440 crank won't rotate with rod #4 installed
#1
440 crank won't rotate with rod #4 installed
I'm currently rebuilding a 76 motorhome 440 to put in my 70 Challenger and am having a problem with rod #4. I have been torqueing all of the rods to spec back to front and turning the engine over in-between to make sure nothing had seized. As soon as I torque rod #4 to spec the engine will no longer turn over. If I torque rod #3 to spec without #4 it turns over fine and if I don't torque the bolts all the way to spec it turns over fine. I checked the bearings and everything seems fine. Does anyone have any ideas about what is causing this and how to fix it?
#2
Mopar Lover
Bullet -
Remove the #4 rod and piston.
Torque the bolts (out of the block) and see if there's free movement on both ends.
Also look for score marks on the cylinder.
Archer
Remove the #4 rod and piston.
Torque the bolts (out of the block) and see if there's free movement on both ends.
Also look for score marks on the cylinder.
Archer
#6
Super Moderator
Rod cap on backwards?
Thread
Thread Starter
Forum
Replies
Last Post
atowncris
General Technical Questions
0
11-19-2009 12:48 PM