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2 points
What's the deal with my crankshaft?
RM351 and one other reacted to gregaust for a post in a topic
Then it's time for a stroker crank -
1 point
What's the deal with my crankshaft?
CHESTNUTXE reacted to RM351 for a post in a topic
I was doing a closer inspection on the crankshaft and I've noticed 6 small unusual holes on the journals. This from a late Cleveland block, is this something they did at the factory or from a previous engine owner and what would be the point of this? The journals are all standard size. -
1 pointLooks like a Brinnel hardness test gone wrong, as Thom said, and someone didn't use sleeves over the rod bolts when installing the pistons. (Small chatter marks). The crank should be OK if it was in a running engine, it would have failed by now for sure. Just need to make sure there are no sharp edges around the dents, use a 5 or 6 mm drill bit BY HAND, and slower chamfer the 'holes' then linish the journals with some emery tape etc.
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1 point
What's the deal with my crankshaft?
CHESTNUTXE reacted to RM351 for a post in a topic
I've jumped the gun a bit, already bought a set of pistons to suit. Most stroker kits sell with .030 size pistons I need .020 size ones so I'll need to buy in bits. -
1 pointCould be an improperly done brinnel (hardness) test
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1 point
What's the deal with my crankshaft?
CHESTNUTXE reacted to deankxf for a post in a topic
@Thom may have an idea? -
1 point
What's the deal with my crankshaft?
CHESTNUTXE reacted to RM351 for a post in a topic
Anyone?
