Duffdog

Hi,

So before you scream "SEARCH!!" , I already tried and every method I could find failed. I would like to avoid taking out the entire engine for this bolt, so please don't suggest that.

I have a chain pulley holder, so thats not moving, but I just tried a 64" breaker bar with all my weight and the breaker bar just bends. Also, the starter simply isn't strong enough to get it off. This truck is from the east coast and every single bolt was rusted, so its probably not surprising that this bolt is also rusted. I have heard of people using blow torches to heat the bolt, or heat around the bolt? but how exactly does one do that?

Are there any other suggestions that I have missed?


Thanks!

big bear

Have you soaked it with PB Blaster ?

muddmadness

I swear by it, I have considered by stock in the Co. I also recommend you try it

93 Toyota 4x4

OH THIS IS EASY, put a breaker bar and socket on the nut. wedge the breaker bar between the frame and steering gearbox ( I think), bump starter and remove the bolt and pulley. I put cardboard in front of the AC thingy to protect it.

toyospearo

Like 93 Toyota 4x4 said above.
I've done literally a hundred with that method. Works every time.
Make sure and unplug your ignitor before you bump start it! You don't want the thing to fire up.

Teuf

He said he tried the starter, and it was not strong enough.
Get a longer stronger cheater bar.

toyospearo

so he did

Duffdog

Longer than 64"? Do they make 3/4" 8 foot long breaker bars?

Sturmcrow

You can rent impact wrenches and air compressors from rental places. I had to do that on my old Honda after I broke 2 sockets trying get a crank bolt off. It still took several minutes, but eventually it broke loose.

That was with Iowa salt too.

toyospearo

charge your battery, get a 1/2" drive 6 point socket on that breaker bar and make sure extends out to the frame, put the breakerbar/socket on the pulley bolt, ratchet it over to the frame rail, disconnect the ignitor, get in the truck and turn the key.
I live in the rust bucket of the world and I have NEVER had that pulley bolt cause me any issue. I have done hundreds of these this way.
Once in a great while I got out the torch and gave that pulley bolt a quick heat up. But that was few and far between.

Gamefreakgc

Some auto stores like Auto zone might even have tool loan programs where you don't have to pay anything. If not, I think Ace Hardware lets you rent air compressors and such.

Yot@_bruce

I've ran into this several times as well...I ended up buying a Schley #64300 pulley holder from amazon for $60. Works great and now I don't fear the infamous crankshaft pulley bolt. Hope this helps

snobdds

I've been there, nothing seemed to work including a big impact and heat.

I just cut a relief cut in the bolt flange to release the spring tension of the bolt. Then it will come right off, but you will need a new $10 bolt from the dealer.

Just make sure to use a small die grinder and cut off wheel and don't nick the harmonic balancer. If you do nick it bad enough, you will need to get a new/used balancer.

93 Toyota 4x4

OOOPS! forgot to mention disconnecting the coil...very important!!!


your starter or battery must be shot.

My nest question...are you gonna remove the oil pan as part of this procedure???? If so wait to remove the crank bolt. Drop the oil pan and wedge a block of wood between the crank and block, then remove the bolt.

removing the oil pan is a PITA w/ a 4WD

distortedvoice

Can I use the starter trick while my head is off?

snobdds

No...

RJR

Why not? Seems to me like the engine crankshaft will turn just fine with the head off. Why would it care if the valve train is there or not?

snobdds

I didn't know engines could fire without spark plugs...Shows what I know.

RJR

The starter trick doesn't involve the engine firing. It simply uses the torque of the starter motor, which is considerable at stall, to break loose the crankshaft bolt. In fact, as is pointed out in earlier posts in this thread, you want to disable the ignition because you do not want the engine firing while doing this.

I figure it takes about 100 or so ft-lbs of torque to crank one of these Toyota engines under normal circumstances, based on compression and piston area. The starter motor can probably generate 2-3x that much at stall, which is why it's a pretty effective method for breaking loose the crank bolt. As the OP has found out, however, sometimes it takes even more than that.

RustBucket

iTrader: (1)

Kroil is also a great penetrating oil if you're inclined to try the chemical route. Usually works better than PB blaster in my opinion.