99 Gen 3 5.3 standard

Reply Subscribe

Thread Tools

Search this Thread

Dec 18, 2022 | 07:52 PM

1989Silverado

Thread Starter

Registered User

Joined: Dec 2022

Posts: 1

Likes: 1

99 Gen 3 5.3 standard

I am in the middle of assembling a 5.3, I put the crank in no problems. Today I have started putting in the pistons and I have torqued all of the rod caps to 40 FT LBS, as soon as I torque piston #7's rod cap past 15 FT LBS the crank becomes extremely tight and is impossible to turn. This is all re-used pistons, rods, and crank that came with the engine. I'm thinking its either the bearing or maybe a bent rod.
Thanks in advance.
Links
Bearings : https://www.ebay.com/itm/16466070081...mis&media=COPY

Dec 18, 2022 | 10:29 PM

strutaeng

TECH Apprentice

Joined: Aug 2018

Posts: 383

Likes: 108

Quote:

Originally Posted by 1989Silverado

Have you checked bearing clearances? Best tools to do this are micrometers and dial bore guage. But Plastiguage from the local parts store would be fine in you case. Maybe you got a bearing too tight?

Dec 18, 2022 | 10:45 PM

G Atsma

TECH Senior Member

Joined: Jun 2016

Posts: 22,295

Likes: 3,617

From: Central Cal.

BIG hint- NEVER buy critical engine parts (like bearings) off Ebay. It's a box of chocolates with a bad taste- you never know if you're getting the right parts....

Reply Subscribe

Reply Share

First
Prev
1 / 1
Next
Last