Am I Over Carbed?, Dual Weber 40 IDFs on 1.7 |
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Am I Over Carbed?, Dual Weber 40 IDFs on 1.7 |
7TPorsh |
Aug 25 2014, 10:52 AM
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#1
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7T Porsh Group: Members Posts: 2,691 Joined: 27-March 06 From: Glendale Ca Member No.: 5,782 Region Association: Southern California |
I have been trying to drive my car comfortably but I am running across issues. Mainly after the car warms up it starts acting weird.
Coming to a stop and revs dropping. it just dies. Then I have to wait a minute or two to get started again. Then it runs a little rough, pops, backfires. Just did the valves, points, timing but runs like crap when hot. The engine is a 1.7 block with 1.7 heads and dual 40s. I don;t know if there was any work done internally but the block is a 71 and car is a 70. It has been suggested that I am way overcarbed and running rich. i have no plans of building out this motor to match the carburation. Am I better off selling off this dual weber set and putting on a single Weber 32/36? I have my eye on this: http://www.ebay.com/itm/310953732343?ssPag...984.m1423.l2649 I am thinking the weber and hex setup should be worth around $450? What say you? |
rhodyguy |
Aug 25 2014, 01:12 PM
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#2
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,080 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
where does the pass side line from the bb terminate? just stuck thru the tin and spewing under the car?
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7TPorsh |
Aug 25 2014, 02:23 PM
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#3
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7T Porsh Group: Members Posts: 2,691 Joined: 27-March 06 From: Glendale Ca Member No.: 5,782 Region Association: Southern California |
where does the pass side line from the bb terminate? just stuck thru the tin and spewing under the car? The hose from the breather? It's down through the tin and plugged...no oil makes it down there. I am hoping at some point to vent the valve covers. So on the venturi, I need to check later. If these vary then I guess there are sizes up to 40? I can use? What's the normal setup for a 1.7 or over-bored 1.7? I guess jet size is the next factor? |
Kansas 914 |
Aug 25 2014, 02:44 PM
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#4
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Advanced Member Group: Members Posts: 2,999 Joined: 1-March 03 From: Durango, Colorado Member No.: 373 Region Association: Rocky Mountains |
where does the pass side line from the bb terminate? just stuck thru the tin and spewing under the car? The hose from the breather? It's down through the tin and plugged...no oil makes it down there. I am hoping at some point to vent the valve covers. So on the venturi, I need to check later. If these vary then I guess there are sizes up to 40? I can use? What's the normal setup for a 1.7 or over-bored 1.7? I guess jet size is the next factor? 1.7L heads have a tube just above the engine tin on each side for that hose from the breather puke can. Look at the left side in this picture of the intake just below the mounting nut. The passenger side would be towards the rear of the car. |
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