Posted by JRSutton on July 27, 2011 at 06:09:32 from (75.130.109.233):
In Reply to: Rusty Cams posted by Jim Paterson on July 26, 2011 at 20:16:22:
I'm assuming the tractor's been sitting?
If it's been running and they're rusty, you've got problems!
But assuming it's been sitting...
The only problem with a corroded lobe is that it could wear the lifter a little more quickly than a well machined lobe would. But, unless it's REAL bad, you're talking thousanths of an inch over many years. Which is nothing.
If you ever do change the cam, you'd have to change the lifters too anyways, so you're not risking anything by running it as is, even if it's real bad.
So I wouldn't worry at all. I would however make sure they're well lubed before starting it. The most damage that would come from them would happen in the first few seconds of running them dry.
After that, you can forget about them.
You should probably change the oil sooner than you normally would after the first start up, just to be safe.
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