Sea strainer bowl cracked .Marina fault?

[Long Island Boater]

I can’t tell if the strainer is made by Marine Hardware but if so, I have had 2 of them crack over the18 years we own our 390. I drain and leave the plug out every winter and still had them form cracks. The 3/4” bowl uses two different hole alignments depending upon the year the bowl was manufactured. My 2004 vessel uses the bowl for the 1” strainer. Same size bowl as the 3/4” but the holes are off ever so slightly on the newer years, such that you might think it works but you’d be forcing it and causing a crack. I’m not sure why anyone manufactures a clear bowl when you really can’t see much once they get dirty.

[Sofa King Fishy]

Originally Posted by Bacchus

Those bowls are known to crack after years of use.
If it wasn't replaced recently I will bet it is a coincidence. I have replaced a couple smaller and three larger engine bowls on my '08 MS with the same strainers.
If you havent replaced any bevsure to check the others carefully.

Agreed~ Oxidation & Gravity are taking us ALL down! If it’s an old part, it’s due.

[Thermo]

25 years lr so ago, Long ago…. Before I knew a cleat from an anchor, I winterized a brand new Catalina Yanmar that had an acrylic strainer. I was a little short on antifreeze and had first mate grab a couple of jugs from a local big box store. I didn’t read the labels well and ended up using methanol based (but still pink) antifreeze. The strainer bowl was laced with cracks well before the weather dropped below freezing. I’m sure your yard would not make that mistake but thought I would share that experience.

[High Wire]

How do you know it wasn’t cracked from previous years? Not worth arguing about.

[dutch-barge]

Originally Posted by SILENTKNIGHT

i though about the same issue about "how do you think he filled the strainer with antifreeze when the seacock was open?"
it couldnt have been done open..

SURE it could be done.....my strainers are above the waterline...
the raw water pumps sucks the water into the bowl int the engine cooling sytem

the strainer Inlet is on the top, so IF above the water line dry

[SILENTKNIGHT]

agreed, im turning the chapter on this. Already ordered the bowl.