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Joined: Jul 2007
Posts: 55
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Jul 2007
Posts: 55 |
In setting the firing order: as I read on a four cylinder it should be 1,2,4,3,. Here's my question: On the distributor how do I know which wire goes to the number one plug? Is it base on the direction of the tip of the rotar???
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Joined: Dec 2001
Posts: 11,162
ChatMaster - 10,000
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ChatMaster - 10,000
Joined: Dec 2001
Posts: 11,162 |
Yes it is based upon where the rotor is when the #1 piston is up to Top Dead Center with both valves closed The distributor can then be inserted and engaged with the cam shaft gear with the rotor pointing to the number one sparkplug wire, if you are a stickler for correctness. If you don't want to pull the distributor, get #1 to top dead center , valves closed and notice where the rotor is pointed. The closest plug terminal should hold the plug wire to #1 sparkplug, then the next sparkplug hole in the direction the rotor turns will be #2 so on. Please note that the crank shaft turns two revs to the one for the rotor, so just having the #1 piston top dead center isn't enough, it could be 180 degrees off. That will be a starting place to get the engine to run so the timing can be set with a timing light.
Life's a long winding trail, love Jesus and ride a good horse!
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Joined: May 2002
Posts: 6,149 Likes: 42
ChatMaster - 6,000
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ChatMaster - 6,000
Joined: May 2002
Posts: 6,149 Likes: 42 |
To add to MrMacks reply an easy method to determine #1 top centre is to remove #1 spark plug place your finger over the hole and turn the motor by hand When you feel pressure on your finger the piston is rising on compression then turn until timing marks line up the rotor then points to the #1 position on cap the rest of the wires in sequence go to the respective plugs
Tony
1938 1/2 ton Hope to drive it before I retire
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Joined: Dec 2001
Posts: 11,162
ChatMaster - 10,000
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ChatMaster - 10,000
Joined: Dec 2001
Posts: 11,162 |
Thanks, Tony, good point.
Life's a long winding trail, love Jesus and ride a good horse!
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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Joined: Dec 2001
Posts: 11,162
ChatMaster - 10,000
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ChatMaster - 10,000
Joined: Dec 2001
Posts: 11,162 |
OH Yes! This thread of Ray's topic is what you need!
maybe I will learn to search the forums on the site before answering...sometime.
...Sometimes I am overwhelmed by all the information available here.
Life's a long winding trail, love Jesus and ride a good horse!
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