 Distributor cap nubbin, Whats its purpose? |
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| 74ravenna |
 Dec 12 2015, 10:05 AM
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#1
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Member  Group: Members Posts: 471 Joined: 19-October 14 From: nh Member No.: 18,032 Region Association: North East States 
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While cleaning electrical contacts of corrosion I just had to reach in and touch the Nubbin I'm holding in this picture, so of course it popped out.
I've managed to put it back in but I'm not sure I trust that its in securely. It now leans like the tower of pisa in its little receptacle. So to most of you out there this is a very basic item but I don't know what it does or if I can trust that its back in correctly. An explanation is greatly welcome. Thanks. Attached thumbnail(s) 
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| DBCooper |
Dec 12 2015, 10:16 AM
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14's in the 13's with ATTITUDE Group: Members Posts: 3,079 Joined: 25-August 04 From: Dazed and Confused Member No.: 2,618 Region Association: Northern California |
It's the carbon contact between the main lead in the center of the cap that carries current from the coil lead through the rotor to each of the spark plug leads. Spring loaded to keep it in contact as the rotor spins. If it's leaning it's in crooked and probably won't last very long, will be spun out and your car will stop dead almost certainly in the middle of a very busy intersection.
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| 74ravenna |
Dec 12 2015, 10:24 AM
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#3
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Member Group: Members Posts: 471 Joined: 19-October 14 From: nh Member No.: 18,032 Region Association: North East States
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QUOTE(DBCooper @ Dec 12 2015, 11:16 AM)  It's the carbon contact between the main lead in the center of the cap that carries current from the coil lead through the rotor to each of the spark plug leads. Spring loaded to keep it in contact as the rotor spins. If it's leaning it's in crooked and probably won't last very long, will be spun out and your car will stop dead almost certainly in the middle of a very busy intersection. Excellent explanation. I will keep messing with it until its in correctly. Thanks so much for the help. |
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Posts in this topic
74ravenna Distributor cap nubbin Dec 12 2015, 10:05 AM
fixer34 I don't think there is much 'messing' ... Dec 12 2015, 12:03 PM
Spoke
Might be time for a new cap.
:agree:
If you ... Dec 12 2015, 01:00 PM
74ravenna
I don't think there is much 'messing... Dec 12 2015, 01:01 PM sixnotfour you need a bosch cap or better quality with brass ... Dec 12 2015, 01:05 PM boxsterfan I would drop $10 on a new cap. Dec 12 2015, 02:49 PM DBCooper
I would drop $10 on a new cap.
+4 A lot... Dec 12 2015, 03:03 PM Shadowfax Not sure if the 2.0 caps are the same as 1.7 or 1.... Dec 12 2015, 04:12 PM The Cabinetmaker I agree with sixer. Get a new cap. A Bosch cap... Dec 12 2015, 04:13 PM ripper911 I don't think I've ever noticed that piece... Dec 12 2015, 05:03 PM r_towle Get two caps, keep one in the trunk. Dec 12 2015, 05:15 PM 74ravenna Thanks all for the great advice. I will certainly ... Dec 12 2015, 05:42 PM r_towle A) what is your name and real location?
B) Northe... Dec 12 2015, 06:57 PM 74ravenna
A) what is your name and real location?
B) North... Dec 12 2015, 07:38 PM r_towle Steve, glad to meet.
John , Wndsnd is near you, s... Dec 12 2015, 09:09 PM |
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