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Marcel Aircooled |
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#1
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Newbie ![]() Group: Members Posts: 41 Joined: 28-April 24 From: The Netherlands Member No.: 28,087 Region Association: Europe ![]() |
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GregAmy |
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#2
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,311 Joined: 22-February 13 From: Middletown CT Member No.: 15,565 Region Association: North East States ![]() ![]() |
Dunno what its original purpose was but it's bleeding engine air cooling, so I put a plug on mine.
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BillC |
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#3
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Senior Member ![]() ![]() ![]() Group: Members Posts: 549 Joined: 24-April 15 From: Silver Spring, MD Member No.: 18,667 Region Association: MidAtlantic Region ![]() ![]() |
According to my copy of the '73 2.0 vacuum hose routing guide, that port provides pressurized (ish) air to the charcoal canister. The other hose from the canister gets connected to the top of the air filter housing.
I don't remember my previous '73 1.7L having that port; I'm pretty sure the pressure side connected somewhere else (don't remember exactly). |
Marcel Aircooled |
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#4
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Newbie ![]() Group: Members Posts: 41 Joined: 28-April 24 From: The Netherlands Member No.: 28,087 Region Association: Europe ![]() |
According to my copy of the '73 2.0 vacuum hose routing guide, that port provides pressurized (ish) air to the charcoal canister. The other hose from the canister gets connected to the top of the air filter housing. I don't remember my previous '73 1.7L having that port; I'm pretty sure the pressure side connected somewhere else (don't remember exactly). I was told this before but, like I said in my first post, they are both connected. One is connected to the right side of the cooler; see red line in below picture ![]() The other one is connected to the air filter housing like you said ![]() So I still have the small pipe on the left side unused.. |
sportlicherFahrer |
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#5
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Nothing to see here. ![]() ![]() ![]() Group: Members Posts: 1,088 Joined: 18-April 05 From: Tacoma, WA Member No.: 3,945 Region Association: Pacific Northwest ![]() ![]() |
The port on the driver's side tin is correct for a '73 MY 2.0 car's charcoal canister. The port on the fan housing was for the later cars that had the canister mounted near the battery. I don't recall the exact changeover, but I think it was about '74. You have tin and a housing from different years, so just cap the one not being used.
Edit: Another look at your hose routing suggests that your car(or at least the plastic tubes across the front of the engine) are for a 1.7. The 1.7 cars used the port by the battery as well. |
scallyk9 |
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#6
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Member ![]() ![]() Group: Members Posts: 323 Joined: 16-October 16 From: Port Orchard, WA, USA Member No.: 20,499 Region Association: Pacific Northwest ![]() ![]() |
The port on the driver's side tin is correct for a '73 MY car's charcoal canister. The port on the fan housing was for the later cars that had the canister mounted near the battery. I don't recall the exact changeover, but I think it was about '74. You have tin and a housing from different years, so just cap the one not being used. Correct. My 74 2.0L (built March 1974) has the charcoal cannister mounted with a strap to the back of the forward trunk wall and uses the port on the fan housing. |
Marcel Aircooled |
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#7
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Newbie ![]() Group: Members Posts: 41 Joined: 28-April 24 From: The Netherlands Member No.: 28,087 Region Association: Europe ![]() |
The port on the driver's side tin is correct for a '73 MY 2.0 car's charcoal canister. The port on the fan housing was for the later cars that had the canister mounted near the battery. I don't recall the exact changeover, but I think it was about '74. You have tin and a housing from different years, so just cap the one not being used. Edit: Another look at your hose routing suggests that your car(or at least the plastic tubes across the front of the engine) are for a 1.7. The 1.7 cars used the port by the battery as well. The car is a 73 with the canister in the front trunk and engine is 74 2.0 so I suspect you are right that some parts not match and I should just plug the port not used. Thanks for the quick help! |
Marcel Aircooled |
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#8
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Newbie ![]() Group: Members Posts: 41 Joined: 28-April 24 From: The Netherlands Member No.: 28,087 Region Association: Europe ![]() |
BTW any advise on what to use best to plug the port?
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sportlicherFahrer |
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#9
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Nothing to see here. ![]() ![]() ![]() Group: Members Posts: 1,088 Joined: 18-April 05 From: Tacoma, WA Member No.: 3,945 Region Association: Pacific Northwest ![]() ![]() |
A standard rubber or silicone vacuum port cap that fits should do fine. I think that port is close to 12mm or so.
Something like this. |
wonkipop |
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#10
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 4,408 Joined: 6-May 20 From: north antarctica Member No.: 24,231 Region Association: NineFourteenerVille ![]() ![]() |
The port on the driver's side tin is correct for a '73 MY car's charcoal canister. The port on the fan housing was for the later cars that had the canister mounted near the battery. I don't recall the exact changeover, but I think it was about '74. You have tin and a housing from different years, so just cap the one not being used. Correct. My 74 2.0L (built March 1974) has the charcoal cannister mounted with a strap to the back of the forward trunk wall and uses the port on the fan housing. thats pretty interesting @scallyk9 the changeover for the cans occurs during the start up of production of the 1.8s in nov 73. the first half of 74 2.0 production from aug to oct 73 would have that tube bleed in the tin and the second half of 2.0 production from about feb 74 on must follow what the 1.8s and 1.7s always had with the fan casting bleed tube. (IMG:style_emoticons/default/beerchug.gif) (IMG:style_emoticons/default/beerchug.gif) there looks to have been a lull in 74 2.0 production from nov 73 to sometime in feb 74 from all the L jet data we have. they mainly made the new L jets during those months. not many if any 2.0s down the line. |
Marcel Aircooled |
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#11
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Newbie ![]() Group: Members Posts: 41 Joined: 28-April 24 From: The Netherlands Member No.: 28,087 Region Association: Europe ![]() |
A standard rubber or silicone vacuum port cap that fits should do fine. I think that port is close to 12mm or so. Something like this. Perfect, thanks! |
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