Author Topic: Two Different Smog Pumps  (Read 310 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