350ci motor
Emerging Vendor
Joined: Mar 1999
Posts: 1,599
Likes: 114
From: San Diego CA
Did the bearing get grooved? What happened to it? Are there gouges or marks on the crank. If the engine is in and the crank is fine just replace the bearings. Otherwise you will have to pull motor and have the crank machined .010 or .020 and get all new bearings that size.
Drifting
Joined: Oct 2013
Posts: 1,577
Likes: 121
Is the rod itself ok? How bad is the crank? If the crank is to bad to polish I would remove the crank and have the journals turned and leave the mains alone. Any idea what caused the bearing to go bad? Also maybe I am misunderstanding, is it the crank/main bearings or a rod bearing?
Race Director
Joined: Jul 2015
Posts: 13,082
Likes: 3,399
From: SW Florida.
look on the back of the bearing shell. it will say STD, 010, 020, etc. buy a bearing that size, clean up crank journal install it and plastigauge it. but if bearing went bad, something is wrong with something. a size is off, bad oil feed, something. I have replaced bearings and had motors live. about 50%.
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Burning Brakes
Joined: Jan 2012
Posts: 943
Likes: 73
Without finding the cause of the failure, the same thing will probably happen again.
