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Joined: Feb 2004
Posts: 63
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Feb 2004
Posts: 63 |
Hello Everyone,
As I am about to start my engine for the first time in a long time, my brain decided to not work well, and I want to make sure I didn’t install the distributor 180 degrees wrong. One side of my brain says that as the ball on the flywheel passes the pointer #1 fires. The other side says that as the ball passes one time, #1 fires, then the ball passes again, at which point #6 fires, always repeating this. Someone please set my brain straight!
Thanks,
Steve
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Joined: Nov 2008
Posts: 1,513
ChatMaster - 1,500
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ChatMaster - 1,500
Joined: Nov 2008
Posts: 1,513 |
I think the best way is bring #1 cylinder to top dead center on compression stroke then back off to timing mark the rotor should be pointing to number one wire
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Joined: Feb 2004
Posts: 63
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Feb 2004
Posts: 63 |
Hello Andy,
All right I know that #1 is TDC, now how do I know if it is on the compression stroke? I'm learning- in 20 years I might know what I am doing!
Steve
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Joined: Jun 2007
Posts: 1,894
ChatMaster - 1,500
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ChatMaster - 1,500
Joined: Jun 2007
Posts: 1,894 |
If you pull the spark plug for #1 and turn the engine by hand you'll get air pushing out the plug hole on the compression stroke. If you have the rocker cover off, you want the piston just before top dead center as mentioned above and both intake and exhaust valves will have lash (free play) for cyl #1 and the rockers will be able to rock slightly with hand pressure. Compare the rockers to other cylinders and you'll immediately realize which valves are open...
1938 Canadian Pontiac Business Coupe (aka a 1938 Chevy Coupe with Pontiac shaped front sheet metal - almost all Chevy!)
1975 4-speed L82 Vette
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
This is what works for me.
Align the timing pointer with the ball on the flywheel. Both valves on #1 cylinder should be closed (stems all the way up). If one valve is not closed you are 180 Deg. off.
With both valves closed and the pointer on zero install the dist so the rotor is pointing to the #1 terminal on the distributor cap.
This will be with the dist. all the way down. Note rotor turns a bit while dist. goes down. You can rotate teh dist. a bit after the engine is running, get it to the point where engine idles the best - then the timing willl be about correct.
Gene Schneider
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Joined: Feb 2004
Posts: 63
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Feb 2004
Posts: 63 |
Thanks everyone for your quick answers! I'll be trying it tomorrow!
Steve
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