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Total 17 documents matching your query.

1. What causes "shutoff shudder"? (score: 1): Author: Tab Julius <tab@penworks.com>; Date: Tue, 9 Nov 1999 14:06:18 -0500 (EST); Turning off my ignition, my 78B's engine will often give me a few shudders before it decides to shut off for good. This is an effect I remember fondly from other older manual, probably non-fuel-injec; /html/mgs/1999-11/msg00420.html (7,934 bytes)
2. Re: What causes "shutoff shudder"? (score: 1): Author: "Paul Hunt" <paul.hunt1@virgin.net>; Date: Tue, 9 Nov 1999 20:05:58 -0000; This is running-on, or Dieseling, and is caused by the incomung fuel charge being ignited by pressure and residual heat in the cylinders *after* the ignition has been switched of. It was a progressiv; /html/mgs/1999-11/msg00424.html (9,507 bytes)
3. Re: What causes "shutoff shudder"? (score: 1): Author: Skye Poier <skye@ffwd.com>; Date: Tue, 9 Nov 1999 13:40:57 -0800; The common term for this is "deiseling" or "run-on". The engine is hot enough to continue to ignite air/fuel even though there is no spark. I could be wrong, but I think your 78 should have an anti-r; /html/mgs/1999-11/msg00427.html (8,650 bytes)
4. Re: What causes "shutoff shudder"? (score: 1): Author: James Nazarian Jr <James.Nazarian@Colorado.EDU>; Date: Tue, 9 Nov 1999 15:09:39 -0700 (MST); If what you are describing is run-on, I don't know how to tune it out of the system, but if you blip the throttle before you turn the key off it should keep it from happening. Just a guess, but I thi; /html/mgs/1999-11/msg00428.html (9,107 bytes)
5. RE: What causes "shutoff shudder"? (score: 1): Author: "Steve Conley" <swconley@foxinternet.net>; Date: Tue, 9 Nov 1999 22:37:07 -0800; The '73-80 models of B have the anti-run on valve. When you (not you Skye!) turn off the engine, you should hear an audible click from the valve kicking-in. It is located on the passenger side of eng; /html/mgs/1999-11/msg00448.html (10,043 bytes)
6. RE: What causes "shutoff shudder"? (score: 1): Author: Tab Julius <tab@penworks.com>; Date: Wed, 10 Nov 1999 08:25:37; Thanks to all - I've had a number of suggestions, a few have narrowed down to this valve, which I will check, but all are good ideas. - Tab; /html/mgs/1999-11/msg00450.html (10,917 bytes)
7. Re: What causes "shutoff shudder"? (score: 1): Author: "Chris Velardi" <tchris@freewwweb.com>; Date: Wed, 10 Nov 1999 08:52:24 -0500; Dieseling is most commonly caused by incorrect timing Chris "V" http://www.xtremedefender.com http://www.extremeforce.com --; /html/mgs/1999-11/msg00451.html (11,857 bytes)
8. RE: What causes "shutoff shudder"? (score: 1): Author: Hans Duinhoven <H.Duinhoven@simac.nl>; Date: Wed, 10 Nov 1999 14:56:26 +0100; I have heard this more, but don't understand. At time you switch off the ignition, there are no sparks at the spark plug anymore. Still the engine goes on (like a diesel engine). Why should the cause; /html/mgs/1999-11/msg00452.html (13,099 bytes)
9. Re: What causes "shutoff shudder"? (score: 1): Author: "Chris Velardi" <tchris@freewwweb.com>; Date: Wed, 10 Nov 1999 09:10:47 -0500; I believe it is due to un-burnt fuel in the combustion chamber, or un-burnt fuel exiting the combustion chamber in to the exhaust manifold or headers and combusting due to excessive heat. But I'm not; /html/mgs/1999-11/msg00453.html (14,618 bytes)
10. Re: What causes "shutoff shudder"? (score: 1): Author: David Hill <davhill@cwcom.net>; Date: Wed, 10 Nov 1999 19:41:42 +0000; The only way I could shut it off with out the damaging dieseling (engine Hi, Chris & everyone else. Rex, my '72 Special Tuning BGT, runs on like crazy. The PO (not DPO, he's my pal), used to stall th; /html/mgs/1999-11/msg00483.html (9,444 bytes)
11. Re: What causes "shutoff shudder"? (score: 1): Author: Skye Poier <skye@ffwd.com>; Date: Wed, 10 Nov 1999 14:31:51 -0800; That was my thinking as well. The only way I can see incorrect timing causing run-on is if it's making the car run a lot hotter than it should be (over-retarded, I think). Then its sort of an indirec; /html/mgs/1999-11/msg00496.html (8,916 bytes)
12. Re: What causes "shutoff shudder"? (score: 1): Author: Max Heim <mvheim@studiolimage.com>; Date: Wed, 10 Nov 1999 16:40:53 -0800; I believe that the reason the engine continues to run is that carbon deposits inside the combustion chamber are still burning, or are at least hot enough to cause the fuel to ignite. The cause of the; /html/mgs/1999-11/msg00501.html (9,674 bytes)
13. Re: What causes "shutoff shudder"? (score: 1): Author: BobMGT@aol.com; Date: Thu, 11 Nov 1999 00:18:30 EST; The only way I've found to completely eliminate my 71's run-on is to use premium gas with an octane booster. Remember these cars are supposed to get 98 octane. (Also no ping and it runs better!) Bob; /html/mgs/1999-11/msg00517.html (8,356 bytes)
14. Re: What causes "shutoff shudder"? (score: 1): Author: Tab Julius <tab@penworks.com>; Date: Thu, 11 Nov 1999 00:24:50; Well, I can't afford 98 octane on the 13.5 gallon tank :) 87 octane is now running US$1.33; 97 is, I think, $1.53 (please, no ongoing thread about fuel prices). To date, the suggestions, in descendin; /html/mgs/1999-11/msg00520.html (9,071 bytes)
15. Re: What causes "shutoff shudder"? (score: 1): Author: "Paul Hunt" <paul.hunt1@virgin.net>; Date: Thu, 11 Nov 1999 10:26:42 -0000; When the ignition is off but the engine is still spinning it is sucking in exactly the same fuel/air mixture as it was before. If conditions inside the combustion chamber allow i.e. glowing carbon or; /html/mgs/1999-11/msg00535.html (15,876 bytes)
16. RE: What causes "shutoff shudder"? (score: 1): Author: Hans Duinhoven <H.Duinhoven@simac.nl>; Date: Thu, 11 Nov 1999 11:56:26 +0100; I understand that carbon contamination in the cylinderhead or onto the piston is causing this. Now we come to the next step: what causes the buildup of this carbon: 1 wrong timing - o.k. I understan; /html/mgs/1999-11/msg00536.html (17,561 bytes)
17. Re: What causes "shutoff shudder"? (score: 1): Author: dwilkins@wcta.net (Don Wilkins); Date: Thu, 11 Nov 1999 12:01:36 GMT; I have been wondering when someone is going to suggest.. l. New plugs 2. Check timing (new points and condenser) 3. Higher octane gas.; /html/mgs/1999-11/msg00537.html (8,345 bytes)

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