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Post by gabe72 on Apr 29, 2023 2:47:48 GMT -5
Hi everyone, im super curious about the 22 and 16 tooth oil pump for the QMB139. I’ve seen older threads about some people having to switch crankcases because the 16 tooth oil pump supposedly will not fit correctly in some cases. Is this true? Im looking to upgrade to a Naraku HD crank and it uses a 16 tooth gear for a 33 tooth oil pump gear.
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Post by 90GTVert on Apr 30, 2023 6:08:20 GMT -5
They should be interchangeable in most cases. There may be differences in where locator dowels are in the pumps and cases, so just be sure to look at the pump and case to be certain everything aligns as it did. Leave a locator out or better yet you could drill to allow a dowel in the same spot. If all else fails, use the same style of pump that you had but swap the gears on the crank.
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