Author Topic: Two Different Smog Pumps  (Read 692 times)

2112

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Two Different Smog Pumps
« on: October 17, 2020, 08:12:51 PM »
Have two different smog pumps. Which is correct for the '67 GT500?

First;

2112

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Re: Two Different Smog Pumps
« Reply #1 on: October 17, 2020, 08:13:59 PM »
Second;


J_Speegle

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Re: Two Different Smog Pumps
« Reply #2 on: October 17, 2020, 09:52:42 PM »
Sorry - neither  :(   Others may have different opinions.

They could be modified to look something like originals but don't think that is what your asking.

Believe your looking for one with two ports on the back and each of those have the 90 degree elbows.

Maker of the lower pump is not one I've typically seen on a 67 San Jose Mustang/Shelby.  Believe it is a Saginaw provided pump

When you get there don't forget the air deflector over the valve ;)
« Last Edit: October 17, 2020, 09:56:36 PM by J_Speegle »
Jeff Speegle- Mustang & Shelby detail collector, ConcoursMustang.com babysitter :) and Judge

2112

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Re: Two Different Smog Pumps
« Reply #3 on: October 17, 2020, 11:27:30 PM »
Thanks Jeff,

Any one have a picture of the correct pump?

J_Speegle

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Re: Two Different Smog Pumps
« Reply #4 on: October 18, 2020, 04:40:17 AM »
Most of the hundreds of pictures I have are on the cars rather than spread out on a table.  So rather than taking the time to do that will post some pictures I collected from other postings and such.  Should be easy pump to find. Nothing really special, used on 289's for example.

This one still has the small block filter bracket attached. All pretty and clean. Finishes and some of the smaller details are not all correct IMHO







Sorry - this is the way the owner took the picture with the valve in the way as it would be located on the car. Does show details, elblows and such



Hope these help
Jeff Speegle- Mustang & Shelby detail collector, ConcoursMustang.com babysitter :) and Judge

2112

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Re: Two Different Smog Pumps
« Reply #5 on: October 18, 2020, 11:32:18 AM »
In that last picture, it looks like the third elbow boss was either not drilled out or has a freeze plug pressed in.

2112

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Re: Two Different Smog Pumps
« Reply #6 on: October 18, 2020, 04:36:42 PM »
Pictures to see where the connections were made.

Seems a lot of the Thermactor cars had the filter canister kind of free-hanging, only supported by the hoses rather than being supported by a clamp that is screwed to the shock tower, no?

J_Speegle

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Re: Two Different Smog Pumps
« Reply #7 on: October 18, 2020, 04:44:24 PM »
In that last picture, it looks like the third elbow boss was either not drilled out or has a freeze plug pressed in.

Correct

Seems a lot of the Thermactor cars had the filter canister kind of free-hanging, only supported by the hoses rather than being supported by a clamp that is screwed to the shock tower, no?

Believe it has to do with when the car was built at San Jose. This was a 390 Mustang related detail
Jeff Speegle- Mustang & Shelby detail collector, ConcoursMustang.com babysitter :) and Judge

J_Speegle

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Re: Two Different Smog Pumps
« Reply #8 on: October 18, 2020, 10:20:21 PM »
In that last picture, it looks like the third elbow boss was either not drilled out or has a freeze plug pressed in.

Found one in the garage (well a few of different sorts) so grabbed a few pictures for you

The unused port is not drilled out - casting still there. Rear plate on this example needs to be cleaned, painted and machined surfaces returned then oiled




Look at the front of the pump




Look at the date codes - casting and assembly In this case this was made for an early 1966 289





Not to be critical but it needs to be mentioned not all of the details on that finished restored example will be correct for a car like yours so do your home work - don't just follow :)  And we all learn more (or at least should) as time passes
« Last Edit: October 19, 2020, 04:24:24 AM by J_Speegle »
Jeff Speegle- Mustang & Shelby detail collector, ConcoursMustang.com babysitter :) and Judge

2112

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Re: Two Different Smog Pumps
« Reply #9 on: October 19, 2020, 02:36:33 AM »
Thank you for the detailed pictures

68krrrr

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Current
1967 GT500 #1724
Nightmist Blue /Parchment
Porsche 911 Turbo 2007 Highly modified

Previously owned
1968 GT500KR #03528
1968 GT/CS

"Fly low & avoid the radar"
Thanks Adam

J_Speegle

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Re: Two Different Smog Pumps
« Reply #11 on: October 21, 2020, 01:00:57 AM »
looks like the one for sale on Ebay
https://www.ebay.com/itm/1966-1967-Ford-Mustang-Shelby-Fairlane-Cougar-390-427-428-THERMACTOR-SMOG-PUMP/154152424980?epid=13022157031&hash=item23e4335614:g:ajsAAOSwlSdfMdhY


That is the three port version like in the original post. The Shelby application is a mix of parts from many different applications and the three port is not the typical or planned for the 67 GT500  application. Some parts were included with each car to be installed at SA while others were changed (on paper) prior to the cars build at San Jose as can be found documented on the add/delete sheets. The guides for each order group.

Added: There are original examples from San Jose 289 examples and possibly a few of these pumps were included with Shelbys, where the three 90 degree fitting pumps were supplier where the third port was capped with a rubber cap and a retaining clamp.Have not graphed the examples to figure out when, during the production year, this took place, yet.


« Last Edit: October 21, 2020, 06:14:22 PM by J_Speegle »
Jeff Speegle- Mustang & Shelby detail collector, ConcoursMustang.com babysitter :) and Judge

68krrrr

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Re: Two Different Smog Pumps
« Reply #12 on: October 21, 2020, 01:19:00 AM »
Ah ha & glad i'm a non smog car actually & for some reason i like the look of a smog system on 68's but not so much on 67's for some reason.
Current
1967 GT500 #1724
Nightmist Blue /Parchment
Porsche 911 Turbo 2007 Highly modified

Previously owned
1968 GT500KR #03528
1968 GT/CS

"Fly low & avoid the radar"
Thanks Adam

Bob Gaines

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shelbymann1970

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Re: Two Different Smog Pumps
« Reply #14 on: October 21, 2020, 12:49:23 PM »
Sorry - neither  :(   Others may have different opinions.

They could be modified to look something like originals but don't think that is what your asking.

Believe your looking for one with two ports on the back and each of those have the 90 degree elbows.

Maker of the lower pump is not one I've typically seen on a 67 San Jose Mustang/Shelby.  Believe it is a Saginaw provided pump

When you get there don't forget the air deflector over the valve ;)
Back in late 80s early 90s I bought a Calif 67 FB with a 390 4 speed in it. It passed Calif emissions before it came east. I pulled the system off the car and sold it to a 67 GT500 owner in Az(Calif smog car) through Hemmings. I still wonder what was different on the Mustang one and the Shelby one. The long tube(diff intakes)? Thanks. Gary
Shelby owner since 1984
SAAC member since 1991