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Old 10-17-2012, 04:08 PM   #29
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1983 34' Excella
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On a side note, my wife is complaining that I spend to much time on these forums when she's trying to talk to me. How do you fix that? Haha!
Send her a PM telling her to PM you.
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Old 10-17-2012, 04:17 PM   #30
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On a side note, my wife is complaining that I spend to much time on these forums when she's trying to talk to me. How do you fix that? Haha!
Improve your tuning-out skills... Fit her with a muffler... LOL, just kidding... thats what you do with an Ex-wife... or a soon to be...

Just explain that without all this knowledge she will need to help push it if it breaks down...
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Old 10-17-2012, 04:53 PM   #31
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I am interested to know if as far as you know your Quadrajet is the Original?

Some trivia...
I compared your carb number of 17080212 0964 CWP with the one I have.
I got mine on Ebay, and it is .....17080212 3044 CWP.



These numbers break down into this...
17080 = Carb built in the 1980's
Last 3 digits..
2= Federal 4 barrel carb
1= For Chevy
2= For an Automatic transmission

As you can see it is exactly the same carb number, the only difference is the 4 digit number in the middle which turns out to be the production date... Yours is 096th day of 1984(April 6th 1984)... and mine is 304th day of 1984.

I rebuilt my carb myself and have not fitted it yet....
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Old 10-17-2012, 05:16 PM   #32
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1981 31' Excella II
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Why is Arizona concerned with emmissions anyway. They population density is pretty low.

Perry
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Old 10-17-2012, 05:21 PM   #33
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The Phoenix Metro Area has a population of 4.1 million people and sits in a valley. Air quality is a very big issue here.
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Old 10-17-2012, 05:50 PM   #34
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It's most likely the original carb. I bought from my wifes grandparents and they were original owners. They saved every receipt since new.
The Phoenix area pollution is pretty bad! The city sits in a bowl type area with mountains trapping air movement. We are the 5th or 6th largest city in America if you count metropolitan area! We're also about 20 years behind in public transportation for such a large city.
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Old 10-17-2012, 09:11 PM   #35
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I rebuilt mine myself as well but yours looks spectacular, Keyair!
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Old 10-18-2012, 12:59 PM   #36
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I rebuilt mine myself as well but yours looks spectacular, Keyair!
Thanks, but the proof of the "spectacularness" will be how it runs....
This was my first Quad rebuild... SU's are easier!
I thought black would look cool on my planned Edelbrock manifold swap.


Here it is all together with the refinished Banks Airfilter..


FYI, a common issue with these is leaks...
These later models generally do not leak from the welch plugs in the bottom of the carb, but it is possible..
Here are mine...


Mine needed throttle plate bushings too.




I just found and read an article where it points out that the top plate is a common warpage place leading to air leaks..
The most common reason for the top plate warpage, is overtightening of the air filter center bolt, or the airfilter leveraging the carb thru the mounting bolt...
Now, the is no bigger of heavier airfilter system than the cast aluminum Banks top...
Add to that the posibility of contact between the filter and doghouse, and we could have double trouble... On my M/H there is/was a very clear imprint on the doghouse insulation from the filter... and my setup is taller than stock, so will have to be careful.



All of this can lead to odd running.
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Old 10-18-2012, 01:55 PM   #37
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yes, I've had to rebuild several carbs that were leaking from the Welch plugs. I use JB Weld to seal them up
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Old 11-03-2012, 03:41 AM   #38
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Any updates on your issue?
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Old 11-03-2012, 11:27 AM   #39
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FYI smaller is not better with air cleaners. If the element is smaller it means either less air or more dirt or both. A small restriction on the intake make HUGE reductions of HP and air into the engine.

Also bringing in fresh air that has not gone through the radiator will increase HP as well. Sometimes all those ugly hoses leading to the big ugly stock air cleaner HAVE A PURPOSE.

Perry
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Old 11-03-2012, 01:05 PM   #40
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We used to have a 1978 Chevy crewcab pickup ("Hal") that had a 454-V8 in it. If you haven't already fixed this problem, I suggest that you take your vehicle to "Phoenix Carburetor and Radiator Exchange" at 9120 N. 7th Street in Phoenix. They rebuilt Hal's carburetor several times in the 20-some years we owned him, and he always passed emissions.

If necessary, they'll tune the carb to pass emissions and then retune it after it passes all tests.

Also, they recommend rebuilding the existing carburetor instead of replacing with a rebuilt model from AutoZone, Pep Boys, etc.. This engine has been around for a long time; and there are a lot of carbs that look similar, but differ slightly, which makes them extremely difficult to tune to your engine.

Years and years ago, I had wasted a lot of time fiddling with carb problems, until someone steered me to them. And, it was easier (and cheaper) to just have them do the work; especially, since they guaranteed Hal would pass emissions.

Just a warning, this is a Phoenix landmark that dates back at least to 1980 (and probably back to the 50's). You won't find a spotlessly clean shop with an espresso machine in the waiting room. It's a small shop that all of the old timers know about, whose walls are lined with old carburetors and parts in cardboard boxes. I think the counter people are the owners, and everyone is covered in grease up to their elbows. However, this shop is fast, dependable, and busy.

==========

Note: You do NOT need catalytic converters. This is probably an idle adjustment, since Hal only got idle tests when we had him emissions tested.
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Old 11-13-2012, 06:03 PM   #41
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Update: finally got a couple hours to tinker. I've discovered the Diverter Valve is bad, it's stuck in the open position and applied vacuum doesn't close it. It's discontinued everywhere I've called so far. Plus, the TRC Solenoid Control Valve is broken and causing a vacuum leak. Also discontinued! I believe the diverter valve to be the main cause of the failing emissions.
To answer previous posts... The carb is rebuilt correctly, and I have used Phx carbs and Rods Carbs before. Both did good work.
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Old 11-13-2012, 06:18 PM   #42
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Update: finally got a couple hours to tinker. I've discovered the Diverter Valve is bad, it's stuck in the open position and applied vacuum doesn't close it. It's discontinued everywhere I've called so far. Plus, the TRC Solenoid Control Valve is broken and causing a vacuum leak. Also discontinued! I believe the diverter valve to be the main cause of the failing emissions.
To answer previous posts... The carb is rebuilt correctly, and I have used Phx carbs and Rods Carbs before. Both did good work.
Good that you are figuring this out!

If you had not seen it, there is an Emissions thread running over in the engines section that might help ya!
Here is how the smog pump, diverter and TRC valve should be set up.



FYI , my junkyard find smog pump diverter valve also is failed... applying vacuum does not do a thing..
I found that RockAuto lists one for a 1984 P30...
AIRTEX / WELLS Part # 7D1097, GM#17062646, or DV108 and list it at $151 or so.



The TRC valve I have works...
I apply 12v and it clicks and opens the valve, allowing vacuum to flow.
Let me know if you cannot find one, and I will see if I can find you a used one!
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