Motor won't turn when main caps are torqued
Motor won't turn when main caps are torqued Sup guys got 02 5.3 and I torqued the main and rods and motor won't turn. I got the heads on and the plugs are out. Cam is in along with the rockers, pushrods, and those are torqued also. I just untighten the mains and the Motor turn fine. I torqued the main to 15 ft lbs and 80 degrees
I admire people trying to do their own labor, but atleast research the task a little before you begin. The caps need to go back on where they came from. Checking bearing clearances are a must If there is too much, you will have low oil pressure, too tight and you will smoke a bearing and destroy the crank and most likely the block. Lot of $$$ down the drain.
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TECH Fanatic
Joined: Jul 2011
Posts: 1,074
Likes: 2
Take it back apart, check the bearing clearances, make sure the caps are facing the right way and are torqued properly. You can't just slap it together you have to mic the journals and bearings and check everything.
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TECH Fanatic
Joined: Jun 2011
Posts: 1,343
Likes: 8
From: Katy, TX
Good lord, sorry dude but I am going to bash you a little. This is the reason we see broken parts all the time. You really have no reason being in there if you can not even get the main caps on right. The LS motors are even marked from the factory. The old SBC's were not, you had to mark them yourself before you took them apart. This is the reason I never buy a modded car. I would rather do the mods myself.
You should at the minimum plastigauge it.
Buy a book or search the internet....
You should at the minimum plastigauge it.
Buy a book or search the internet....
