Crankshaft Question
10-05-2010, 10:54 PM
#1
formerly Stroked-DSM (11/24/2010)
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Crankshaft Question
The last couple threads I posted up nobody has replied, but hopefully this thread will be different. This is my situation:
I ended up spinning a rod bearing on #3 cylinder. The cause of this was also the cause of my lifters making noise. The bolt holding the oil pickup line to the oil pump was missing, and the pump was basically sucking up air whenever I ripped on the truck.
I have yet to go look at the parts, I'm going tomorrow, but the engine builder told me everything can be re-used except for the crank. It has a Scat crank in it, so if it can be refurbished I'd really like to do that. Is there anything I should look for in particular to determine whether or not I should try to have this crank fixed, besides the marring that the bearing would have caused on the journals?
I know stock cranks can handle a good bit of power, but since everything else is forged, and I only wanna spend the money once, I'd like to keep a forged crank. Anyone else spin a bearing and re-use their cranks? Any input would be much appreciated
I ended up spinning a rod bearing on #3 cylinder. The cause of this was also the cause of my lifters making noise. The bolt holding the oil pickup line to the oil pump was missing, and the pump was basically sucking up air whenever I ripped on the truck.
I have yet to go look at the parts, I'm going tomorrow, but the engine builder told me everything can be re-used except for the crank. It has a Scat crank in it, so if it can be refurbished I'd really like to do that. Is there anything I should look for in particular to determine whether or not I should try to have this crank fixed, besides the marring that the bearing would have caused on the journals?
I know stock cranks can handle a good bit of power, but since everything else is forged, and I only wanna spend the money once, I'd like to keep a forged crank. Anyone else spin a bearing and re-use their cranks? Any input would be much appreciated
10-05-2010, 11:52 PM
#3
i dont see why the bearing area couldnt be machine down for a different size bearing.
Unless its to far gone on the bearing area,just depends any local machine shop could do this and tell you if its useable.
Long as nothing has hit any of the counter weights on the crank it should be fine and would not need to be rebalanced.
Your engine builder doesnt have a machine shop that does his machine work?
Unless its to far gone on the bearing area,just depends any local machine shop could do this and tell you if its useable.
Long as nothing has hit any of the counter weights on the crank it should be fine and would not need to be rebalanced.
Your engine builder doesnt have a machine shop that does his machine work?
10-06-2010, 01:20 AM
#4
formerly Stroked-DSM (11/24/2010)
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the machine shop IS the engine builder...same guy does it all
I don't trust anyone these days, only my mom, lol, so I don't want him telling me the crank is trashed, when really it's not, for his own benefit
I don't trust anyone these days, only my mom, lol, so I don't want him telling me the crank is trashed, when really it's not, for his own benefit
10-06-2010, 12:12 PM
#6
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I'll just take it to another machine shop for a 2nd look. This truck is my DD so sending the crank bank to Scat would take a while, and leave me without a vehicle
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