 Early or late 1974 2.0L, Which vacuum hose diagram? |
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| boxsterfan |
 Oct 22 2013, 12:10 PM
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#1
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914's are kewl  Group: Members Posts: 1,776 Joined: 6-June 03 From: San Ramon, CA Member No.: 791 Region Association: Northern California  |
on mY 1974 2.0L (VIN 4742905987) does it follow the early or late vacuum hose diagram?
Early: https://bowlsby.net/914/Classic/zTN_FI_Hose...3-Early1974.jpg Late: https://bowlsby.net/914/Classic/zTN_FI_Hose..._Late1974_A.jpg On my car, the hose labeled #4 in the "late" drawing" coming off of the distributor vacuum is not connected (has a bolt in it) and also does not appear to have an available connection back to the airbox anways. Unless I just need to look closer? So, which drawing should I follow? |
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| Bob L. |
Oct 22 2013, 12:49 PM
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#2
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Senior Member Group: Members Posts: 847 Joined: 7-August 11 From: Austin TX Member No.: 13,411 Region Association: Southwest Region |
Do you mean hose #10 attached to the Vacuum advance canister(#4 in the drawing)?
It is supposed to be on the can but open to air on the other end. Just tuck it under the plenum. |
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| boxsterfan |
Oct 22 2013, 01:05 PM
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#3
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914's are kewl Group: Members Posts: 1,776 Joined: 6-June 03 From: San Ramon, CA Member No.: 791 Region Association: Northern California |
QUOTE(Bob L. @ Oct 22 2013, 11:49 AM)  Do you mean hose #10 attached to the Vacuum advance canister(#4 in the drawing)? It is supposed to be on the can but open to air on the other end. Just tuck it under the plenum. Oh yes, it would be hose #10 connected to vacuum advance (#4). |
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| boxsterfan |
Oct 22 2013, 07:30 PM
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#4
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914's are kewl Group: Members Posts: 1,776 Joined: 6-June 03 From: San Ramon, CA Member No.: 791 Region Association: Northern California |
Sorry to follow up on this, but I am stillunclear if I should follow the "early" or "late" diagram? VIN is 4742905987
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| JeffBowlsby |
Oct 22 2013, 08:54 PM
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#5
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914 Wiring Harnesses Group: Members Posts: 8,506 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None 
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Probably early but you need to determine if your charcoal canister is by the fuel tank or in the engine bay, and if your throttle body has one or two ports. Those will decide it for you.
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| Dave_Darling |
Oct 22 2013, 10:04 PM
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#6
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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If the throttle body has two ports, hook up the two hoses from the throttle body. If it only has one hose, leave the vacuum advance hose hooked up to nothing at all.
--DD |
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| boxsterfan |
Oct 22 2013, 11:41 PM
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#7
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914's are kewl Group: Members Posts: 1,776 Joined: 6-June 03 From: San Ramon, CA Member No.: 791 Region Association: Northern California |
QUOTE(Dave_Darling @ Oct 22 2013, 09:04 PM) If the throttle body has two ports, hook up the two hoses from the throttle body. If it only has one hose, leave the vacuum advance hose hooked up to nothing at all. --DD Thanks. My charcoal canister is in the front. I'll double check the throttle body in the morning. I need to check all of my hoses this weekend to be sure that all of them are hooked up to the right spots. Even looking at the early diagrams my hoses don't see m hooked up to quite the right spots. (IMG:style_emoticons/default/smash.gif) |
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