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Tech tip for timing a 250F

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When installing the timing chain the crankshaft will not stay in the correct spot unless held there. It seems the magnets in the flywheel pull it to either one side or the other of the correct spot. Here is the fix.

Find a long bolt that will screw into the timing window hole. Hold the crank in correct position with the timing chain and screw the bolt in finger tight against the flywheel. DO NOT OVERTIGHTEN! Install the chain, and remove the bolt. Double check the timing marks. You don't need to remove the center cap to access the flywheel bolt using this method.

You may remember a similar trick used to hold the pushrod for the fuel pump in place on small block Chevys when replacing the pump.

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I just use a 14mm socket on a 1/2 inch sliding t-bar. I find the timing mark and then install and balance the t-bar. I can slide the bar to the left or right to get it to where I want it and it's weight keeps the timing in place.

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