ConcoursMustang Forums
1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year => 1968 Shelby => Topic started by: Coralsnake on October 17, 2014, 11:22:39 PM
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I have found two different valves used on 1968 Shelbys
The first was a white check valve with a plain top. It was painted black with the booster.
The second was used later in the year ( includes all KRs ) it was black plastic and has the word "MANIFOLD" embossed on it.
Can anyone confirm/deny these findings?
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Got any pictures ;)
Where on the valve is the word MANIFOLD?
Will look through my pictures at the NJ cars
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Like this?
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Can anyone confirm/deny these findings?
Yes. One with manifold came into play about mid Feb 68. Basic Mustang stuff
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Like this?
That car looks familiar ;D
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Wasn't there a service campaign replacement?
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Wasn't there a service campaign replacement?
Don't recall on in 68 but there was one for Midland boosters in 67 (there were two campaigns for that issue)
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Wasn't there a service campaign replacement?
That was for the smooth style check valve. They were marked with a red paint daub because the improved ones were identical to the inferior ones so the improved replacements were marked with red. The manifold marked ones were a later evolution of the midland check valve. As Tim says seems to be from about Feb 68 on.
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They were not just NJ, pulled them off SJ cars too
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Thanks for the schooling guys.
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Thanks for the schooling guys.
Marty,I am not to big to admit Tim schooled me on this later check valve aspect a few years back and my observation since confirmed the evolution so you are not alone. We all learn from each other. :D
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The second was used later in the year ( includes all KRs ) it was black plastic and has the word "MANIFOLD" embossed on it.
Can anyone confirm/deny these findings?
Did find the same two valves mentioned. - The ALL was impossible for me to prove in pictures but will accept that they didn't put different valves (on the boosters) on different applications during the second half of the production year. And also that a fair amount of the ones we see even in unrestored cars may have been replaced like any parts we find. Did find a number of later cars with the valve that matches the one in the picture you posted - have you noticed a difference in where the word in in comparison to the nipples. Have one that is 180 degrees off from the others it appears.
(http://www.concoursmustang.com/forum/gallery/2/6-181014102857.jpeg)
Bottom line is that yes I've seen those valves and you guys have spent allot more time with cars built from that plant during that year.
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These pictures are from Tim Lea. I will let him comment on them
(http://www.thecoralsnake.com/FullSizeRender.jpg)
(http://www.thecoralsnake.com/FullSizeRender2.jpg)
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Must have been around this time.
Here are two survivors from my files....
(http://www.thecoralsnake.com/2280valve.JPG)
#2280 Manifold valve on KR
(http://www.thecoralsnake.com/2444valve.JPG)
#2444 White valve on GT500
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Those two from me are from 2 virgin KRs that just came into my shop yesterday. Note the cool flat rubber cap
Just to be clear its not a KR thing but Mustang thing. Because all KRs were built after Feb they would have the manifold
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I heard Bob Gaines once bought a whole car to get that flat rubber cap
;D
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Those two from me are from 2 virgin KRs that just came into my shop yesterday. Note the cool flat rubber cap
Just to be clear its not a KR thing but Mustang thing. Because all KRs were built after Feb they would have the manifold
Is the cool flat rubber cap a unique piece?
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Is the cool flat rubber cap a unique piece?
Unique,yes in so much that it only came from the OEM of the check valve that way . I have only found them on original check valves used or NOS . I have never found them on anything else . All others I have seen had some variation of a rounded end cap on them. Just my personal observations.
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Interesting. Don't know if the ID is correct but just came across some new flat rubber caps in my misc parts stash.
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The question I have is the side entry (Marty's) vs center entry (all others) on the check valves. :)
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The question I have is the side entry (Marty's) vs center entry (all others) on the check valves. :)
Not sure if I understand "center entry (all others)" ? The one in Marty's picture is typical for a later 68. Can you elaborate of show a picture?
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The design difference through both Marty and I off. If you zoom into the picture you can see what I am talking about. The vacuum nipple in the center of the valve and Marty's more on the side. Are all three of these styles going to be accepted? A little late tonight Bob?
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The design difference through both Marty and I off. If you zoom into the picture you can see what I am talking about. The vacuum nipple in the center of the valve and Marty's more on the side. Are all three of these styles going to be accepted? A little late tonight Bob?
Looks like the one Marty posted may be "bent" or changed shape over the years due to stress and heat pulling it at a slight panel rather than the 90 degree angle to the base the other ones have
Just looking at possibilities
As for being "accepted" the general focus on this site is more about what is correct and original rather than how each organization will handle an issue - except for discussions posted in those appropriate Club Judging sections ;)
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There were three cars with the identical valve. I think they shared their supplier. Thanks for your help everyone.
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There were three cars with the identical valve. I think they shared their supplier. Thanks for your help everyone.
Reply#11,12,13 have pictures of typical assemblyline check valves for later 68. The one in Reply #2 is not typical.
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Agreed. The slanted angle is not assembly line style
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Good to know we were not wrong in thinking something was not right with those check valves.
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Good to know we were not wrong in thinking something was not right with those check valves.
was that in the blue ac fastback kr?
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They certainly are not assembly line style, but it sounds like several people took some of the comments to mean the "manifold" valves were not used at all. As a judge, we have all had to stamp out those fires before....
;D
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Bought another used white check valve with flat end cap on Ebay yesterday.
paid $10 for it. They are still out there. A NOS one is available for $109.
Texas Swede
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It was not a question on the word manifold, it was the design of the check valve. There were 3 cars that had the non-typical check valves.
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.........There were 3 cars that had the non-typical check valves.
In the pictures? If not where are you referring to?
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It was not a question on the word manifold, it was the design of the check valve. There were 3 cars that had the non-typical check valves.
Which cars? I will contact owners and get pictures
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In the pictures? If not where are you referring to?
Jeff, Ron and I judged six 1968 KR500s at Savannah. Of the six three had this strange valve that I pictured above.
Tim, I know two of the three were the blue fastbacks I can't remember the third
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I don't want to get off topic but did 67's use the same? A simple answer will suffice and if not I'll start a new thread. ;)
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I don't want to get off topic but did 67's use the same? A simple answer will suffice and if not I'll start a new thread. ;)
Yes to the early version - in short simple answer. We can start that thread if we haven't already posted pictures of those in the past
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Yes to the early version - in short simple answer. We can start that thread if we haven't already posted pictures of those in the past
Didn't see any prior discussion or pictures so I started a new thread for 67's.
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Jeff, Ron and I judged six 1968 KR500s at Savannah. Of the six three had this strange valve that I pictured above.
Tim, I know two of the three were the blue fastbacks I can't remember the third
I'm getting pictures back from owners, so far 2 have side entry, 1 the 67/early 68 style. Trying to figure if side entry was from 68 model or "close" that was picked up somewhere.
Marty, I know 5, was #6 the green unrestored?
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Yes #6 was the green unrestored. I believe it had the early original style or a modern replacement.
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....... Marty, I know 5, was #6 the green unrestored?
The one we've seen a number of times (Scotts old one) ? If so its possible I've got a picture from those shows