 Cylinders 3 and 4 are dead, why? |
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| Skid |
 May 8 2010, 06:27 PM
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Just a fool, a fool in love  Group: Members Posts: 68 Joined: 1-February 05 From: Chattanooga, TN Member No.: 3,538 Region Association: None  |
I just brought home a 73 1.7. This is the first 914 that I have actually owned, but not the first one that I have driven. My dad has always had a few 914's around and I finally decided it was time to get one of my own. When I first picked up the car, it ran pretty good and smooth. The original fuel injection has been removed and replaced with some duel single barrel weber carburetors and it has a 009 distributor. Like I said, the car ran pretty good when I first got it about 2 weeks ago. For the past 2 weeks I haven't driven the car more than just around the block, and suddenly, out of the blue, I went to go move the car and it is running bad. It has a definite misfire and, when I pull the plug wires off the distributor cap, 3 and 4 seem not to be firing. I have checked compression in those two cylinders and they are fine. I am getting fuel (I can see that the carb is squirting gas), and I have also tested to see that I was getting spark on those two cylinders. If I have spark, fuel, and compression, what am I missing? How could it just change overnight? I am pretty stumped here, my dad, who has worked on these things for over 20 years is also pretty stumped. Any ideas or help would be very appreciated.
(IMG:http://www.914world.com/bbs2/uploads_offsite/lh5.ggpht.com-3538-1273364830.1.JPG) (IMG:http://www.914world.com/bbs2/uploads_offsite/lh4.ggpht.com-3538-1273364831.2.JPG) And the mess of an engine bay..... (IMG:style_emoticons/default/barf.gif) (IMG:http://www.914world.com/bbs2/uploads_offsite/lh6.ggpht.com-3538-1273364831.3.JPG) Thanks, Chase Birks |
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| 70_914 |
May 8 2010, 06:50 PM
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Member Group: Members Posts: 395 Joined: 4-December 09 From: Roy, WA Member No.: 11,096 Region Association: Pacific Northwest |
Do you have one of the dual carb tuning tools? Getting fuel does not mean getting the right amount of fuel. The only common part is the carburetor. Check for vac leaks, intake leaks, etc.
Does it smooth out at higher RPM? |
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| Skid |
May 8 2010, 06:59 PM
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Just a fool, a fool in love Group: Members Posts: 68 Joined: 1-February 05 From: Chattanooga, TN Member No.: 3,538 Region Association: None |
I have changed all of the plugs, so I don't think that is the problem. I have also thought that it may be the carb, but I am not sure at this point. I will see if I can tell if they are working correctly. Any other things I should check?
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Posts in this topic
Skid Cylinders 3 and 4 are dead, why? May 8 2010, 06:27 PM
Tom Check # 3 and # 4 plugs.
Could be fouled a... May 8 2010, 06:46 PM McMark I would rebuild those carbs before I mess with any... May 8 2010, 07:39 PM Vacca Rabite :agree:
Lots of little passages that could be plu... May 8 2010, 07:50 PM kwales My bet is ignition problems.
With a single carb, ... May 9 2010, 08:22 AM McMark But it's not a single carb. It's dual car... May 9 2010, 09:28 AM kwales OK, OK, I read duel single barrel and brain stoppe... May 9 2010, 12:37 PM JamesM Hurry up and get that thing running, you have a P... May 10 2010, 01:07 AM
Skid Ok! I figured it out! Boy do I feel stupid... May 10 2010, 10:53 AM Skid Oh, and James, I will sure try to make it to that ... May 10 2010, 10:56 AM JamesM Yup, i recognize those cars! I was wondering w... May 10 2010, 07:52 PM 70_914
Ok! I figured it out! Boy do I feel stupi... May 10 2010, 11:38 AM Skid
Ok! I figured it out! Boy do I feel stup... May 10 2010, 12:29 PM Skid Ok, so I lied apparently. 3 and 4 are now running ... May 10 2010, 07:36 PM Root_Werks So your Dad got to drive the steel top then? :dri... May 10 2010, 11:16 AM Skid
So your Dad got to drive the steel top then? :dr... May 10 2010, 12:25 PM JamesM
So your Dad got to drive the steel top then? :d... May 10 2010, 08:14 PM |
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