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#1
10-11-2009, 11:28 AM
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What is this called???
Hey Fellow Pontiacers....
What is the official name of this thing in the picture that has the green cover? I have also seen them with black covers. What is it used for? And better yet, does anyone have one??? Thanks in advance!!
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John R. Zerucha 1968 GTO RA II Convertible Sorry..The race car is Buick Powered 70 Skylark @2800 lbs 8.78 @ 153 mph 535 Stage 4 2850 lbs 8.97 @ 149 mph 523 Stage 4 9.36 @ 143 mph 464 Stage 2 9.77 @ 135 mph 464 Stage 1 88 Hawk @2355 lbs 8.06 @ 167 mph 535 Stage 4 7.90 @ 171 mph 572 Stage 4 |
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#2
10-11-2009, 12:04 PM
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I think it is a solenoid that restricts vacume advance. I'm not really sure the application, I'm at home with NO reference material. If no one else chimes in here, I'll let you know tomorrow.
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Paul FAST Automotive -The Pontiac restoration shop, not the fuel injection guys! I had the name first. My site... needs updated- www.fastrestorations.com 68 GTO's (RA II, RA I, HO, convert, Pro Street, Racecar, etc.), 2 69 GTO Judges, 70 GTO racecar -10.77 @ 124mph, 68 Tempest survivor, 3 03 Aztecs! |
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#3
10-11-2009, 12:14 PM
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Yup...looks like part of the dual vacuum advance system found on some 68/69 GTOs...Along with the TVS that is at front of Intake manifold. It was used to advance timing when temps got up and retard it when temp went back to normal (to somehow reduce emissions)..Didn't last too long, and I have seen parts of the system sold on ebay, so not that easy to find.
Here's one for sale right now: http://cgi.ebay.com/ebaymotors/68-69...41410006r36468
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1969 GTO 400-4speed, H/T 1969 GTO 400-RAIII-4speed, Convertible 1969 Grand Prix SJ |
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#4
10-11-2009, 03:31 PM
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I believe it is called a vacuum advance valve. I have seen some of the vendors that carried it at one time in black so you should be able to find one. I have seen statements that some of the early 69's used it, but it did not last long. I am unsure of its application in 68, sorry.
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My Wife: "I thought I married a sophisticated business man, but what I actually got was a redneck fisherman with muscle cars." Some people know all of their rights, but none of their obligations. |
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#5
10-11-2009, 05:10 PM
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Yep...
Chris gad them repopped, but not sure if they are still available. I had one and sold it...was around $100, I believe. Ron
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"The great obstacle to discovery is not ignorance...but the illusion of knowledge." Daniel J. Boorstein "Gas is STILL your cheapest thrill!" Your opinion of me is none of my business. |
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#6
10-11-2009, 06:23 PM
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I believe Ames still sell them NOS.Part N219HJF. Never seen a green one.
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#7
10-11-2009, 06:25 PM
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Manual trans applications
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#8
10-11-2009, 07:07 PM
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I would find them on alot of Oldsmobiles. I would get them out of the salvage yard clean and test them and sell on ebay. Used to get about $75 for them. That was before Ebay changed.
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#9
10-11-2009, 08:48 PM
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Quote:
__________________
Paul FAST Automotive -The Pontiac restoration shop, not the fuel injection guys! I had the name first. My site... needs updated- www.fastrestorations.com 68 GTO's (RA II, RA I, HO, convert, Pro Street, Racecar, etc.), 2 69 GTO Judges, 70 GTO racecar -10.77 @ 124mph, 68 Tempest survivor, 3 03 Aztecs! |
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#10
10-11-2009, 11:26 PM
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Yes, they are part of the dual advance/retard system on 68 GTOs with manual transmissions. I have them on all of my cars.
