Testing Stainless Steel Mercruiser Risers

[tank1949]

I have located a couple of the SS Mercruiser risers online. My engines are closed cooled Chevy 383 "strokers" with salt water only going through heat exchanger and out risers. I have heard complaints about ss risers leaking. Is there anyway to test them before putting on boat? Thx!

 

[achris]

Test them just the same way you're test cast iron elbows... If they're good, you have a bargain...

 

[Scott Danforth]

inspect them with a bore scope on the inside where you cant see with a flashlight

fill them with acetone and look for leaks

they are nothing more than a 4" sanitary weld elbow around a 3 or 3-1/2" weld elbow with a bit of sheet metal and welding. not much too them really.

 

[tank1949]

inspect them with a bore scope on the inside where you cant see with a flashlight

fill them with acetone and look for leaks

they are nothing more than a 4" sanitary weld elbow around a 3 or 3-1/2" weld elbow with a bit of sheet metal and welding. not much too them really.

They damn sure aint cheap!