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| | | | Joined: Apr 2011 Posts: 50 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2011 Posts: 50 | fly wheel on compression stoke mark is a small triangle first, than small line mark,then a longer line,then smaller line mark. no ball bearing on fly wheel compression one nunmber clylinder by water pump. not sure what mark to use dosn't want to fire. replace vacuum advance was running. | | | | | Joined: Nov 2006 Posts: 2,544 Shop Shark | | Shop Shark Joined: Nov 2006 Posts: 2,544 | use some brake clean or lacquer thinner on a rag to clean the flywheel, it take a bit of scrubbing but you will find all the marks
| | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | | | | | | Joined: Oct 2006 Posts: 1,847 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 1,847 | there is a ball imbedded in the flywheel,it is about the size of a BB. they are often hard to find. that is the mark you use... go back in the old posts, there are several pictures of what it looks like. Also there is no separate mark for exhaust or compression stroke, only one mark for TDC (well there is a couple of different marks on the flywheel, but that is beside the point) TDC could be on exhaust or compression, make sure you don't have it 180 degrees out.
You said you changed the vacumn advance, did you pull the distributor to get the mechanism off?
Last edited by brokenhead; 07/22/2012 8:17 AM.
| | | | | Joined: Apr 2005 Posts: 1,107 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 1,107 | when i get a truck one of the first things i do is to remove the flywheel cover and spin the crank and clean it off with degreaser until i find the markings. a dremil wire wheel works great for polishing up the markings and the ball. i take white paint on a toothpick and fill in the line between U/C. you will never have a further issue locating it ever again | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | SimonBolivar, The initial adjustment timing setting is different for different year engines. Also, different year flywheels have differerent marks, including a ball, line(s), a triangle - usually at least a ball is there. Here is some information on the timing mark for various engines/years. Please note that a flywheel from one year might be found on another year's engine: http://www.secondchancegarage.com/public/468.cfmhttp://www.secondchancegarage.com/public/468.cfmOnce you know you have the distributor installed correctly to fire the #1 cylinder on its compression stroke, and you have the plug wires in the proper rotation-order, you can use the ball or just about any other nearby mark as the initial/rough timing mark (to get the engine to run and rough idle). Once you can get the engine running/idling, you can fine adjust the timing setting by using a few other techniques (highest vacuum reading at 2,000 rpm, or a "no ping on load adjustment"). | | |
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