A similar topic has been covered before, but it was regarding hot engines. Some engines, however, have oil fil tubes that drop right to the crank case and never touch the valvetrain. So, is it bad to add cool or room temperature oil/additives to a valvetrain that is at operating temperature? I know all about "thermal shock", but I'm wondering if adding room temperature oil to a hot valvetrain would even be enough to do this.
Back at a shop I used to work at, we would punch a square tube, 1/4" thick-walled, into a die and it would come out glowing red, ~700 degrees F. We would then immediately spray it with COLD water until it could be handled with gloves, or to about 100 degrees F... that's a drop of about about ~600 degrees over the timespan of less than 1 minute and those tubes never cracked. As an aside, water also carries/distributes heat better than oil does. So I'm guessing that adding fluids to a hot valveteain won't hurt a darn thing. I just wanted to make sure, because I may have done this yesterday... with some Mos2...
Back at a shop I used to work at, we would punch a square tube, 1/4" thick-walled, into a die and it would come out glowing red, ~700 degrees F. We would then immediately spray it with COLD water until it could be handled with gloves, or to about 100 degrees F... that's a drop of about about ~600 degrees over the timespan of less than 1 minute and those tubes never cracked. As an aside, water also carries/distributes heat better than oil does. So I'm guessing that adding fluids to a hot valveteain won't hurt a darn thing. I just wanted to make sure, because I may have done this yesterday... with some Mos2...
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