replacing my rod bearings
Fourth Generation Moderator
October 2009 ROTM
October 2009 ROTM
iTrader: (1)
Joined: Nov 2007
Posts: 10,560
From: Eastern PA,
ROTM Winner's Club
What you are describing is a spun bearing. There is metal everywhere. In your ports in your cam bearings, in your lifters. The spun rod needs resized. Its my opinion but you are wasting money putting parts in there without a good cleaning. If you pulled the Cam out I would bet you need Cam bearings.
Ok ill pull the intake heads pistons cam replace or resize the rods clean the crap out of the block new cam bearings and lifters... phew I'm becoming an lt1 expert here lol... it will be worth it in the end... I hope
Fourth Generation Moderator
October 2009 ROTM
October 2009 ROTM
iTrader: (1)
Joined: Nov 2007
Posts: 10,560
From: Eastern PA,
ROTM Winner's Club
Is it even possible to install new cam bearing with the motor in on a 4th gen? The tool is pretty long and you have to be sure the holes line up. I would not want to try that.
In the end you would be better off finding a used low miles motor. (short blocks from Buicks or impalas can be had pretty cheap) If yours was a low miles it would not be as hard. Right now your cylinders are out of round if you remove the rings they will loose their position and the rings will not seal well. New rings have a wear in surface to make up for this out of round but with used rings that is gone.
In the end you would be better off finding a used low miles motor. (short blocks from Buicks or impalas can be had pretty cheap) If yours was a low miles it would not be as hard. Right now your cylinders are out of round if you remove the rings they will loose their position and the rings will not seal well. New rings have a wear in surface to make up for this out of round but with used rings that is gone.
My engine is low miles 120k and I just had the cylinders resurfaced... now I'm wondering do I fix the engine now or do I start saving my money and go with a wild build...
Fourth Generation Moderator
October 2009 ROTM
October 2009 ROTM
iTrader: (1)
Joined: Nov 2007
Posts: 10,560
From: Eastern PA,
ROTM Winner's Club
120K is not low miles, 31K is low miles. Are you saying this is a fresh rebuild? You have bored out the cylinders and it has new piston?
Tech Droid
Joined: Aug 2005
Posts: 9,215
From: North East PA
I tried to fix a 94 Chrysler on the cheap, never again. Engine had a spun rod bearing. Pulled engine out, slapped in a reground crank and the bearings that came with it, put it back in the car. Took it for a test drive, and five minutes later it was knocking again. Took engine out of the car and tore engine apart and found the same rod bearing spun again. Next time around did the job properly and the engine ran another 100K with no problems, except that the rest of the car was falling apart.
