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Mod | | | Forums66 Topics128,034 Posts1,055,547 Members48,425 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Oct 2012 Posts: 23 New Guy | | New Guy Joined: Oct 2012 Posts: 23 | Ok, have a 59 1/2 toon with a 235, I have no experience with cars so I have some dumb questions. I'm in the process of installing an hei distributor that I got from Langdon's stovebolt, the instructions tell me to set cylinder #1 to 10-18 degrees btdc, there are a few marks on the fly wheel, a circle(not a bb) which Is tdc, right before the circle the are two vertical lines an inch or so apart, then a triangle a few inches before the lines. where exactly is 10-18 degrees, and what are these marks on the fly wheel? | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 |
In order to know the meaning of those marks, you need to know the year/engine that the flywheel came out of.
Presumably, it is a 1959 235 truck engine? The timing mark that year is the ball on the flywheel - 5 degrees BTDC - Before Top Dead Center).
| | | | | Joined: Oct 2012 Posts: 23 New Guy | | New Guy Joined: Oct 2012 Posts: 23 | I'll take a look at it againg tomorow, it also says to run a 10 ga wire from the ignition coil to the ignition switch and delete any resistors, there is a ballast resistor on the fire wall, both wires go to the ignition, is this the resistor Its telling me to delete? do I just pull the wires off of the resistor and tape them off? | | |
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