I know this is going to be so basic but I have to ask. Can the harmonic balancer be removed without removing the large (1 1/8") nut on the end of the crank? Im trying to tear down a junkyard 455 and I cant get the motor to turn over. Its down to the balancer, then the timing cover, and then I can remove the pan and internals. I cant get the large nut to turn at all. Ive tried impact wrenchs and breaking bars to no avail. Thanks for the help!
Sorry, the bolt has to be removed. A six point socket, breaker bar and a three foot piece of pipe is your best bet. They're usually torqued somewhere between 200 ft-lbs and infinity. Devon
Ive got a 1/2" air impact wrench and an 18" breaker bar...no luck with those...guess ill be hunting for a 3' piece of pipe next!
So now you can use the old backyard trick. Use a breaker bar, short extension, and socket. Prop the end of the breaker bar on the floor (drivers side). Crank the engine using the starter motor in a short burst. Works every time for me.
Correct, the engine is on the stand. I had picked up a 76 and a 73 that were complete carb to pan and Im trying to take the best from each to build one. But Im all ears for new tricks
Two hammers.. Set one against the bolt, and whack it with the other.. Give it a few good raps, and try your air hammer again. JW
Leverage is your friend. Secure the block/stand while you try. Another person onhand is a good idea, too! Devon
Sorry, missed thatou: If you can secure the engine to a stand, and have someone hold onto it, you should be able to get it loose with enough leverage. Good Luck.
Soak that sucker overnight with PB'laster with the engine crank snout pointed up, and whack the bolt head a few times over the course of time (application, during soak, while using breaker bar). Use big breaker bar 3/4" or 1" drive with cheater pipe. Never had one fail on that .
I just removed the one on my 455 last week with an impact wrench... The nut broke loose with 1 blast.... Mine is air powered but I have seen electric impact wrenches as well.... :3gears:
I forgot to post earlier but I finally got it broken loose. 18" breaker bar with a 3' piece of pipe on the end and all the weight I could put on it. I was just hoping there was a trick but it needed some old fashion elbow grease!
Naw, it needed some ol' fashioned TORQUE! Just went through this last weekend getting a crankshaft bolt out of a Dodge van to get some pulleys for my son's Dart. Had to back up the 3/4" breaker bar with an old bent driveshaft to keep it from skipping off the bolt head. The "kid" curls 120#, so I needed a lot of backup.
