Motocraft 2150 Vacuum - JeepForum.com
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Unread 07-18-2011, 10:34 AM   #1
heyitslou
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1987 YJ Wrangler 
 
Join Date: May 2011
Location: Bristol, RI
Posts: 59
Motocraft 2150 Vacuum

Help All, I got rid of the Carter and picked up the Motocraft 2150 and I wanted to make sure I have all of the vacuum lines hooked up right. I have the vacuum in front of the throttle linkage drivers side hooked to the canister under the windshield washer resevoire I have the PCV going to the rear vacuum behind the throttle linkage drivers side I have the choke pull off going to the rear lower center vacuum and the distributor going to the vacuum on the passenger side just in front of the choke coil. Not sure now that I've nuttered if I should T into the rear center vacuum that the choke pull off is going to?

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Unread 07-18-2011, 10:49 AM   #2
4.7stroker
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1988 YJ Wrangler 
 
Join Date: Apr 2007
Location: Rio Rancho NM
Posts: 4,299
Your distributor advance should go to Manifold vacuum. Manifold vacuum is the one where you have full engine vacuum at idle and ported vacuum is where you have progressive vacuum the more you open the throttle.
You will need a vacuum gauge and timing light to tune your motor so make sure you have them handy.

Dwayne
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Unread 07-18-2011, 11:09 AM   #3
heyitslou
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1987 YJ Wrangler 
 
Join Date: May 2011
Location: Bristol, RI
Posts: 59
I need to "T" into the rear center vacuum that the choke pull off is going to then because that's where I have constant vacuum the vacuum in front of the choke does not provide full vacuum at idle.
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Unread 07-18-2011, 04:35 PM   #4
heyitslou
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1987 YJ Wrangler 
 
Join Date: May 2011
Location: Bristol, RI
Posts: 59
Do I need any of the vacuum lines running to the canister underneath the windshield washer reservoir?
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Unread 09-01-2011, 11:25 AM   #5
hemidriver
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1988 YJ Wrangler 
 
Join Date: Jun 2011
Location: charlotte, nc
Posts: 36
Quote:
Originally Posted by heyitslou View Post
Do I need any of the vacuum lines running to the canister underneath the windshield washer reservoir?
Good question. I don't know the answer either
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Unread 09-01-2011, 11:48 AM   #6
vadslram
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1990 YJ Wrangler 
 
Join Date: Jan 2006
Location: VA Beach
Posts: 4,877
You should have two lines running to the cannister. One full time vacum and the other through a thermosister then to the canister. Full time will be like a 5/8" hose and that sucks the vapors. The thermo one is like1/4" and that opens the valve for the bigger line. It is supposed to only open up the canister purge (big hose) line once the engine reaches operating temperature. If you don't have the little hose hooked up you will never pulll the vapors out and might as well just cap the line and chuck the canister. If you run the second line directly you are going to have cold idle problems because it will always be pulling in extra air through the canister.
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