when you rebuild the tb's just make sure you do them one at a time. if you have a helper and you wanna do them both at the same time make sure you are apart, I helped the guy who i bought mine from and some how at some point we swapped the driver's side and passanger side tops. the fuel pressure regulator was on the front not the back and it really messed up how the car ran, he bought a new rear injector for it because we thought it was plugged.... 256.00. after i got it I really dove into it and realized the mistake swapped them around adjusted it and havent had an issue with the fp since.

Hello all.

I decided to do them one at a time.  I did the front one first and that went smoothly.  All the new stuff fit and went back together easily.  The rear I had a slight problem getting the new o ring to fit.  It just seemed too large.  I ended up cleaning and inspecting the original and reusing that one.  The rebuild kit only had one screen in it so I ended up cleaning both old screens and reusing the best looking one.  The rear TB leaked as soon as I turned the key and I took it apart and using the original o ring it went back together ok.

Baby started on the first crank and leak checked ok.  It is now 103*F so, I'll let everything cool down a bit before reinstalling the air filter and breather.

I used my vice contraption for taking apart and reassembling the pressure assys.  I have the vice mounted on a heavy 10"x 7" piece of butcher block.  It is easy to position  and massive enough that circuit boards and small things are held great.  If I need to bang on something I can clamp it to the bench or work horse where ever I needed it.  Most of the time my old fixed location was pretty limited.
 

Thanks for the help and encouragement. 

Keith
kwoody2011-06-22 12:08:16

Good deal, glad it went smoothly for the most part

Thanks Chip.  I'll button her up and take her down the road for a good check ride.  We are forecast for 108*F and it just hit 104*F so, it will be a good hot check.  I have not adjusted the fuel pressure yet so it will be a short test ride.  Thanks for the step by step.  The vice worked out well with the pressure assy.  The rubber inserts kept everything looking good.

Keith

Hello, 
After taking Baby out for a nice hot test drive, I parked in the garage and noticed a bubbling sound coming from the gas tank.  I opened the gas cap and there seemed to be a big release of pressure.  I closed the gas cap and waited 10-15 seconds.  Opened it again and more pressure and more bubbling sounds. The gas caps are vented for letting air in but not out, Right?   Temp was right around 105*F.  The road temps could have be up around 115*F for about 40 minutes.  I have never noticed this kind of bubbling sound before putting in the higher volume/pressure fuel pump...

Any thoughts?  I also have a very active Check engine light.  I'll pull the codes when it cools down a little. 

Keith

Ive never had any pressure or bubbling from my tank or a release of pressure.  When you released the pressure the first time and put the cap back on, was the car running between the first and second opening of the tank?  You installed the new pump several days prior to rebuilding the throttle bodies I think, was everything OK after the pump install but before the TB rebuild?  Very strange!!

Joel, have you ever heard of anything like this?
Crossfire19822011-06-23 16:28:13

Hi Chip.   The car has been sitting mostly since I replaced the fuel pump.  So this was the first long drive it has been on since both were completed.  It was also the hottest day so far this summer.  I took the gas cap off and it vented.  I replaced the cap and listened for the sound, heard the sound and about 15 seconds later removed the cap again.  It could be the ethanol gassing off.  I hate that stuff.  It also absorbs water. Unlikely here.  Our humidity has been running in the <17% range for weeks.

When driving it occasionally will loose power then the engine light comes on then just the power kicks back in ok..  It will work ok for a few minutes and then repeat.  The codes show O2, and running excessively rich.  Next, I'll pull and replace the plugs.  I bet they are original.  I got baby with 43,000 miles and was told the plugs were original. They were pulled, cleaned and regapped by my last vette mechanic at least once in the past 7 years I've had Baby.

Still having fun in the sun.
Almost forgot.  The car was not running and I did not restart it.

Keith
kwoody2011-06-23 20:07:05

My 82 runs rich also before and after I put in a new fuel pump.  I can smell it when I check the exhaust out.  I also know because the mileage is so darn bad. 

I sure would like to figure out how to lean it out a little.

Tb2k82CE2011-06-24 00:20:06

An O2 sensor code is telling you the fuel is either too rich or too lean....either that, or the 02 sensor just suddenly took a doo-doo. Since you just went thru the infectors and the regulator, I would have to suspect one or the other is causing the problems. A regulator that is opening too much, or at too low of a pressure would cause a lean condition, cause it to loose power at times, AND possibly give you the bubbling noises you hear in the tank. If it is returning a LOT of fuel back to the tank, it will aerate the fuel.

Keith,  When you had the adjusting screw and the attached "tab" out of the fuel pressure regulator did you make any change in the screw to change the location of the tab on the screw?  Any change in the location of the tab on the screw  would make a change on the fuel pressure going to the throttle bodies; either up or down, depending on the direction the tab was moved.