My cranks are stuck

Related:
Create New Tag

1/7/2017 9:22 AM

I need help, my cranks a stuck an I've sprayed loads of wd40 in them but they won't budge, any ideas?

|

1/7/2017 9:50 AM

What type of cranks do you have? 8 or 12 or 16 spline? 2 piece or 3 piece? 48 spline? Post some pictures.

If you have a rubber mallet, here's my advice. Take the spindle bolt out, and lightly tap the crank from the opposite side, like this Photo

|

“Pegless and coaster is ultimate zen”
-Indiana Tom

1/7/2017 9:51 AM
Edited Date/Time: 1/7/2017 9:52 AM

It doesn't matter if it's on your drive side or non drive side, I've done it with both. Don't be hesitant to give it a few hard whacks, just be careful.

|

“Pegless and coaster is ultimate zen”
-Indiana Tom

1/7/2017 10:37 AM

They are 3 peice 48 spline I think, av tried tapping them but still nothing and both spindle bolts are out

|

1/7/2017 10:55 AM

Put the axle bolt half way in, and hit the bolt

|

1/7/2017 11:40 AM

grumpySteve wrote:

Put the axle bolt half way in, and hit the bolt

Will try that's in the morning thanks

|

1/7/2017 12:29 PM

grumpySteve wrote:

Put the axle bolt half way in, and hit the bolt

This and maybe spray a little Pb blaster in it and let it soak.

|

1/7/2017 12:31 PM

Sometimes you just have to beat the shit out of them

|

I love my bike but i hate myself
bike check

IG @curtis_cantbmxwell
@powersbikeshop
@kirolling

1/7/2017 12:36 PM

blaaaaaaaaa wrote:

Sometimes you just have to beat the shit out of them

Exactly this. Rubber mallets are the best most useful tool for bike maintenance.

|

My Ride
My Other Ride
I've sold stuff to Ecuadevil, LLURider, and Mario.villegas90 with no complaints.
IG: evildeadhands

1/7/2017 12:38 PM

Photo

Photo

Photo

|

1/7/2017 12:39 PM

I already beat the shit outta it but still nothing

|

1/7/2017 1:03 PM

If you keep smacking the crap out of it it will come off. A good penetrating oil will help too. If you put the bolt in the crank arm just a couple threads and a screw driver or pry bar on the back of the crank arm and pry a little and smack the bolt it will come off.

|

1/7/2017 4:29 PM

What you can do is find a bolt the same thread/diameter as the spindle crank bolt itself, screw it in a couple of turns, grab a hammer and a piece of timber and smack it until it budges, the timber is to protect to the spindle bolt.

|

1/7/2017 4:35 PM

Do you have a crank installation tool? you can use that instead of the bolt to beat on.

Let it soak for a little longer and keep adding more WD40 then try it again.


I had a problem similar to this years ago with my Sputnic cranks. I actually ended up taking both bolts out and riding without them in for like 2 weeks and they stayed tight the whole time haha but after that they came off after beating the fuck out of them with a rubber mallet

|

1/7/2017 4:38 PM

sundaybmxRR wrote:

Do you have a crank installation tool? you can use that instead of the bolt to beat on.

Let it soak for a little longer and ...more

Holy shit...

|

1/7/2017 5:58 PM

Enough lube and brute force, anything is possible.

|

1/7/2017 6:06 PM

grumpySteve wrote:

Put the axle bolt half way in, and hit the bolt

welfarebum wrote:

This and maybe spray a little Pb blaster in it and let it soak.

Seconded re PB Blaster.

It is more hardcore than WD40 etc, and is some nasty, jet-fuel smelling stuff that you don't want to use too often,
but soaking in that for a couple of days & it WILL work to get them off.

|



Frmrly BmxBos
Ref: Robinson79, aaron.samuel.green

1/8/2017 12:19 AM

Mychaylo wrote:

Enough lube and brute force, anything is possible.

That's what I keep telling the wife

|

1/8/2017 2:50 AM

Mychaylo wrote:

Enough lube and brute force, anything is possible.

grumpySteve wrote:

That's what I keep telling the wife

Love it

|

1/8/2017 8:37 AM

I tried bashing the bolt in to the spindle and still nothing

|

1/8/2017 9:09 AM

Have you tried it from the other side?

|

1/8/2017 11:07 AM

Have you tried turning it off, then on again? Sorry.

|

1/8/2017 11:24 AM

CHILDISHGAMBINO wrote:

Have you tried turning it off, then on again? Sorry.

Cheers for that

|

1/8/2017 11:25 AM

grumpySteve wrote:

Have you tried it from the other side?

Yeah I've tried both sides, considering just cutting them off now haha

|

1/8/2017 1:25 PM

JLeighton267 wrote:

Yeah I've tried both sides, considering just cutting them off now haha

Don't do that...

|

“Pegless and coaster is ultimate zen”
-Indiana Tom

1/8/2017 4:44 PM

use fire to get them off



|

1/8/2017 5:00 PM

As mentioned up-thread, get a crank arm puller. I use the Park CWP-7. Less than 14 USD. Worth every penny and then some.

|

1/11/2017 7:46 AM

I took it to my local bike shop and his puller couldn't latch on to anything to work, so guessing it's just not coming off

|

1/11/2017 8:06 AM

Heat them up then hit them off

|

1/11/2017 8:22 AM

JLeighton267 wrote:

I took it to my local bike shop and his puller couldn't latch on to anything to work, so guessing it's just not coming off

Sounds like there are no threads, or they're stripped—in either case you're SOL with a puller.

Get a torch (or whatever your people call it tongue ) and heat up the crank arm around the spindle, then go back to banging the snot out of it. If that doesn't work... die grinder.

|