need some advice!!!!!engine builders come on in here

twolo4u2c2

5 Year Member

Apr 10, 2003

330

6

29

reading, PA

Dec 22, 2006

#1

• Dec 22, 2006

• #1

I tearing down my 347 tomorrow and I know I have a thrown rod bearing. What is the steps to correct the problem.....rods fixed crank ground if needed new bearings? not shure what to have checked or fixed besides new bearings. what would this aprox cost to have done......or am I on the wrong track here. just get a new 347 rotating assy.

thanks in advance

 

Chietala

New Member

Sep 21, 2006

111

0

0

Sacramento

Dec 23, 2006

#2

• Dec 23, 2006

• #2

Grind the crankshaft journals in the opposite direction it normally rotates in the engine, then polish it in the same direction it rotates in the engine. Also make sure you get thicker bearings for whatever journal was ground. Shouldnt be more than a couple hundred bucks.

 

twolo4u2c2

5 Year Member

Apr 10, 2003

330

6

29

reading, PA

Dec 23, 2006

#3

• Dec 23, 2006

• #3

thats a help.....what about the rods.....should those be checked as well?

 

mstngjoe

Founding Member

Jul 26, 2002

428

0

0

Oregon

Dec 23, 2006

#4

• Dec 23, 2006

• #4

Until you tear it down and determine the cause of the failure, it's tough to say what you will need to do.

Try and get some good digi pics of the bearings and post back here. Their condition will tell alot.

 

thumper460

Founding Member

Jul 24, 2000

3,022

2

56

Orange Park , Fl

Dec 23, 2006

#5

• Dec 23, 2006

• #5

fix it!!

after tear down.. have the crankshaft mic'd and turned IF Need be! Have the rod mic'd ( big end) and resized if need be.. low mileage, then you MIGHT re use the ring set.. IF not.. then the rings.. correct bearings .. gaskets and your back up and rocking for about 300-350.00!! Re balance isnt needed if they grind the crankshaft .010 cool??

Just me....................................

Thumper