RestoreThemAll
Jedi Warrior
Offline
I'm replacing the timing gears and chain on my BJ7 for no other reason than I have the engine out and torn apart. I'm ready to install and noticed a shim washer behind the crank shaft gear. My Bentley manual says to use the same number of washers as found when dismantling unless new crank or cam components have been installed. I believe that my engine had only one washer but it's been torn down longer than I'm going to admit to. So I need to measure. Also, the one washer shim that is there is in really tough shape. I'll replace it.
The book says to determine the thickness of washers required place a straight edge across the sides of the cam shaft wheel teeth and measure with a feeler gauge the gap between the straight edge and the crankshaft gear. I'm not real clear on that instruction. I understand that the gears must line up so that the chain runs true. Is the correct procedure: First install the gears on the shafts with no shim and lay a straight edge across the two gears?
One other question: Does it help to put the gears in the freezer for a couple of hours before installing to slightly open up the hole size?
The book says to determine the thickness of washers required place a straight edge across the sides of the cam shaft wheel teeth and measure with a feeler gauge the gap between the straight edge and the crankshaft gear. I'm not real clear on that instruction. I understand that the gears must line up so that the chain runs true. Is the correct procedure: First install the gears on the shafts with no shim and lay a straight edge across the two gears?
One other question: Does it help to put the gears in the freezer for a couple of hours before installing to slightly open up the hole size?