Loud Knock - Very Scared, Need Help Immediately |
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Loud Knock - Very Scared, Need Help Immediately |
Nor.Cal.914 |
Dec 8 2005, 06:30 PM
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#1
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1975 914 3.0SC Group: Members Posts: 1,050 Joined: 28-January 05 From: Weatherford, TX Member No.: 3,523 Region Association: None |
I was just driving my car a minute ago and something very bad just happened. I had a concern about my revs earlier and how it wouldn't let me go over 4000 rpm. Well, I just replaced the coil and was trying it out to see if it helped my revs go past 4000. When I took it up there, something happened and a very loud knocking noise started happening. Another person on this thread had a post about a loud knocking noise that he heard when he started his car. Mine seems to be making the same kind of noise. I need help immediately! Any help as soon as possible would be helpful, please. Thank you very much.
-Chris |
dmenche914 |
Dec 9 2005, 04:41 PM
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#2
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Senior Member Group: Members Posts: 1,212 Joined: 27-February 03 From: California Member No.: 366 |
If you got a gage run a compression test. be sure to short the center coil wire when you crank with the plugs out if you have electronic points. this test will tell you if a valve is stuck open, burnt, too tight, bent, and is fast and easy to do. do it with warmed engine, all plugs out. to remove plugs, before removing plug, use compressed air or brush/rag and spray can cleaner to clear out the plug base area to prevent dirt from falling into the cylinder as plug is withdrawn. The plug is recessed, and lots of dirt will collect there and fall in.
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