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Discussion Starter #1
Hi, VMF'rs,

I admit to being a newbie on my 100% stock '66 Hardtop 289 C-code PS/AT/AC plus Thermactor, but...

I was tracing the Thermactor system out with the thought of removing it entirely. I purchased the car in Sept '00 from a gentleman in Vista, Ca and shipped it back to Texas. As I don't foresee needing the TE, I'm looking forward to making some room in the CROWDED engine compartment, saving the TE components, of course!

Question: currently, ALL of the air supply from the TE pump goes into the anti-backfire valve (ABV). Then, all of the output of the ABV goes to the left & right exhaust manifolds, with the ABV having nothing to do with the intake manifold/carb spacer. This is not the way all the manuals I've read show it should be. The pump outlet should tee off to both L&R exhaust manifolds with an ADDITIONAL line also going to the ABV. Output from the ABV should be a line tee'ing into the PCV re-circ line which goes back into the intake manifold/carb spacer.

I dont know how or if my current setup works at all! When running the TE pump does pull a vacuum so some air is going somewhere. I just cant understand where it is going since all the pump output goes directly to the ABV input. And as the ABV is only supposed to open when the intake manifold sense line tells it to, I would think that there would rarely be a time when ABV is open.

Thanks in advance for all your help. These boards and the folks who contribute are a great asset!

Scott
 

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Don't have the time to completely go through your note (been a long week and just got back from the Portland area) but wanted to respond since no one else did. The first thing that comes to mind after quickly scanning your note is that you state that all the manuals describe..... Do you realize that there were tow different styles of Thermator systems? Quick question... how many of the large hoses are connected you your back fire valve (alot easier than using the date of production to figure out the same)

Later

Jeff Speegle
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Jeff,

Concerning the Thermactor components, they are identical to what's shown in Ford's shop manual. The connection paths are NOT! Did the two different production systems have different parts?

My anti-backfire valve has 2 large hoses go into it. Also has a smaller ID hose to the back of the air cleaner and sense line tubing back to the carb.

Thanks,

Scott
 

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Sorry don't buy shop manuals ;)

In 66 there was the "intake manifold type" and another routing and parts varied between the two'

I'll reread the original post and respond now that I'm awake

Jeff Speegle
MCA Shelby Gold Card

http://www.geocities.com/MotorCity/6473
Mustang & Shelby research, documentation

http://albums.photopoint.com/j/View?u=1609818&a=12284202&p=44925357&Sequence=7&res=high.jpg
 

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Not sure I can explain how everything works (got bug boks around here that do that but from what you provided you have the intake type of the Theramcctor system put on ealy 66 Mustangs delivered in California

1. Your pump should have one intake and two discharge hoses

2, The center connection should travel towards the reaar of the engine and connect to a "Y" that connects with hoses going to the passenger side head and to the back fire valve (one of the large connections - one on the passenger side)

3. The discharge closest to the drivers side supplies air to the drivers side head

4. The second connection to the back fire valve travels forward to the block that should be placed inline between the PVC and carb spacer (similar to the hot idle conpensator installed on AC equipped cars of the period

Hope this helpws. If a diagram of eash system would help I can help out (they are a bit small)

Jeff Speegle
MCA Shelby Gold Card

http://www.geocities.com/MotorCity/6473
Mustang & Shelby research, documentation

http://albums.photopoint.com/j/View?u=1609818&a=12284202&p=44925357&Sequence=7&res=high.jpg
 
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