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Registered
Join Date: Feb 2006
Location: Warrington, PA
Posts: 1,348
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throttle help!
Just out working on my car after reading the frwilk write up on the 944NA stumble. My car would idle at about 850-900, but when I would rev it, it would drop to 600 for a second, then go back to normal idle. I was adjusting the 8MM stop screw nut under neath the throttle cam, well not adjusting, breaking. I went to turn the nut out to higher the idle a little bit, he says 1K, and the screw broke. Now i have an idle that is 1200rpm's, and now way of getting the screw out? Any tips or pointers on how to do this procedure?
 The bolt middle left, above my finger.
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Steve- If you havent looked, look- www.clarks-garage.com 87 951 red- Maria (current) 84 944 white- Percilla (current DD) 85.5 944 red- Pinta (past) 87 924S red- Nina (past) Last edited by thekidd; 07-19-2008 at 01:25 PM.. |
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07-19-2008, 01:19 PM
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meister member
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You could pull the throttle body where you can access the broken bolt, drill a small pilot hole and use and EZ-out to extract it.
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1983 944 guards red with 16" Fuchs, Host of Wisconsin area timing/ balance shaft belt tensioning party 1987 944S Purchased from Legion. Corvette LT-1 V-8 conversion with Mega Squirt II Check on progress ---> www.porschehybrids.com/gallery/speedracing944 Favorite Road = www.tailofthedragon.com 318 turns in 11 miles (11 min 20 sec best run) |
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07-19-2008, 04:23 PM
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Registered
Join Date: Feb 2006
Location: Warrington, PA
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thats true, i can do that, thanks. Didnt even think of that, haha, thats the easiest way. 850-900 is the normal idle speed, correct?
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Steve- If you havent looked, look- www.clarks-garage.com 87 951 red- Maria (current) 84 944 white- Percilla (current DD) 85.5 944 red- Pinta (past) 87 924S red- Nina (past) |
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07-19-2008, 04:31 PM
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Politically Incorrect
Join Date: Aug 2005
Location: Hoover, Alabama
Posts: 1,494
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Piece of cake...
...First, a question. You said you idled at 1200 RPM after you snapped off the nut/stud. Did you forget to put the throttle return spring back on? I ask, because the idle really shouldn't have changed if all you did was snap off the nut/stud.
To fix it, go to Lowe's and get a 5mm x (about) 20mm long bolt or screw and a 5mm nut. Squirt a little PB Blaster on the remnant of the stud. You picture shows a little tit sticking out where it's supposed to contact the throttle lever. Grab the tit with a pliers and rock back and forth until the penetrating oil frees it. Unscrew it and discard. Now take the 5mm nut and screw it on the 5mm bolt all the way. Screw the nut/bolt assembly into the hole. With the throttle return spring attached, turn in the bolt until it just touches the throttle lever. Turn the bolt in 1/8th turn more and lock it in place with the nut you threaded on earlier. Paint on a little finger nail polish to keep it from vibrating loose (I used Revlon "Cherries In The Snow" - please don't tell my wife). NOTE: ANYTIME YOU MESS WITH THIS SCREW, YOU HAVE TO RE-ADJUST THE THROTTLE POSITION SWITCH. Once you reset the TPS, adjust the idle speed with the idle speed screw and not the throttle stop screw. Hope this helps...
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Edek '87 924S '91 535i Last edited by onZedge; 07-19-2008 at 04:56 PM.. |
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07-19-2008, 04:41 PM
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Registered
Join Date: Feb 2006
Location: Warrington, PA
Posts: 1,348
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Yeah i put the throttle return spring back on. And yes it did help me some. Didnt know that you have to reset the throttle positin switch after you mess with the screw. Thanks.
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Steve- If you havent looked, look- www.clarks-garage.com 87 951 red- Maria (current) 84 944 white- Percilla (current DD) 85.5 944 red- Pinta (past) 87 924S red- Nina (past) |
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07-19-2008, 05:54 PM
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