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  #1 (permalink)  
Old 06-25-2009, 07:36 PM
gtuttle gtuttle is offline
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vacuum mapping for 74' f100 302

almost finished with rebuild install. I marked all vacuum lines to where they would go but it has been so long that the markings have disappeared. I am going fron 2 barrel carb to a 4 barrel carb too.
Thanks
Garry
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Old 06-25-2009, 10:15 PM
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murph77 murph77 is offline
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You might be able to figure this one out. I should say, you might have to... sorry.
I just haven't seen any responses to this kind of "vacuum map" question here.
Count up how many vacuum sources you have, manifold and carb.
Match those up with how many components need a vacuum source.
Eg., vacuum advance, pwr brakes, wipers, etc.
Unless you can find a diagram somewhere, you can probably logically figure this out.
Might be a good time to invest in a vacuum gauge too, if you haven't already.

Good luck,
Murph.
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Old 06-26-2009, 07:04 AM
gtuttle gtuttle is offline
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what do you think if I took some pixs & placed them here & see if anyone has seen this type of set up before?
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Old 06-26-2009, 08:42 AM
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Sure thing, we can take a look at that. Here is a general diagram you can use for the 2-barrel setup. It's not complete but can at least get you started. A '74 probably won't have the smog pump. Which 4-barrel are you going with?

Click the image to open in full size.
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Old 06-26-2009, 10:35 AM
gtuttle gtuttle is offline
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how can I copy pics onto this site, I tried & it wnats to take me to a http site to get them from.
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Old 06-26-2009, 11:04 AM
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To post pics you use the code that has [IMG] in front and behind it, from where ever you have the pic loaded too. Just insert the code for the pics when your typing your reply and the pics will show up.

EDIT: Another easy thing to do is create a gallery on here with your pics and then post them that way using the FORUM CODES for each pic. There will be a link in blue that says FORUM CODES below each pic and you just copy and paste that code that pops up into your reply.

EDIT #2:How to post pics from your (or anyone's) gallery.
Click the image to open in full size.
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Old 06-26-2009, 11:10 AM
gtuttle gtuttle is offline
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pics

[IMG]C:\Documents and Settings\Admin\My Documents\My Pictures\Truck\vacuum_1.jpg[/IMG]
[IMG]C:\Documents and Settings\Admin\My Documents\My Pictures\Truck\vacuum_2.jpg[/IMG]
[IMG]C:\Documents and Settings\Admin\My Documents\My Pictures\Truck\vacuum_3.jpg[/IMG]
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Old 06-26-2009, 11:16 AM
gtuttle gtuttle is offline
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evidently I did something wrong, any thoughts?
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Old 06-26-2009, 12:28 PM
gtuttle gtuttle is offline
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Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.
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Old 06-26-2009, 12:34 PM
gtuttle gtuttle is offline
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I will try to expalin since the pics are not laoding.
Behind carb (Holly 4 barrel) a five port tree, two coming out the back (towards firewall) & two on the sides, & finally one on very top (which looks big).

Then I have a three port tree on top of the water inlet from heater core.

Then I have a two port tree that is on manifold (right next to the three port tree)

Then I have a two port on the vacuum on the distrubutor

Garry
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Old 06-26-2009, 01:16 PM
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Here you go gtuttle.
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.

There we go!
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Old 06-26-2009, 02:21 PM
gtuttle gtuttle is offline
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thanks what was I doing wrong? Need to learn so I will no tmake same mistake
thanks
G
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Old 06-26-2009, 02:30 PM
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I don't know what went wrong? They wouldn't post for me either when I tried to post them from your gallery, so I just saved them to my computer then uploaded them to tinypic.com and posted them from there.

That motor must have came from a newer truck? Ours don't need all of those ports. I made a vacuum diagram off of the one that FMC posted earlier with the way mine is set up because I don't have power brakes, EGR, or Smog pump on mine. Here is my diagram made from his.
Click the image to open in full size.
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Old 06-26-2009, 04:48 PM
gtuttle gtuttle is offline
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thanks & thanks for posting my pics too
Garry
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Old 06-26-2009, 04:51 PM
gtuttle gtuttle is offline
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yes it came off a 74' f100, 302. The motor I replaced the old one is a 302 too & it came off a 70? something truck.
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Old 06-26-2009, 04:51 PM
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1980, 2barrel, 302, 74, 75, barrel, bbl, carb, diagram, f100, ford, hoses, lines, truck, vacum, vacuum

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