Beta Marine 25 Heat Excanger Cleaning

[SomeGuyInaShirt]

I just pulled the tubestack out of my Beta 25 and noticed a slight buildup (very minimal) on it as well as in the cylinder that houses the stack. I don't have time to adress it properly so I just soaked the stack in Salt Away and gave it a good scrub. It's not back to 100% however so I'm wondering how I can remove all the crud when I get back. Do I basically have to run diluted muriatic acid through the entire cooling and raw water sides followed by a baking soda and water solution to neutralize the acid? I want to do this right as I never want to have to buy another engine again.

[Lepke]

The easy way is take the tubestack to a radiator shop. Otherwise soak it in a solution like Barnacle Buster or Rydlyme.

[abroadreachtrvl]

I clean our Beta 38 heat exchanger yearly (400-600hrs). I just submerge the end caps and tube stack in a Barnicle buster or similar. Haven't noticed buildup elsewhere.

I would not run muriatic (hydrochloric) acid through the cooling system. It's incompatible with many of the rubber and stainless parts.

https://www.graco.com/content/dam/gr...pGuideEN-B.pdf