Crank Bolt Won't Thread In!!?? FIXED!!!!!

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JRA2000TL

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Trying to put this car back together; put the t-belt sprocket on and was going to thread the crank bolt in a bit and use the socket to turn it and line it up so I could put the CPS on.....bolt seems to be too short and the threads won't grab....even just threading the bolt into the snout with no sprocket on doesnt work....this doesn't make sense. It came off just fine. The sprocket and dampener shouldn't have anything to do with it as they go around the outer diameter of the crank....I can't get the bolt to screw INTO the crank. Threads are not boogered.

Help! I'm outside now trying to get it put back together!
 
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JRA2000TL

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Everyone else can't get theirs off but I can't get mine back in.....this sucks!
 

shotime1994

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Stick your finger in the snout and feel the threads. Did you damage the crank with the puller?
 

JRA2000TL

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Stick your finger in the snout and feel the threads. Did you damage the crank with the puller?

Threads seem to be fine and the puller threads back in just fine as well. This ****** me off. I want to get this car back together today. The crank bolt doesn't appear damaged.....now I'm stuck and don't know what to do. It's like the bolt just won't grab the threads in there or like it's the wrong size....just won't thread in.
 
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Off Road SHO

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What did you use to remove the harmonic dampener? Something flat that rested on the face of the crank snout or something pointy that went down into the bolt hole?

Did you accidently grab the wrong bolt?

If you clean off the crank snout AND the inside of the pulley, with a light coating of oil, the pulley will slide on all easy like.

Tom
 

JRA2000TL

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I used the standard harmonic balancer pulley I borrowed from the parts house...it threads in the hole and the bracket lays flat against the dampener and there are 2 screws that thread in through the bracket. The balancer pulley long thread still threads in just fine....it's the bolt that won't grab and start threading. Someone on here told me the ends of the thread are boogered. Here's a pic.

Crankbolt
 

SHOhopefull

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Everyone else can't get theirs off but I can't get mine back in.....this sucks!

Too easy... LOL

The pic is a little blurry, but it does look like the first couple of threads are a little boogered...


Only thing I could think of is try to find a thread chaser that size...
 

jayro

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I used the standard harmonic balancer pulley I borrowed from the parts house...it threads in the hole and the bracket lays flat against the dampener and there are 2 screws that thread in through the bracket. The balancer pulley long thread still threads in just fine....it's the bolt that won't grab and start threading. Someone on here told me the ends of the thread are boogered. Here's a pic.

Crankbolt

The first threads look like they may be messed up. Try running into through a die and see if it cleans it up. I'd be a little leary of using a puller that threads into the snout. I've always used the one that has a foot that sits on the front of the snout, doesn't go into it. Good luck
 

Off Road SHO

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I used the standard harmonic balancer pulley I borrowed from the parts house...it threads in the hole and the bracket lays flat against the dampener and there are 2 screws that thread in through the bracket. The balancer pulley long thread still threads in just fine....it's the bolt that won't grab and start threading. Someone on here told me the ends of the thread are boogered.


it threads in the hole It threads into a hole that already has threads in it?

The balancer pulley long thread still threads in fine? What does that mean exactly. The balancer pulley doesn't have threads; it is slotted with a keyway; you just push it straight on, no threading at all.

Tom
 

JRA2000TL

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I used the standard harmonic balancer pulley I borrowed from the parts house...it threads in the hole and the bracket lays flat against the dampener and there are 2 screws that thread in through the bracket. The balancer pulley long thread still threads in just fine....it's the bolt that won't grab and start threading. Someone on here told me the ends of the thread are boogered.


it threads in the hole It threads into a hole that already has threads in it?

The balancer pulley long thread still threads in fine? What does that mean exactly. The balancer pulley doesn't have threads; it is slotted with a keyway; you just push it straight on, no threading at all.

Tom

I used something like this, Tom

http://www.binbin.net/photos/sealey-power-tools/sea/sealey-harmonic-balance-puller-set-46pc.jpg

That long threaded rod (far left in the pic of the kit) threads into the crank snout (crank itself where the bolt would normally go). I used that to remove the damper pulley....and it threaded in and out just fine (even after removal of the pulley too--I checked it), so I know the threads "in the crank itself" are good. I know the sproket and damper don't have threads...sorry bad description I guess.

I have one possible machine shop that may be open tomorrow, and I'll see if they can repair those thread ends; if not, I have a WTB posted for a crank bolt. The ends that are boogered are probably why it will not thread into the snout. I was going to thread the bolt in (with the sproket on) and use a ratchet to turn the motor to time it and install the cps between the vanes/gap it, etc.
 
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RAYJAY

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The first threads look like they may be messed up. Try running into through a die and see if it cleans it up. I'd be a little leary of using a puller that threads into the snout. I've always used the one that has a foot that sits on the front of the snout, doesn't go into it. Good luck

x2 here you...... if you used the threads in the crank those threads are most likely the one your having problems with, you never use the threads to pull anything.....

if no foot or the foot on the puller is to small i will use a socket to span the shaft and still clear the pulley
 

mrecoolgar

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The threads have been deformed but...
When I read your 1st post I was led to think the damper wasn't seated on the crank snout enough.
In other words, the damper needs to be tapped onto the snout further.
Was the head of the bolt flush with the damper or was it sticking further out?
 

Ishodu

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All you need to do its file off that first thread. File in the direction from the head of the bolt to the tip. This will remove the damage to the tip but it will not hurt the bolt at all.
 

JRA2000TL

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Thanks Marcel, the threads in the hole (crank) should be fine as the long "threaded rod" for the puller went in and out all the way w/o issue. I think it's just the tip of the bolt that's causing it to "not grab" and thread in.
 

Ishodu

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Ya if the install tool worked in the hole its for sure the issue with that thread on the tip of the bolt
 

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