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I'll race for food
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name this part
 car started misfiring yesterday. When I step on it in first , second, it misfires, and looses power,then a few seconds later seems to be running fine until I stand on it again. The only obvious broken part is the plastic piece on top of the fan, that does have a cooling hose going to the belt that drives the rotors (twin-plug) Could the belt overheat, and expand to the point where it fires the wrong plug?
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Radu '82 SC black on black "The Beauty" 3.8 RSR GT2 track/street "The Beast" www.octanegallery.com |
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10-06-2007, 03:10 PM
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PRO Motorsports
Join Date: Nov 2001
Location: Burbank, CA
Posts: 4,580
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Billy.
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'69 911E coupe' RSR clone-in-progress (retired 911-Spec racer) '72 911T Targa MFI 2.4E spec(Formerly "Scruffy") 2004 GT3 |
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10-06-2007, 03:16 PM
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PRO Motorsports
Join Date: Nov 2001
Location: Burbank, CA
Posts: 4,580
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But seriously:
Smart Racing makes a flat fiberglass piece that covers here. You can drill a hole in the plastic shroud, and install the dist. vent there instead, and use the SR part, which won't fail like the stock piece. It will also give better airflow to the engine.
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'69 911E coupe' RSR clone-in-progress (retired 911-Spec racer) '72 911T Targa MFI 2.4E spec(Formerly "Scruffy") 2004 GT3 |
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10-06-2007, 03:19 PM
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I'll race for food
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hey Tyson, can that have anything to do with the misfire?
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Radu '82 SC black on black "The Beauty" 3.8 RSR GT2 track/street "The Beast" www.octanegallery.com |
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10-06-2007, 05:03 PM
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Registered
Join Date: Jan 2007
Location: Somewhere in North L.A. County
Posts: 2,107
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Radu
At least your dizzy has been modified/ updated. The factory had a tech bulletin about this issue. I have read a lot of folks didn't mod them and have had failures. If the dizzy has not been modded to vent the distructive ozone gas inside the dizzy the belt driving dizzy #2 is prone to fail resulting in get out the checkbook. This will cause a misfire or worse. Did you check the drive belt to see if it snapped? Also pop the lid and check it at night in the dark. Get someone to rev it up to 3000 rpms while you watch to see if you have any electrical leakage at one of the distributor caps or spark plug wires. Check on top and bottom of the engine. May be just a spark plug wire leaking causing misfire or loss of power.
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Jeff Hail "All men dream: but not equally. Those who dream by night in the dusty recesses of their minds, wake in the day to find that it is vanity; but the dreamers of the day are dangerous men, for they act their dream with open eyes, to make it possible" |
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10-06-2007, 10:22 PM
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Registered
Join Date: Sep 1999
Posts: 944
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If you've had the distributor out check timing. You may be off a tooth or two. Done at the flywheel.
Tom
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R Gruppe #111 Early S Registry #235 res ipsa loquitur |
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10-07-2007, 04:38 AM
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stitch
Virginia
BEAST
corona
