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Registered
Join Date: Jul 2006
Location: Norway
Posts: 193
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944 NA sputters and idles badly after redlining
For once I pulled up to 6500rpm in second, and immideatly after shifting up, the car starts to misfire. I limp home, and are able to start it, but it runs badly, and nearly dies.
When I give it gas it hesitates and appeares as to run on 3 cylinders? I'm no mechanic, not even on a hobby basis, but I unplugged each of the spark plug connectors (didn't have a socket to remove the plugs themselves) and it appears to be an oily residue on the inside of the plug connector, on plug no 1... Have I killed my engine?
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1998 Boxster 2.5 - Black (x) 1981 911 SC - Pacific Blue (x) 1986 944 N/A - Zermatt silver/black - Fr Wilks chip |
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04-20-2008, 11:37 AM
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Join Date: Apr 2008
Posts: 2
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do not run engine until you have checked timing..belt may have skipped a notch or two on the cam gear.
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04-20-2008, 11:43 AM
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Redline Racer
Join Date: Jan 2007
Posts: 2,444
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You could be -1 valve.
Check the cam timing first. If that doesn't look good, then check the compression (after fixing the cam timing). And if you don't have a compression tester or feel like being lazy/practical, just turn the engine over by hand (actually, with a wrench...) and feel for a missing or very weak compression stroke, and look at the distributor rotor position to see what cylinder it is. It should be pretty obvious if a valve is bent. Otherwise, use a spare plug and check for a spark at each cylinder. Or maybe a fuel injector, connector, or wire just flaked out. www.clarks-garage.com is your friend with these cars. Just click the garage manual link on the left.
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1987 silver 924S made it to 225k mi! Sent to the big garage in the sky Last edited by HondaDustR; 04-20-2008 at 07:32 PM.. |
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04-20-2008, 07:29 PM
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Registered
Join Date: Apr 2006
Posts: 5,179
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Could have jumped timing, which will make it run rough. If you have bent all the valves it would not run at all and would not have made it home.
Oily residue on the plug connector? This is strange. Oil should not be able to get there. Notice any blue or white smoke when you try to rev it out the tailpipe? This may indicate head gasket failure. A plug wire may have shot craps. Or distributor post. Just start playing the process of elimination game...
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04-21-2008, 02:35 AM
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