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Fresh machined gar crank hard to spin crank when installed

Fresh machined gar crank hard to spin crank when installed

 
Old 02-22-2019, 11:45 PM
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Default Fresh machined gar crank hard to spin crank when installed

Hi everybody Iím new to the formuns and need some advice. Today I went to go Gap my pistons rings for my gsr block Iím rebuilding. Now the block is on a engine stand with only the crank installed I spun the crank over a couple times and it move fairly easy by hand but I heard a faint scraping noise immediately remove the crank to find it was hitting a oil squirter. Solved that issue and reinstalled the crank. After torquing down all the main cap to spec and checking to see if the crank clears them all I notice that it seemed a bit harder to spin (only crank installed no pistons or rods) on initial rotation once itís spinning is not so hard to move. Does anyone have any feedback or has anyone experience anything like this?
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Old 02-23-2019, 06:20 AM
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Default Re: Fresh machined gar crank hard to spin crank when installed

Did you install the crank caps in the correct location and in the correct orientation? They are labelled for position and orientation
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Old 02-23-2019, 08:54 AM
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Default Re: Fresh machined gar crank hard to spin crank when installed

Originally Posted by motoxxxman View Post
Did you install the crank caps in the correct location and in the correct orientation? They are labelled for position and orientation
Im 99% I did Iím going to double check today.
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Old 02-23-2019, 10:54 AM
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Default Re: Fresh machined gar crank hard to spin crank when installed

oem bolt? or arp? std bearing?oil clearence between crank and bearing?
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Old 02-23-2019, 01:25 PM
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Default Re: Fresh machined gar crank hard to spin crank when installed

Originally Posted by 1HGEJ2 View Post
oem bolt? or arp? std bearing?oil clearence between crank and bearing?
Oem bolts, std aclís and Iím finna check the clearances but the machine shop said everything was standard and the crank spun very easily b4 I notice the crank was slightly scrapping the oil squirter.
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Old 02-23-2019, 06:18 PM
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Default Re: Fresh machined gar crank hard to spin crank when installed

Are you sure that the crank girdle/caps came from this original motor?I saw that in the past someone installed another crank caps/girdle from another block.Get some plastigauge for check you clearance first!
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Old 02-23-2019, 06:19 PM
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Default Re: Fresh machined gar crank hard to spin crank when installed

did you lubed the bearings prior to setting in the crankshaft ??
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Old 02-23-2019, 07:05 PM
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Default Re: Fresh machined gar crank hard to spin crank when installed

Originally Posted by flesh199 View Post
Are you sure that the crank girdle/caps came from this original motor?I saw that in the past someone installed another crank caps/girdle from another block.Get some plastigauge for check you clearance first!
I just got done plastigauging the crank everything measured within .0015 of an in clean all the journals and added assembly lube and torqued down and sheís spinning as freely as ever. Thank you all
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Old 02-23-2019, 07:07 PM
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Default Re: Fresh machined gar crank hard to spin crank when installed

Originally Posted by NVturbo View Post
did you lubed the bearings prior to setting in the crankshaft ??
I did but it idk it just seemed to be super hard to get it to start spinning but now itís spinning as free as ever. Thank you everyone for your inputs and subjection have a blessed day / night.
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Old 02-24-2019, 04:11 AM
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Default Re: Fresh machined gar crank hard to spin crank when installed

Originally Posted by flesh199 View Post
Are you sure that the crank girdle/caps came from this original motor?I saw that in the past someone installed another crank caps/girdle from another block.Get some plastigauge for check you clearance first!
My block has a different crankshaft and it's fine. Just as long as the clearance is within spec and bearings are the correct size, it will work fine.
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Old 02-24-2019, 07:49 AM
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Default Re: Fresh machined gar crank hard to spin crank when installed

Originally Posted by NVturbo View Post
My block has a different crankshaft and it's fine. Just as long as the clearance is within spec and bearings are the correct size, it will work fine.
there's a difference between crankshaft and crank caps. you can swap cranks to no end. You can not swap crank caps without major machine work
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