harmonic balancer won't come off
#1
Driver School Candidate
Thread Starter
Join Date: Jan 2013
Location: ok
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
harmonic balancer won't come off
Hi all, I have a 99 rx300, I am trying to change the timing belt but cant get the bolt loose for the crank pulley, i've impacted it, put bolts in the holes on the pulley and tried prying against those. Neither approach has worked and im wondering if someone might have an idea how to get it out, short of drilling it out or just putting in a new crankshaft. Thanks for any input.
#2
Moderator
Is the main pulley stuck or the bolt? Your post is not clear.
To break the bolt there are three ways:
1. Use a tool to hold the pulley while you undo the bolt with lots of leverage. Search and you will find how to construct the tool.
2. Use lager impact wrench.
3. Use the starter to spin the crank shaft, while you use the floor to lock the wrench (pulse the starter, and not start the engine.
If the pulley is stuck, you have to use another tool to pull it off the shaft.
Salim
To break the bolt there are three ways:
1. Use a tool to hold the pulley while you undo the bolt with lots of leverage. Search and you will find how to construct the tool.
2. Use lager impact wrench.
3. Use the starter to spin the crank shaft, while you use the floor to lock the wrench (pulse the starter, and not start the engine.
If the pulley is stuck, you have to use another tool to pull it off the shaft.
Salim
#4
Lexus Champion
Use a 3/4 in. impact and the bolt will be off in about 0.4 of a second. You are turning it counter-clockwise (like a normal bolt) aren't you? It is installed with 150 ft. lbs. of torque and it is also lock-tited, that's the reason it's so hard to get loose. I made a bracket to keep the pulley from turning and used a long breaker bar and it still took a lot of muscle to loosen it. If you do either of the things I mentioned, it will come loose! It's that tight so that the rotation of the crank won't cause it to come loose since it's conventional thread.
#5
Driver School Candidate
Thread Starter
Join Date: Jan 2013
Location: ok
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
I may have to wait on that due to funds. I've never had a problem getting them off with the equipment I have now though, that was where my concern was coming from. Whether its been done before and someone got careless with putting it back in, i.e cross threaded.
Trending Topics
#9
Lexus Champion
I don't think that's going to do it. If you had a 2 stage compressor that produced about 170-175 lbs of air pressure it probably would. The power of any air tool is directly related to the air pressure your working with. My brother tried to get it off his '05 Highlander (same engine) with a 1/2 in. and couldn't break it. Got a 3/4 in. at Harbor Freight and immediately broke it with the same compressor. I simply made a flat strap bracket about a foot long to lock the pulley and was able to get it loose with a 1/2 in. breaker bar. It's installed with Lock-tite when built and I ALWAYS go back at 150 ft. lbs. and lock-tite. I don't think it would hardly be possible to cross thread it. If you have a drill press and a couple of bolts and plenty of washers you won't need the 3/4 in. impact.
#10
Lexus Champion
#11
Pole Position
This is a simple tool that I made to remove the bolt...worked great, a 1/2 inch breaker bar removed the crank bolt with ease after having this tool attached to crankshaft harmonic balancer...The two bolts attach to harmonic balancer....and the socket for the crankshaft bolt goes thru the hole between the bolts...the handle of this tool hits the subframe of the car stopping the crankshaft from moving....
Last edited by thomas1; 01-22-13 at 06:33 AM.
#13
Lexus Champion
#14
Lexus Champion
This is a simple tool that I made to remove the bolt...worked great, a 1/2 inch breaker bar removed the crank bolt with ease after having this tool attached to crankshaft harmonic balancer...The two bolts attach to harmonic balancer....and the socket for the crankshaft bolt goes thru the hole between the bolts...the handle of this tool hits the subframe of the car stopping the crankshaft from moving....
#15
Pole Position
Hey it was all scrap in my metal pile...I would have done it differently if I had thought it out....Love my welder....But we both get it done...(old navy guy) had to fix things whatever it took....