Electronic choke, PO cut the wires |
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Electronic choke, PO cut the wires |
Chaznaster |
Nov 29 2015, 08:48 PM
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#1
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Member Group: Members Posts: 302 Joined: 22-November 15 From: Concord, MA Member No.: 19,389 Region Association: North East States |
Hi. My son and I are starting to work on a '74 1.8 converted to a single Weber carb setup. The POs tore out most of the wiring and sensors.
A few weeks ago when the weather in MA was warm she started easily. Today it was 40 degrees F and we could not get her started. We had fuel and a spark. Would it help to get the choke rewired? I would think so ... I read somewhere about using a + connection off the coil?? Many thanks. [quote] |
SLITS |
Nov 29 2015, 09:13 PM
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#2
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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 |
The bi-metallic electric coil inside needs a switched, constant 12 VDC source. From the coil is an easy connection, but in cold conditions and a weak battery the choke could pull sufficient voltage to drop the volts to the coil and make it not function correctly. You have an AAR valve wire in the engine harness and as I remember it is white. This would be a better source for your needed 12 volt source.
When cold the choke flapper is closed. When the key is turned, constant power is applied to the coil. As it heats up it will open the choke flap. The should also be adjustment screw(s) on the linkage to adjust fast idle. A long runner and cold weather do not make for a great starting solution anyway, but activating the choke, with a couple of pumps on the loud pedal might get you going when it is cold. |
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