![timing gear for cam 350 timing gear for cam 350](https://www.edelbrock.com/pub/media/catalog/product/cache/e7dbf151c553c386485241ab9efae3e3/0/0/007800_v1_1.jpg)
when it's time to install the distributor, etc):ġ) Rotate crank until crank sprocket dot is again at 12 o'clock, and via chain which rotates the cam 1/2 as much, the cam sprocket dot is now at 12 o'clock straight up. To set up Ignition timing after the chain has been installed (i.e. Re-confirm that the crank sprocket dot is at 12 o'clock and aligned with the cam sprocket dot at 6 o'clock. Carefully remove cam sprocket without rotating the cam, loop new chain over cam sprocket, keep the dot at 6 o'clock, droop chain down below the crank sprocket to engage the chain on the crank sprocket teeth, then gently slide the cam sprocket back onto the cam face without rotating the cam or crank.Ĥ. Rotate Cam sprocket so dot is at 6 o'clock low.ģ. To install Timing Chain (which will set valve timing):ġ.With no chain yet installed, rotate Crank sprocket so dot is at 12 o'clock high.Ģ. No I'm not going to use the crank bolt.or a pipe wrench (yikes). Can't use the flex plate to turn the crank, because the block is on a stand. I realize the spark plugs should be removed beforehand. How do you safely rotate the crank and cam so the marks line up correctly for installing a chain? As it sits the marks on the gears did not meet per the description. In other terms, the timing marks line-up vertically.I assume the cam and crank turn independently without a chain (clockwise).
![timing gear for cam 350 timing gear for cam 350](https://www.diymotofix.com/uploads/2/7/9/7/27975509/4974003_orig.jpg)
That's because there's just one key way on each snout.Īs I understand it, assuming the engine is straight (which it's not in the picture), when you install a timing chain the cam gear mark should be at 6-O-clock, and that lines up to crank gear mark at 12 O-clock. As long as those marks face forward the gears only insert one way. Just pulled the timing chain and gears off, and something escapes me for installing a new chain and gears.Įach gear has a timing mark. Not a rebuild, just a new oil pump and timing gear.