 help with diagnosis, popping through exhaust |
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| joeav8tor |
 Oct 15 2008, 03:13 PM
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#1
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Member  Group: Members Posts: 408 Joined: 23-January 05 From: mattituck, Long Island NY Member No.: 3,493  |
Hi guys,
I go back and forth with wanting to sell my 73 Phoenix Red 914 2.0 with stock fuel injection, but the weather in the Northeast has been nice and I have been driving it, and want to keep it but its driving me crazy...I'm having a problem that maybe you could help me with...I bought the car and took the engine out for new fuel lines, vacuum lines, pushrod tube seals, shifter seals, oil cooler...the works....I recently painted the car (with the engine in) only the exterior was painted...after 1.5 years of paint and body work....there is a popping through my exhaust and the idle is not steady, sometimes 1000, sometimes 500, sometimes 900-1000...the popping is new, but the idle was always a problem...yesterday I replaced the points, set the dwell and the timing...still popping through the exhaust and the idle is still acting up, when I turn the distributor and the RPM increases...the popping goes away and my idle is higher, but the car is not timed correctly (using a timing light and the Haynes manual, process was done correctly) when the car is timed correctly...the idle adjustment screw when turned and sucking a lot of air will only get the idle to around 1100 and I have to adjust the D Jet control unit to try to get the idle from bouncing, but its not running right...I did reconnect the tranny grounding strap when I put the engine back in...I never replaced the PCV valve or adjusted the throttle switch...I want to keep the original fuel injection in the car if I could...but I could see why guys want to tear this stuff out...it has been driving me crazy for years. thanks (IMG:style_emoticons/default/flag.gif) Joe |
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| jmill |
Oct 15 2008, 09:31 PM
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#2
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Green Hornet Group: Members Posts: 2,449 Joined: 9-May 08 From: Racine, Wisconsin Member No.: 9,038 Region Association: Upper MidWest |
When you turn the distributor and the RPM increases your advancing the timing. Too far advanced and you'll pop through the intake. Too far retarded you pop through the exhaust. I know you say you followed the manual but I have to ask. Did you remove and plug the vacuum line to the distributor when you set the timing?
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Posts in this topic
joeav8tor help with diagnosis Oct 15 2008, 03:13 PM
jmill Popping through the exhaust tells me your timing i... Oct 15 2008, 03:34 PM KaptKaos Dunno if this applies to FI, but check the nuts on... Oct 15 2008, 04:00 PM Rod 9 out of 10 times the erratic tickover on the FI i... Oct 15 2008, 04:04 PM joeav8tor thanks guys for the replies, I adjusted the valves... Oct 15 2008, 04:15 PM joeav8tor good catch!!!! I did remove the v... Oct 15 2008, 10:45 PM
Root_Werks
good catch!!!! I did remove the ... Oct 16 2008, 10:21 AM jmill That will give you a vacuum leak but it wouldn... Oct 16 2008, 09:52 AM joeav8tor NO GOOD! I timed the car with the vacuum hose... Oct 16 2008, 08:33 PM orange914
NO GOOD! I timed the car with the vacuum hos... Oct 16 2008, 08:48 PM jmill If it runs better with a big vacuum leak your set ... Oct 16 2008, 09:14 PM |
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