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'68 GTO 4-spd Hardtop (11) '68 GTO Convertible AT (1) '70 LeMans Sport Land of Lakes Muscle Car Classic Facebook Event Facebook Wall (Kurt Smith,Minneapolis) |
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#11
10-12-2009, 12:22 AM
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Quote:
__________________
Paul FAST Automotive -The Pontiac restoration shop, not the fuel injection guys! I had the name first. My site... needs updated- www.fastrestorations.com 68 GTO's (RA II, RA I, HO, convert, Pro Street, Racecar, etc.), 2 69 GTO Judges, 70 GTO racecar -10.77 @ 124mph, 68 Tempest survivor, 3 03 Aztecs! |
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#12
10-12-2009, 01:51 AM
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Quote:
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-Jeremy 1968 GTO 4-spd convertible, console, factory gauges, hidden headlights, 3.90:1 posi, AM/FM radio. 1962 Catalina convertible, Starlight black w maroon interior & white top. |
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#13
10-12-2009, 01:54 PM
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Hi,
My 68 with MT has one. I used a hand mighty vac pump to test mine. I've attached the vacuum hose diagram and a pic. Mike
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1968 Pontiac GTO 462CID, 4-Speed Manual, 3.55 rear. Aleutian Blue exterior, 219 Teal Blue interior. Chrome bumper, AM & 8-Track and Rally II Wheels |
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#14
10-12-2009, 04:04 PM
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Vacuum Advance Control Valve. Used on M.T. 400's in '68/'69.
All the same EXCEPT... Ram Air II which had a separate pt.no. (green cap, diff. spring). See... http://forums.maxperformanceinc.com/...d.php?t=613337 I don't believe the RAII version is being reproduced. Speaking of this part, I see that PY offers the BLACK CAP only on EBAY for $10 but shipping is $14.99. Is this the only way to get the cap from host.. on EBAY? Shipping for such a small, light part should be less than $5.
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John '68 Firebird Ram Air 4-spd Conv. John 14:6 Semper Fi 
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#15
10-12-2009, 05:12 PM
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OK... you guys are good!! Thanks for the help and now I need to find out if they are truly different for a RA II.
Thanks Again!!!
__________________
John R. Zerucha 1968 GTO RA II Convertible Sorry..The race car is Buick Powered 70 Skylark @2800 lbs 8.78 @ 153 mph 535 Stage 4 2850 lbs 8.97 @ 149 mph 523 Stage 4 9.36 @ 143 mph 464 Stage 2 9.77 @ 135 mph 464 Stage 1 88 Hawk @2355 lbs 8.06 @ 167 mph 535 Stage 4 7.90 @ 171 mph 572 Stage 4 |
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#16
10-12-2009, 05:43 PM
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So I assume it just needs to hold vacuum up to a certain point?
I have a MT and originally manual brakes, so I hope it isn't different now that I am switching to power discs. Thanks for posting that diagram runningbwdog.
__________________
-Jeremy 1968 GTO 4-spd convertible, console, factory gauges, hidden headlights, 3.90:1 posi, AM/FM radio. 1962 Catalina convertible, Starlight black w maroon interior & white top. |
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#17
10-12-2009, 06:37 PM
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Manual vs power brake shouldn't matter.
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#18
10-13-2009, 01:07 PM
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I just looked at mine and the black cap is missing. Does anybody have an old junk one with a good cap?
__________________
-Jeremy 1968 GTO 4-spd convertible, console, factory gauges, hidden headlights, 3.90:1 posi, AM/FM radio. 1962 Catalina convertible, Starlight black w maroon interior & white top. |
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#19
10-26-2009, 10:52 PM
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Sorting through years of parts...
Question: On the Distributor Vacuum Control Valve, how many ports (nipples) are there and where do they connect to? One on front, One on RH side, One on LH side? I believe I've seen variations... some have only the (1) on front & (1) on RH side while others have (3) vacuum tubes. Since these were only used on M.T. vehicles ('68/'69), I wouldn't think there would be a difference (other than the GREEN type used only on RAII cars). Anyone have photos of original units? Is the one being sold by PY a repro or NOS/GM? I see they have the BLACK caps (RE) for $10ea but shipping is $15... odd. Thanks!
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John '68 Firebird Ram Air 4-spd Conv. John 14:6 Semper Fi
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#20
10-28-2009, 10:30 AM
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Hi,
Here are pics of my original one off my MT 68 GTO. Mike
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1968 Pontiac GTO 462CID, 4-Speed Manual, 3.55 rear. Aleutian Blue exterior, 219 Teal Blue interior. Chrome bumper, AM & 8-Track and Rally II Wheels |
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