KawasakiTrax Community
Tech Information => General Help => Topic started by: JDmatt on November 24, 2012, 03:59:15 PM
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I'm looking for tips on how to remove this bearing support cup thing from the bearing on the driveshaft - '80 Invader. Any suggestions? I've been soaking in with PB blaster, but just can't come up with a good way to work it out.
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pry bar block of wood and a BFH usually gets the job done
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is that a little hole drilled into the part you need to take off?
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looks like corrosion.
I heard that acetone and a touch of ATF works better than WD40, PB Blaster. Kroil, etc.
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Copied from another site but interesting...
Penetrating Oils
Machinist's Workshop recently published some information on various penetrating oils. The magazine reports they tested penetrates for break out torque on rusted nuts.
Below listed, a subjective test was made of all the popular penetrates, with the control being the torque required to remove the nut from a "scientifically rusted" environment.
Average torque load to loosen
No Oil used ................... 516 pounds
WD-40 ..................... ... 238 pounds
PB Blaster .................... 214 pounds
Liquid Wrench ...............127 pounds
Kano Kroil .................... 106 pounds
ATF - Acetone mix............53 pounds
The ATF-Acetone mix is a "home brew" mix of 50 - 50 automatic transmission fluid and acetone. Note this "home brew" released bolts better than any commercial product in this one particular test.
Our local machinist group mixed up a batch and we all now use it with equally good results.
Note also that Liquid Wrench is almost as good as Kroil for 20% of the price.
ATF-Acetone mix is best, but you can also use ATF and lacquer thinner in a 50-50 mix. (ATF=Automatic Transmission Fluid)
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There is a hole in it - it seems to be placed in the middle so I assumed it was supposed to be there for a needle attachment for a grease gun or something like that.
Are there any downsides to the ATF Acetone mix? Is there a chance it will remove paint, decals, etc?
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Absolutely! most paint has either acetone or some similar solvent in it and acetone is also used in fingernail polish remover, and used to clean up fiberglas resin.
The dearing on the end of the drive shaft is supposed to be a sealed bearing so it should be OK with the mixture. But as long as it is apart, I'd put a new bearing in there
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I use the AFT and acetone mix all the time.
Works great.
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I wasn't worried about the bearing, I'm worried about spilling the stuff on other parts of the sled.
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I use the AFT and acetone mix all the time.
Works great.
Same here, except I use a little more complicated version:
•1 part ATF
• 1 part Kerosene - deodorized, K1
• 1 part Mineral Spirits
• 1 part Acetone
This is a widely known homebrew bore cleaner, called "Ed's Red". Works great on all type of "guy projects". The Kerosene and ATF are great creeping agents. Many of the materials will dissolve crud and gunk (even plastic fowling in gun barrels).
Keep tightly capped in metal or glass jar (the acetone will evaporate quickly if open and the mix can degrade plastics over time).