In How To Remove Yanmar 3JH2E Heat Exchanger, Step-by-Step with Photos, reader John M brought up the orientation of the core assembly within the heat exchanger. There are three things to consider to properly place the core assembly.

In How To Remove Yanmar 3JH2E Heat Exchanger, Step-by-Step with Photos, reader John M brought up the orientation of the core assembly within the heat exchanger. There are three things to consider to properly place the core assembly.
This is a follow-up to How To Remove Yanmar 3JH2E Heat Exchanger, Step-by-Step with Photos.
Hopefully you never find yourself in a position where you need to replace your heat exchanger . But if you do, firstly, I’m sorry! Secondly, hopefully this article will help ease your pain.
These instructions are appropriate for the Parker Racor 500 series primary filter system. The details may differ for your situation, but the general principles apply.