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Doorgunner's '68 Convertible Project

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Old Sep 2, 2015 | 05:46 PM
  #1721  
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Originally Posted by doorgunner
Exactly!


Naturally.....there were more errands today....but I picked up more plumbing stuff on the way home.......then this happen in about two hours (No More Hot Fuel Lines!)..................




The regulator supply and return lines are installed......I had to angle the regulator down about 1/2" to clear the air plenum................







It's a close fit/about 1/8" gap b/twn the regulator and the plenum.....I'll put a 1/8" gasket under the plenum later.......






Tomorrow I'll finish running the return line to the gas tank, then run the pump, check the fuel pressure at the carb, adjust the regulator and go for a test drive.
Test Drive coming up!

ZIO
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Old Sep 2, 2015 | 05:49 PM
  #1722  
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Originally Posted by doorgunner
Exactly!


Naturally.....there were more errands today....but I picked up more plumbing stuff on the way home.......then this happen in about two hours (No More Hot Fuel Lines!)..................




The regulator supply and return lines are installed......I had to angle the regulator down about 1/2" to clear the air plenum................







It's a close fit/about 1/8" gap b/twn the regulator and the plenum.....I'll put a 1/8" gasket under the plenum later.......






Tomorrow I'll finish running the return line to the gas tank, then run the pump, check the fuel pressure at the carb, adjust the regulator and go for a test drive.
Test drive coming up! May the force be with you. Go Tony Go!

ZIO
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Old Sep 2, 2015 | 05:55 PM
  #1723  
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Test drive? Plans for existing tires? Just wondering.
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Old Sep 2, 2015 | 06:04 PM
  #1724  
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Originally Posted by rvzio
Test drive coming up! May the force be with you. Go Tony Go!

ZIO
Originally Posted by Calo69
Test drive? Plans for existing tires? Just wondering.


Yes fellow Members....................

Test Drive # 15 will happen tomorrow.....maybe I'll be able to go more than 50 miles/trouble-free!

Annnnnnnnnnnnnd.......the tires are new/maybe 300 miles on them.


Last edited by doorgunner; Sep 2, 2015 at 06:09 PM.
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Old Sep 2, 2015 | 06:04 PM
  #1725  
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Good job gunner
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Old Sep 2, 2015 | 06:11 PM
  #1726  
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Originally Posted by AirborneSilva
Good job gunner
I couldn't have done it without you guys keeping me on track!

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Old Sep 2, 2015 | 08:40 PM
  #1727  
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Originally Posted by doorgunner
I couldn't have done it without you guys keeping me on track!

Loving the tutorial.

Time for a drive, I'll be there cheering you on!

Mike
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Old Sep 2, 2015 | 08:57 PM
  #1728  
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Originally Posted by Mike21175
Loving the tutorial.

Time for a drive, I'll be there cheering you on!

Mike

The original plan was to drive to Academy and buy a GoPro........but the fuel pump delayed that!


If the car behaves tomorrow I'll try to get a camera and post some video this weekend.


91200

Last edited by doorgunner; Sep 3, 2015 at 03:23 AM.
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Old Sep 3, 2015 | 09:37 PM
  #1729  
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No test drive yet....I started the car today.....found one fuel leak---tightened the fitting and checked/re-set the timing now that the distributor is working correctly.

The regulator was set for max pressure/9psi which caused the car to run as though the choke had closed (the air plenum was removed...the choke was fully opened).

I adjusted the pressure down slowly and midway the engine idled smoothly.

It starts well now in about two engine revolutions cold or hot.....no more constant cranking with the accelerator to the floor.

There is visible fuel return inside the tank....all is well.
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Old Sep 3, 2015 | 11:25 PM
  #1730  
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Here are some carb/fuel line temperature pre-upgrade/post-upgrade:

98* ambient air temp in the garage/no air circulation....................

Fuel line on passenger frame rail................pre: 190*F post: N/A

Fuel line mod. on passenger firewall............post: 115*F (75* drop vs frame rail )

Fuel line at mech. pump.............................pre: 195*F post: N/A

Fuel line mod from firewall to regulator........post: 105*F

Fuel line mod. at carb inlet.......pre: 150*F post: 105* (45* drop)......I had to adjust air bleed screws on carb out 3/4 turn.

All these post temps. will drop approx. 5-10 degrees with the car parked and running outside on the driveway.

Remember.....I would never do these mods to an original car.

But this has been "fun"/educational for me seeing the changes take place.

Now......to get the jackstands from under it..................AGAIN!

Last edited by doorgunner; Sep 4, 2015 at 11:22 AM.
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Old Sep 4, 2015 | 09:26 AM
  #1731  
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Gunner, those are impressive temp. differentials, fairly simple and economical, makes you wonder why it wasn't done in first place.
Now put a damn A/C unit in the garage so we can see a temp. diff. From 98 to at least 80 deg.
Good job, now hit the road.
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Old Sep 4, 2015 | 11:20 AM
  #1732  
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Originally Posted by Calo69
Gunner, those are impressive temp. differentials, fairly simple and economical, makes you wonder why it wasn't done in first place.
Now put a damn A/C unit in the garage so we can see a temp. diff. From 98 to at least 80 deg.
Good job, now hit the road.
I guess it was the technology of the time and GM wasn't going to "fix anything that worked or cost more."

When you have to adjust the idle air screws 3/4 turn total each screw, you know the engine is liking the cooler fuel!!!!

The yard work is done......now to install that fuel pump relay (so I don't forget to unplug the fuel pump power wire when I park the car....I already have the fuse block maxxed out with two e-fan relays, electric x-tra loud air horns, security system relay, etc!

"Be back in a few hours".
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Old Sep 4, 2015 | 10:59 PM
  #1733  
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There were too many interruptions today......but I did completely wire the relay in and the pump is "key On" now.....

the car is STILL on jackstands though








Last edited by doorgunner; Sep 4, 2015 at 11:10 PM.
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Old Sep 5, 2015 | 05:52 AM
  #1734  
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Originally Posted by doorgunner
there were too many interruptions today......but i did completely wire the relay in and the pump is "key on" now.....

The car is still on jackstands though








getting closer!!

Last edited by SB64; Sep 5, 2015 at 05:55 AM.
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Old Sep 5, 2015 | 09:26 AM
  #1735  
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Originally Posted by rvzio
getting closer!!


Y E P !


I'm taking it off the stands this morning and going for a drive.......

I hope!


91600

Last edited by doorgunner; Sep 5, 2015 at 09:36 AM.
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Old Sep 5, 2015 | 01:29 PM
  #1736  
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Originally Posted by doorgunner
Y E P !


I'm taking it off the stands this morning and going for a drive.......

I hope!


91600
ANNNNNDDDDDD WEEEEEE ALL WAIT!
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Old Sep 5, 2015 | 02:28 PM
  #1737  
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Originally Posted by rvzio
ANNNNNDDDDDD WEEEEEE ALL WAIT!
Dang...is he broken down or still out enjoying the ride?
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Old Sep 5, 2015 | 02:31 PM
  #1738  
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Hopefully into the second tank full.
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Old Sep 5, 2015 | 02:33 PM
  #1739  
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Originally Posted by rvzio
ANNNNNDDDDDD WEEEEEE ALL WAIT!
STILL WAAAIIIIIITTTTIIINNNGGGGG
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Old Sep 5, 2015 | 03:34 PM
  #1740  
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Check the local news stations.
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