![[Datsun 1200 encyclopedia]](/wiki/upload/wiki.png)
| Revision as of 10:09, 6 May 2016 ddgonzal (Talk | contribs) <- Previous diff |
Current revision ddgonzal (Talk | contribs) |
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| - | [[Category:Fuel System]] | ||
| = Why does my engine still try to run after I shut it off? = | = Why does my engine still try to run after I shut it off? = | ||
| Dieseling or engine run-on is a condition that can occur in gasoline powered engines, whereby the engine keeps running for a short period after being turned off, due to fuel igniting without a spark. | Dieseling or engine run-on is a condition that can occur in gasoline powered engines, whereby the engine keeps running for a short period after being turned off, due to fuel igniting without a spark. | ||
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| Causes of "running on" (continuing to run when ignition is turned off) are most commonly these: | Causes of "running on" (continuing to run when ignition is turned off) are most commonly these: | ||
| - | * Air leak -- leak at manifold gasket, carburetor gasket, or any of the assorted vacuum diaphragms such as the distributor, air cleaner flap motor, or carburetor choke-pulloff. | + | * Air leak -- leak at manifold gasket, carburetor gasket, or any of the assorted vacuum diaphragms such as the distributor, air cleaner flap motor, or carburetor choke-pulloff. See [[Vacuum Leaks]] |
| - | * Idle too high. Should be 750 rpm or lower. | + | * Idle too high. Should be 750 rpm or lower. See [[Carburetor_Adjustment#Idle_Speed_and_Mixture_Adjustment]] |
| - | * Open Chamber type cylinder heads. While these reduce emissions, they are more susceptible to run-on. Datsun fitted carburetors with [[Anti-diesel valve]] to these engines. | + | * Open Chamber type cylinder heads. While these reduce emissions, they are more susceptible to run-on. To reduce run-on, Datsun fitted carburetors with an [[anti-diesel valve]] to these engines. |
| + | |||
| + | = How do I stop the engine? = | ||
| + | See the causes and solutions above. But for now, you can easily stop the engine: | ||
| + | |||
| + | # set hand brake | ||
| + | # push clutch pedal down and put in high gear | ||
| + | # turn key OFF and at the same time let the clutch out slowly. This will stop the engine | ||
| + | |||
| + | [[Category:Fuel System]]{{End}} | ||
Current revision
[edit]
Why does my engine still try to run after I shut it off?
Dieseling or engine run-on is a condition that can occur in gasoline powered engines, whereby the engine keeps running for a short period after being turned off, due to fuel igniting without a spark.
Causes of "running on" (continuing to run when ignition is turned off) are most commonly these:
- Air leak -- leak at manifold gasket, carburetor gasket, or any of the assorted vacuum diaphragms such as the distributor, air cleaner flap motor, or carburetor choke-pulloff. See Vacuum Leaks
- Idle too high. Should be 750 rpm or lower. See Carburetor_Adjustment#Idle_Speed_and_Mixture_Adjustment
- Open Chamber type cylinder heads. While these reduce emissions, they are more susceptible to run-on. To reduce run-on, Datsun fitted carburetors with an anti-diesel valve to these engines.
[edit]
How do I stop the engine?
See the causes and solutions above. But for now, you can easily stop the engine:
- set hand brake
- push clutch pedal down and put in high gear
- turn key OFF and at the same time let the clutch out slowly. This will stop the engine
¤