engine problem |
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engine problem |
STP |
May 31 2006, 06:48 PM
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#1
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Member Group: Members Posts: 64 Joined: 29-January 06 From: Alameda, CA Member No.: 5,497 Region Association: Northern California |
So, My 914 has been sitting at my grandmother's house for the last 2 months and after finally being able to work on it again I've run into a few problems.
Firstly, none of my gauges are working. Not the tach, not the fuel gauge, nothing. Second and more importantly, I was checking and adjusting the timing on the dizzy according to the PP article, and the engine started making this knocking noise. I'm not sure what it is. At first I thought it was preignition, Seeing as I advanced the timing, but it sounded mechanical, like lifters maybe but really loud. Then I thought because it hadn't been started in a while that maybe I should have primed the oil pump. But, like I say, I have no idea so far. I did a compression test on it before I put it away and one of the cylinders was about 40psi lower than the others. So my questions are: What could the gauge problem be? I dont even know where to start so even that would be helpful. What's the most likely answer to the knocking problem? What do I do about the low compression? I thought 40psi was kinda high. Will I need to get a valve job? Could this be related to any of the other problems I'm having? Compression: 140 120 120 100 I have a 73 2.0 with Webers (40s) if this helps. Thanks for all your help, Sean |
lapuwali |
May 31 2006, 06:56 PM
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#2
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743 |
On the gauges, it's most likely a fuse. I can't remember which fuse, but look for the one that powers the red/white wire, which powers the gauges. Even if all the fuses LOOK OK, try wiggling and rotating them in their holders.
I can't answer you knocking question. Set the timing to factory specs, and if it knocks at idle, it's not likely a timing problem, but something else. Noises are very hard to diagnose remotely. Which cylinder was low, and what were all the numbers? What's the color of the plug on the low cylinder? Adjusted your valves recently? |
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