Location: Ludlow, MA
Joined: Feb 4, 2009
Points: 45
New castviron gearbox for older 924050 Original Message Feb 20, 2011 4:12 pm
I am installing a new gearbox o my Ariens 924050. I am replacing the original Aluminum box after close to 30 years. To my question ~ I cannot budge the fan (impeller) from the original worm shaft. A brand new o ne is under $100. Should i just install a new one and give up on getting the original of the shaft? I have tried pb blaster and a torch without luck. Ideas, suggestions?
Location: Marlboro MA
Joined: Dec 8, 2007
Points: 1328
Re: New castviron gearbox for older 924050 Reply #1 Feb 20, 2011 4:47 pm
Some take days of soaking with PB and banging. Some just dont seperate. A snowblower dealer around here will charge $20-$30 depending on how much they have to work on it.
Re: New castviron gearbox for older 924050 Reply #2 Feb 20, 2011 10:18 pm
An improvement over PBlaster or Liquid Wrench for a lot less money: Mix equal parts acetone and ATF (the plain old red stuff). Apply with a chip brush. Besides working better than the spray cans, it's much cheaper and you can soak parts in it.
The downside is the acetone evaporates fast so it doesn't store well, but if you mix it in a clean salsa jar and mark the level on the outside you can add just acetone next time to bring it back to the same level.
Who the hell let all the morning people run things?
Re: New castviron gearbox for older 924050 Reply #4 Feb 21, 2011 11:21 pm
Sure, but they all do. If you look at the MSDS for any of the commercial products, you'll see that penetrating oil is nothing but a light oil that has been mixed with a solvent which will help it penetrate. Acetone is a great solvent, and ATF is a high detergent oil. Machinists have been using this mixture for years.
BTW, reading the MSDS will also explain why WD-40 is not a good lubricant.
Who the hell let all the morning people run things?