Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks
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Putting together my 1931 194 after having the block bored and honed by the machine shop. Its currently mounted upside down on an engine stand. Would love some informed advice on installing the smaller, steel timing gear onto the crankshaft. The gear is too large to fit through the hole in the mounting plate that bolts to the engine block front. As such, the crankshaft with gear already affixed can't be laid into the block and have the gear pass through the front main plate. Unless I'm missing something obvious, it appears that there are two options:
A) install the crankshaft timing gear with the crankshaft out of the block, with the mounting plate between crankshaft and gear, then lay in the crankshaft along with the mounting plate as a unit. B) Install the crankshaft and bearing caps to secure it, and with the front plate already bolted to the front of the block, drive the timing gear onto the crankshaft with a hammer (block of hardwood to protect the gear from direct hammer blows). Option B makes me wonder about possible risks.
Any insights at all would be sincerely welcome and appreciated.
There are 2 methods you can use (1 is to enlarge the hole through the mounting late so the gear will fit through) the other (2 is to fir the crank into the block then warm the gear (but dont turn it blue) the warming expands it enough to then fit it to the crank).
Tony
I Attach the front mounting plate to the block. Then use a large hammer and wood block to persuade the gear onto the shaft that has been installed into the block. Small taps with a large hammer are better than large taps with a smaller one. A misplaced tap can ruin your day. Fingers, gears and other unintended objects can suffer. If you do opt for the heat method used by Tony it is best to use an oven so the temperature can be controlled. However make sure you have good insulated gloves when handling HOT objects.
How sweet the roar of a Chevy four
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@anthony-williamson Thanks Tony for your input. Much appreciated.
@chip Thanks Chip for covering all these bases. It's reassuring to know the order of assembly. I would guess that the oven should be set for something near its limit, like 475 degrees -- Hot enough to do the job but still nowhere near reaching the critical temperature at which the integrity of the steel is altered.
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