pipe, finally cracked it loose. Unfortunately, when I got home from work yesterday I saw there was a small gas pool on my garage floor. It looks like the fuel is seeping from the rim on the upper part of the fuel pump. Maybe my cranking on that fitting created a leak?
Thread Starter
Racer
Joined: May 2004
Posts: 320
Likes: 0
From: austin tx
So upon further inspection, it looks like my efforts to break loose the old line actually damaged the bottom of the fuel pump.
Nothing like ruining a perfectly good original fuel pump while simply trying to replace some lines. Then again, the original engine is toast, so I guess I shouldnt stress to much about originality.
In other car news, I went to start my Tundra after work and the engine would crank but not turn over. The ABS light was on so I opened up the hood and a frightened squirrel with copper in his teeth jumped out of the engine bay. Apparently he was snacking on the wiring near the ABS.
I tried pulling back the jacket and twisting each wire back together to get me home, but no luck. ha, whatdya gunna do
Nothing like ruining a perfectly good original fuel pump while simply trying to replace some lines. Then again, the original engine is toast, so I guess I shouldnt stress to much about originality.
In other car news, I went to start my Tundra after work and the engine would crank but not turn over. The ABS light was on so I opened up the hood and a frightened squirrel with copper in his teeth jumped out of the engine bay. Apparently he was snacking on the wiring near the ABS.
I tried pulling back the jacket and twisting each wire back together to get me home, but no luck. ha, whatdya gunna do
Drifting
Joined: Apr 2007
Posts: 1,970
Likes: 45
From: Cameron Park CA
Here ya go:
I used a chrome fuel line similar to that Trans Dapt2197 but it has a threaded female thread on the end. I used the fittings shown to connect it to the OEM repro fuel filter which is mounted lower than the stock location. I made a new return line to mimic the stock one, but it's shorter for the lower filter. I use stainless line, a flare tool and a simple tubing bender to make my lines. It's not hard if you give it time and have enough tubing to make a few mistakes.
Pete
I used a chrome fuel line similar to that Trans Dapt2197 but it has a threaded female thread on the end. I used the fittings shown to connect it to the OEM repro fuel filter which is mounted lower than the stock location. I made a new return line to mimic the stock one, but it's shorter for the lower filter. I use stainless line, a flare tool and a simple tubing bender to make my lines. It's not hard if you give it time and have enough tubing to make a few mistakes.
Pete