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  #1  
Old 5th April 2021
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Default kerosene flush process?

hey guys -

re: flushing the oil tank...

I have an old shovelhead manual that says remove the tank b/c if you don't
Quote:
"sludge broken loose from the tank and not removed during flushing will pass through the main oil feed line and into the oil pump; there it will clog oil passages and cause engine seizure."
What do you think? Is this a legit concern? Like I said the book is for shovels but I guess the concern applies across all models... unless it doesn't apply at all (?).
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Old 5th April 2021
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I think it's probably the best way to make sure you have a clean tank, and no debris going into the lines.
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Default

Thanks Steve I think you're right. I've got an oil leak - nothing on the ground just on the frame, swingarm and hoses.

I hear the early Evo oil tanks have a reputation for cracking, so I prob should pull it anyway and see. I wish they hadn't discontinued the upgrade kit but I understand it's possible to find the parts individually and put it together yourself.
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Old 7th April 2021
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if some one has allowed it to get to that point, shame shame shame!
but i tell you a true story
a friend of mine had a cherry dodge with a slant 6 with 70+k miles. he bought it second hand and the valve area had a lot of carbon so he decided to use engine flush. he followed the instructions to the "T". next morning he went to work and only made 25 miles before the engine started knocking. after inspection, the engine flush loosened up way more than he thought and wound up at the pump inlet screen.
so an ounce of prevention is worth more than a pound of cure.
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Old 20th June 2021
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Hey bustert - late reply I know but I wanted to say thanks for telling the story that is exactly what worries me. I guess it’s pull the oil tank or risk big trouble. Before I do I need to re-read the oil tank upgrade thread I started awhile back, see if I can piece it together. Thanks again!
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Old 20th June 2021
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wouldn't disconnecting the line going to the pump accomplish the same thing as removing the tank?run a hose to a drain pan.
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