jwnall
Moderator Emeritus
Tried to change the oil on a Perkins 4.236 for the first time today. It was a failure, and I cannot figure out why. I've had it changed by someone else a couple of times, but decided to do it myself this time (haven't had the boat all that long). I used to change the oil on the Yanmar in my sailboat and never had a problem -- just stuck a tube down the dipstick and pumped it out.
But on the Perkins I pumped out about 2-1/2 quarts and then it only pumped air. I know that the oil was at MAX on the dipstick, so there should have been about 6 quarts in there, plus some in the filter.
Is there some sort of trick to it? Is going down the dipstick the proper technique on a Perkins? The tube down the dipstick was pushed down until it stopped. Could there be some sort of obstruction? Perhaps use a smaller tube?
Any thoughts, speculations, welcomed. I'm going to try the same thing on the other engine (twin engine boat) and see if it does the same thing.
But on the Perkins I pumped out about 2-1/2 quarts and then it only pumped air. I know that the oil was at MAX on the dipstick, so there should have been about 6 quarts in there, plus some in the filter.
Is there some sort of trick to it? Is going down the dipstick the proper technique on a Perkins? The tube down the dipstick was pushed down until it stopped. Could there be some sort of obstruction? Perhaps use a smaller tube?
Any thoughts, speculations, welcomed. I'm going to try the same thing on the other engine (twin engine boat) and see if it does the same thing.