 Carb issues take two, Idle still dropping off Dual IDF 40s |
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| VaccaRabite |
 Aug 22 2010, 09:47 AM
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En Garde!  Group: Admin Posts: 13,729 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region 
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If you remember from my last thread, I have started having an issue where my idle was dropping from 1100 to ~500 and the engine would sputter. I thought it was due to clogged idle jets.
Well, Friday I cleaned the dickens out of my idle circuits and set idle back to 1100. Yesterday (saturday) I drove the 914 70 miles to Plaskets' summer BBQ. The car did great until I got to within a few miles of Plaskets, with the idle falling off again. ScottyB and I tinkered with it for a while - checking timing and trying to figure out what the hell was going on. What we found was that the drivers side bank of carbs was dropping out, possibly due to the idle stop backing off. But the carbs were just being wonky. We ended up not really fixing anything. I set idle back to 1100 and headed for home. the 70 mile trip was more or less uneventful until I for a mile or so away from my house. Stopped at a light and almost home, I could feel a cylinder drop off. The idle dropped down to about 1000 rpm and the idle became just a little lumpy. When I got home, I was back to idling on 2 cylinders at 500rpm and the car was sputtering in my driveway while I waited for the garage door to open. I had to keep blipping the throttle to keep it alive. The thing is, as son as you give the car gas, all four cylinders fire up and the car is a blast to drive. Its just back down to idle where I have issues. I am at the point where I am going to unhook the linkage and start from scratch to rebalance everything, and hope that fixes it. If anyone has other ideas as to what is going on I'd love to hear them! Zach |
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| Dr Evil |
Aug 22 2010, 08:38 PM
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Send me your transmission! Group: Members Posts: 23,038 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region
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(IMG:style_emoticons/default/popcorn[1].gif) I got nothing....
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| type2man |
Aug 22 2010, 11:04 PM
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#3
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Member Group: Members Posts: 355 Joined: 3-March 09 From: Miami, Fl Member No.: 10,127 Region Association: South East States |
I would first start off with a new set of plugs. I recently switch from Bosch to NGK's and they work great.
I would check the idle stop screws to make sure they dont turn freely and they have the springs on them. You could have an intake leak at the head when the engine warms. |
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Posts in this topic
Vacca Rabite Carb issues take two Aug 22 2010, 09:47 AM
brant I sometimes have the same issue when hot. I can... Aug 22 2010, 10:54 AM
Vacca Rabite
I sometimes have the same issue when hot. I can... Aug 22 2010, 11:06 AM neyen14 I had this problem... I have the CB performance li... Aug 22 2010, 10:59 AM brant are their idle stops on both banks?
I can't re... Aug 22 2010, 11:10 AM Vacca Rabite
are their idle stops on both banks?
I can't r... Aug 22 2010, 11:20 AM ME733 ............Well it is obvious you guys have a mod... Aug 22 2010, 11:26 AM brant
............Well it is obvious you guys have a mo... Aug 22 2010, 11:37 AM ME733
............Well it is obvious you guys have a m... Aug 23 2010, 08:26 AM Vacca Rabite Indeed. My car idled like a rock at 1100 rpm all ... Aug 22 2010, 11:48 AM Root_Werks Zach,
I bumped my 50's to 55's a while ba... Aug 22 2010, 12:20 PM Vacca Rabite You know, we did not check plugs yesterday. I lik... Aug 22 2010, 01:21 PM Cevan
You know, we did not check plugs yesterday. I li... Aug 23 2010, 08:51 AM Root_Werks
You know, we did not check plugs yesterday. I li... Aug 23 2010, 08:55 AM karnak hi Guys,
i was poking around and decided to join... Aug 22 2010, 02:22 PM jmill Even with the idle stop screw backing out you woul... Aug 22 2010, 06:59 PM rhcb914 Not sure what type of fuel filter you are using bu... Aug 22 2010, 07:13 PM Vacca Rabite My immediate plan of action is this:
pull and insp... Aug 23 2010, 06:52 AM brant Murry,
your posts are often negative and belittl... Aug 23 2010, 08:50 AM ME733
Murry,
your posts are often negative and belitt... Aug 23 2010, 10:42 AM |
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