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Old 02-05-2017, 11:52 PM   #1
KonigWolf
 
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Comp LS crankshaft socket #4914 doesn't fit l99

I bought a LS series (#4914) crank socket. I'm fly cutting my pistons an was wanting to check P2V clearance from 0 to 20 degrees when I finished an this was suppose to make degreeing (and building in general) so much easier... But it doesn't fit. Anyone else use this tool? Same problem? Any solutions?


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Old 02-06-2017, 02:18 AM   #2
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put the bolt in it to turn it.
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Old 02-06-2017, 08:49 PM   #3
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If only it was that simple. The inside teeth of the socket do not fit over//onto the oil cogs.
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Old 02-06-2017, 11:35 PM   #4
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you're trying to use that socket to turn the motor over correct? you can use a 1 1/16 socket on the balancer bolt to do that.
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Old 02-07-2017, 11:40 PM   #5
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Quote:
Originally Posted by JCunningham View Post
you're trying to use that socket to turn the motor over correct? you can use a 1 1/16 socket on the balancer bolt to do that.
I'm wanting to turn the motor over with my degree wheel attached, and also be able to adjust my degree wheel, thus the reason behind buying the Comp socket.



Oem 6 point crank bolt is 15/16" or 24mm. ARP 12 point crank bolt is 1 1/16" or 27mm.
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Old 02-07-2017, 11:55 PM   #6
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ok I didnt think about that
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Old 02-15-2017, 07:27 AM   #7
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Curious as to why you need to relieve the stock pistons more?
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Old 02-15-2017, 09:08 AM   #8
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Make a bushing that will go inside the degree wheel and accept the bolt... Easy peasy.
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Old 02-15-2017, 09:09 AM   #9
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Originally Posted by pir4te View Post
Curious as to why you need to relieve the stock pistons more?
For adequate clearance with a big cam.
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Old 02-15-2017, 09:15 AM   #10
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Thanks for that, what specs cam / where are the concern(s)?
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Old 02-15-2017, 09:30 AM   #11
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Originally Posted by pir4te View Post
Thanks for that, what specs cam / where are the concern(s)?

There was not enough PTV with the cam and head combo.
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Old 02-15-2017, 10:10 AM   #12
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Mine does fit very snug but will go on with some persuasion without damage.


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Old 02-15-2017, 07:25 PM   #13
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Just had this discussion with Summit, comp, and proform. Comp didn't really know what to say besides it's for gen 3s. I said it dont make sense when you can swap oil pumps. Moroso just came out with a crank socket but I haven't ordered it yet. It is supposed to fit. Doing.a cam swaps on a buddies ls3 this coming week.
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Old 02-15-2017, 10:22 PM   #14
KonigWolf
 
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Quote:
Originally Posted by pir4te View Post
Curious as to why you need to relieve the stock pistons more?
Quote:
Originally Posted by BFASTNOTLAST View Post
For adequate clearance with a big cam.
Exactly what BFast said.

Correct me if I am wrong, but those are LS3 pistons?
I know on my L99, they have two valve reliefs already cut. The intake is useless and nowhere in the ballpark, and I think the exhaust relief is enough that I won't have to cut...Or so I am told. Going to be quite annoyed if I check PTV an it doesn't meet tolerance and I have to wait a week for the tool to come in.


Quote:
Originally Posted by pir4te View Post
Thanks for that, what specs cam / where are the concern(s)?
I'm installing GPI's SS4 VVT Cam. Think the cam card was something like 235/249 on a 112LSA .640/.630-ish lift. I'd have to find my card to get the exact specs. I'm running TSP 260cc heads milled a itte bit down to 67cc with a .040 MLS gasket. The heads are suppose to give .020-.025 additional PTV over stock heads((Not holding my breath on these claims)), but with -.011 from the head gasket and -.007 from the head shave, I'm using up .018 of my .020 right out the gate.



Quote:
Originally Posted by BFASTNOTLAST View Post
Make a bushing that will go inside the degree wheel and accept the bolt... Easy peasy.
It's rather frustrating when you spend 60 on a tool and still have to make something yourself to do the job.


Quote:
Originally Posted by ksmrz View Post
Just had this discussion with Summit, comp, and proform. Comp didn't really know what to say besides it's for gen 3s. I said it dont make sense when you can swap oil pumps. Moroso just came out with a crank socket but I haven't ordered it yet. It is supposed to fit. Doing.a cam swaps on a buddies ls3 this coming week.

I haven't heard of Moroso making one. I'm already half was into my project an no longer worried about my 60$ paper weight. After it's all said an done, I may try an come up with a CAD file of a proper fitting socket, and see how much it would cost to have one CNC'd.
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