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- Feb 19, 2020
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Just be aware when heating it usually takes more than a propane bottle torch. Here I use a ACE/OX torch to quickly heat the hub to expand it. This quick heating only slowly transfers to the crankshaft so work as quickly as you can. A propane torch just heats too slowly and the crankshaft will heat sink it and will expand just as much.
Since this is a MTD rider it is best to remove the engine as the engine deck tabs are usually in the way of most pullers. Here I use bearing separator puller, heat, and an impact to remove these stuck on pulleys. I have yet to heat damage a seal; of course, I have experience in doing this by having to remove many pulleys over the years.
As for penetrating fluid I will be trying a new one in a week or so that claims to work a lot better than PB Blaster. Only testing will prove if this is true or not so I not mentioning the product by name until I get to try it myself. I already got one project to try it on.
Since this is a MTD rider it is best to remove the engine as the engine deck tabs are usually in the way of most pullers. Here I use bearing separator puller, heat, and an impact to remove these stuck on pulleys. I have yet to heat damage a seal; of course, I have experience in doing this by having to remove many pulleys over the years.
As for penetrating fluid I will be trying a new one in a week or so that claims to work a lot better than PB Blaster. Only testing will prove if this is true or not so I not mentioning the product by name until I get to try it myself. I already got one project to try it on.