Quote:
Originally Posted by engatwork
...........there is something at the crank pulley that keeps the chain from being able to jump a tooth at the crank sprocket. You will see what I am talking about if you ever rebuild one of these engines. It is like a tab that is on the front crank bearing cap. Keeping this in mind there are guide rails between the ip sprocket and the crank sprocket that really won't let much chain settle down in that area (if you drop it down on that side). The spring loading on the vacuum pump can cause the ip to move a little to the low spot on the pump lobe as you roll the chain in but you can pull this back up towards the camshaft if it does this.
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.........and, this was what I had in mind when I noted that the chain will survive just fine on the crankshaft and IP sprockets without tension.
Losing a tooth on the camshaft is easy to do without a painted mark or tie wraps.
The manual shows a painted white line across the chain and the sprocket. If this procedure is properly followed, there is no possibility of losing one tooth on the camshaft.