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#81
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There is a small wire/lever (?) that goes from the pump piston lever to an area under a small cover (see photos). What does this do? Also, do I have it installed correctly?
Also, at the base of the vent tube in these photos is a triangular pressed-on bracket. Beneath the bracket is what appears to be a metering screw (like the idle mix screws). What does this do? I turned it in all the way and then backed out 2 full turns. I don't find this on my other carbs, but it is present in the photos from Unruhjohnny in a previous post in this thread. Very mysterious. The last photo shows the cover installed. Last edited by Jimbobeast; 10-31-2021 at 09:18 PM. |
#82
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looks great from here.
in your second last post you had three "extra" parts; two of which are for a part yoyr carb doesn't have, the third (large foamy) part is put in the cavity in the throttlebody, presumably to soak up any fuel leaking from the secobdary system. "Ultimate Warrior" huh(?); He was one of the WWF good guys right?
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1970 Formula 400 Carousel Red paint on Black standard interior A no-engine, no-transmission, no-wheel option car. Quite likely one of few '70 Muncie three speed Formula 400's left. 1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing) 2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs) |
#83
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1970 Pontiac uses a little foam filter for the clean air port on valve instead of a hose to the aircleaner.
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#84
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Quote:
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#85
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I believe that middle rubber part goes under that vent spring.
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#86
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Thanks.
I'm guessing that the adjustable main well air bleed screw as I set it in the "two turns back from full in" is not going to significantly affect the function of the carb, and the vent spring was replaced in original position so that is also a non issue. The left over round rubber part does resemble the rubber part under the vent spring except that the replacement has a hole in the center. Kenth, thanks for the clarification on the TCS system. I've never seen the little foam vent. Do any still exist? Would a missing foam be a point deduction in Concours judging? Sorry for mis-spelling Unruhjonny. I guess everyone is an "ultimate warrior". I did not notice that. |
#87
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the available vent pieces I have seen are a squared off piece of foam.
I recently found one of these still hooked up, and it had a different breather piece of sorts: https://forums.maxperformanceinc.com...d.php?t=853538
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1970 Formula 400 Carousel Red paint on Black standard interior A no-engine, no-transmission, no-wheel option car. Quite likely one of few '70 Muncie three speed Formula 400's left. 1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing) 2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs) |
#88
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Also, Kenth, where are you getting all these diagrams? |
#89
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I believe that most of the images Kenth is sharing are from a factory service manual.
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1970 Formula 400 Carousel Red paint on Black standard interior A no-engine, no-transmission, no-wheel option car. Quite likely one of few '70 Muncie three speed Formula 400's left. 1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing) 2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs) |
#90
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Wow, that is high tech. I believe I can reproduce that foam. I'll open an EBay store and sell them for $49.99 each - "your concours restoration will not be correct without one"
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#91
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Here are some photos of the newly refurbished carb nestled happily atop the aluminum RAIV intake. I recall someone mentioning that the brake vacuum line was secured by a clip to the (?) throttle bracket? Anyone have a photo of said clip?
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#92
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Another bothersome problem - the idle solenoid does not line up squarely with the throttle linkage. Where have I gone wrong?
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#93
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Also, I have a bunch of TCS solenoids left over that I will never use. If anyone wants them, they can be had for postage only. Just my way of saying thanks to the forum for all the help.
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#94
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There is some adjustment to the idle solenoid, but, I found mine didn't hit squarely either. It can be adjusted to function though.
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