W
Walter Parelli
Guest
" Any thoughts out there on wi
" Any thoughts out there on winterizing a raw-water cooled engine via antifreeze instead of draining?
I've always drained engines at season end, and never had a problem, but recently heard advice that, given the angle of the engine mounting, some pockets of water may not drain fully from an engine. (Admittedly, remembering and finding all of the drains and removing hoses is time consuming and risky itself.) The advice went on to say that the only completely sure way to avoid catastrophic internal freezing is to hook up a hose to the cooling water pick-up pump, and draw in a solution of antifreeze from a bucket. The engine is raw-water cooled (1965 Chris Craft 431 Lincoln), but runs only in fresh water, so salt corrosion should not be an issue.
How would one know when the engine has "enough" antifreeze in it to prevent freezing - when the engine kicks the solution out of the exhaust, or is there some other trick? About how many gallons of solution is needed for this operation? This sounds like it ought to be relatively simple, but I've never done it, and the stakes are high! Thanks in advance. "
" Any thoughts out there on winterizing a raw-water cooled engine via antifreeze instead of draining?
I've always drained engines at season end, and never had a problem, but recently heard advice that, given the angle of the engine mounting, some pockets of water may not drain fully from an engine. (Admittedly, remembering and finding all of the drains and removing hoses is time consuming and risky itself.) The advice went on to say that the only completely sure way to avoid catastrophic internal freezing is to hook up a hose to the cooling water pick-up pump, and draw in a solution of antifreeze from a bucket. The engine is raw-water cooled (1965 Chris Craft 431 Lincoln), but runs only in fresh water, so salt corrosion should not be an issue.
How would one know when the engine has "enough" antifreeze in it to prevent freezing - when the engine kicks the solution out of the exhaust, or is there some other trick? About how many gallons of solution is needed for this operation? This sounds like it ought to be relatively simple, but I've never done it, and the stakes are high! Thanks in advance. "