 Throttle body question |
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| Strudelwagon |
 Jun 22 2009, 09:13 AM
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#1
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Member  Group: Members Posts: 411 Joined: 11-October 08 From: interior, British Columbia Member No.: 9,633 Region Association: Canada  |
Hi,
I have a 74 2.0 FI that some of the emission bits have been removed. While gathering the missing bits I noticed that the schematics for the vacuum hoses show that the vacuum ports on the distributer hook up to the ports on the T-body. Only one problem..I only have 1 vacuum port on the T-body and 2 on the distributor. anyone know why this is? Thanks SW |
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| SLITS |
Jun 22 2009, 11:33 AM
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
Sure .... The '73 2.0L TB had ports for vacuum advance / retard. Between '73 & '74, the engineers decided that vacuum advance was not necessary so the eliminated one vac port on the TB. While both sides of the vac can on the dizzy had hoses connected to it, only one (vac retard) was actually hooked to the TB. Both units carry the same part number ..... 039 133 067
Dates are approximate as I doubt the factory doesn't have documentation on when the change occured. Images if desired, but they're gonna cost ya!!! |
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| Derek Seymour |
Jun 22 2009, 11:58 AM
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#3
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Member Group: Members Posts: 394 Joined: 10-March 09 From: Yucaipa Member No.: 10,151 Region Association: Southern California |
If your EGR system was removed then you "should" have a open port on the throttle body that points in the direction of the passenger side firewall. Normally this was used as the vacuum advance for the EGR valve. You can attach the distibutor advance (smaller black hose) to this port. If for some reason that port is missing from the throttle body and you only have the retard port that points straight back at the rear firewall then you can just leave the advance alone.
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Posts in this topic
Strudelwagon Throttle body question Jun 22 2009, 09:13 AM
Dr. Roger there's two types of vacuum. above the carb... Jun 22 2009, 09:32 AM kwales One of the dual hose distributors has a hose to no... Jun 22 2009, 09:54 AM
Strudelwagon Thanks Guys,
I kinda figured it was a odd setup to... Jun 22 2009, 03:03 PM |
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