 73 2.0L Idle problem |
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| cwpeden |
 Dec 26 2012, 01:34 AM
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Great White North, huh?  Group: Members Posts: 916 Joined: 20-August 06 From: Victoria BC Member No.: 6,693 Region Association: Canada  |
I'm trying to help a friend solve an idle problem. Idle is low to the point of stalling and backfiring.
Here's what we have tryied so far: Grounds are good Timing is good Dwell is a litlle high Vacuum hoses are good Cyl head temp sensor good Ballast resistor good Points good Cap good rotor good Been through two trobleshooting guides with no results. Need help figuring out a peculiar problem. When I take the vac lines off the dist I get the the usual high revs but they dont go away when the lines are plugged. Could this be a symptom of a bad vac can on the dist? Any thoughts |
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| Cap'n Krusty |
Dec 27 2012, 06:06 PM
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
QUOTE(cwpeden @ Dec 25 2012, 11:34 PM)  I'm trying to help a friend solve an idle problem. Idle is low to the point of stalling and backfiring. Here's what we have tryied so far: Grounds are good Timing is good Dwell is a litlle high Vacuum hoses are good Cyl head temp sensor good Ballast resistor good Points good Cap good rotor good Been through two trobleshooting guides with no results. Need help figuring out a peculiar problem. When I take the vac lines off the dist I get the the usual high revs but they dont go away when the lines are plugged. Could this be a symptom of a bad vac can on the dist? Any thoughts Ummm, Yeah. What "ballast resistor"? 914s don't have a ballast resistor. The Cap'n |
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| cwpeden |
Dec 28 2012, 02:10 AM
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#3
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Great White North, huh? Group: Members Posts: 916 Joined: 20-August 06 From: Victoria BC Member No.: 6,693 Region Association: Canada |
QUOTE(Cap'n Krusty @ Dec 27 2012, 04:06 PM) QUOTE(cwpeden @ Dec 25 2012, 11:34 PM) I'm trying to help a friend solve an idle problem. Idle is low to the point of stalling and backfiring. Here's what we have tryied so far: Grounds are good Timing is good Dwell is a litlle high Vacuum hoses are good Cyl head temp sensor good Ballast resistor good Points good Cap good rotor good Been through two trobleshooting guides with no results. Need help figuring out a peculiar problem. When I take the vac lines off the dist I get the the usual high revs but they dont go away when the lines are plugged. Could this be a symptom of a bad vac can on the dist? Any thoughts Ummm, Yeah. What "ballast resistor"? 914s don't have a ballast resistor. The Cap'n I meant the inline resistor on the CHT sensor. not sure why I called it a ballast resistor. Must have been thinking of something else. Will check the MPS though and probably need to pull the dist. for a thorough cleaning. and vac can test. I'll bet the ground wire in the dist is loose too. Just to clarify. With everything hooked up the idle is low to the point of stalling and backfiring. When I pull the hoses to set the timing the idle goes up as expected, but dosent return to normal when the hoses are plugged. Should it? thanks for the suggestions. |
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Posts in this topic
cwpeden 73 2.0L Idle problem Dec 26 2012, 01:34 AM
914itis Was timing set with the vac lines plugged? Try to ... Dec 26 2012, 05:44 AM cwpeden Timing set with vac lines off the dist and plugged... Dec 27 2012, 03:24 AM Bleyseng MPS is correct number (037) and tests good with a ... Dec 27 2012, 10:48 AM cwpeden Does MPS affect idle mixture?
If it was bad I wou... Dec 27 2012, 03:55 PM euro911 There's not much vacuum being drawn above idle... Dec 27 2012, 04:34 PM
914_teener
There's not much vacuum being drawn above idl... Dec 27 2012, 04:57 PM euro911 Does MPS affect idle mixture?
If it was bad I wou... Dec 27 2012, 05:36 PM euro911 Valves adjusted correctly?
Dwell should be somewhe... Dec 27 2012, 06:17 PM euro911 Are you sure the two vacuum hoses to the dizzy are... Dec 28 2012, 10:17 AM 914_teener
Are you sure the two vacuum hoses to the dizzy ar... Dec 28 2012, 01:03 PM cwpeden I'm feeling the same myself, about the conditi... Dec 29 2012, 06:41 PM cwpeden Finally had the chance to go to my friends place t... Jan 11 2013, 01:29 AM euro911 If you don't already have a 'MightyVac... Jan 11 2013, 01:44 AM |
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