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what are these?

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Old Oct 29, 2010 | 04:11 PM
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77trailerspecial
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what are these?
no vacuum going to my egr valve so maybe replacing these parts will help?? i know one is check valve i think,but i cannot identify other


 
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Old Oct 29, 2010 | 04:14 PM
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failed to mention my truck is 1977 f150 with 400 engine all stock
 
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Old Oct 29, 2010 | 04:53 PM
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D24x4
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The top photo is the vacuum amplifier. Not sure about the bottom photo - is it located at the back of the carb, manifold?

Mark
 
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Old Oct 29, 2010 | 05:14 PM
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The bottom one they call a vacuum motor
 
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Old Oct 29, 2010 | 05:18 PM
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anyone give me a part number ,and any idea what and how they control vacuum or whatever it is they do? thanks
 
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Old Oct 29, 2010 | 05:20 PM
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Originally Posted by D24x4
The top photo is the vacuum amplifier. Not sure about the bottom photo - is it located at the back of the carb, manifold?

Mark

yep both toward back of carb
 
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Old Oct 29, 2010 | 05:58 PM
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It looks like the EGR vacuum load control valve - does it have a nipple on the bottom? I think these are both obsolete.

Mark
 
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Old Oct 29, 2010 | 09:24 PM
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obsolete? that figures,guess ill have to keep my eyes on ebay..
 
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