390 Crank Change
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390 Crank Change
I got my recently upgraded 360 to 390 back from the machine shop a couple of days ago and they already put the short block together. Somehow the crank key went missing in the last 6 months, so they manufactured another 1/4" key for me that they put on the crank. The problem I am having is the collar won't fit over the key. I took my micrometer out and the collar is only 3/16" wide in the channel. So I went to the junkyard where they pulled the crank for me thinking maybe the collar was different from my old 360 collar, but it was the exact same. What should I do, am I missing something?
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I got my recently upgraded 360 to 390 back from the machine shop a couple of days ago and they already put the short block together. Somehow the crank key went missing in the last 6 months, so they manufactured another 1/4" key for me that they put on the crank. The problem I am having is the collar won't fit over the key. I took my micrometer out and the collar is only 3/16" wide in the channel. So I went to the junkyard where they pulled the crank for me thinking maybe the collar was different from my old 360 collar, but it was the exact same. What should I do, am I missing something?
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Cargo Master
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From: Harned, Ky
Take the key out, slide the spacer in place, then put the key back in the crank and install the balancer.
The slot in the spacer lines up with the smaller timing gear key, the larger 1/4" key is for the balancer only.
The slot in the spacer lines up with the smaller timing gear key, the larger 1/4" key is for the balancer only.
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