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1995-2002 Range Rover P38A
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417 Posts
Discussion Starter #1
Just wanted to share this pic of an aftermarket heater core 2 ys old. I replaced it with a oem valeo from a low milage Range Rover.
The Valeo model was much heavier and solid than the aftermarket. You can see that the aftermarket developed cracks
around the orings, mabey from bumping the pipes from inside the engine bay. Anyways thought it would last much longer.
Had to do the bend the frame down trick to swap. Also what the heck is that plastic in there?
Thx
20190506_110343.jpg
 

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1995-2002 Range Rover P38A
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111 Posts
That plastic are pieces in each tube of the heater core. After I replaced my heater core I cut the bad one in half just to have a look inside. I don't know what function they provide. I guess they help with the flow.
 

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1995-2002 Range Rover P38A
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If they are in each tube it could be to induce turbulence and improve heat transfer. This commonly done in various ways in industrial applications. A way to get more performance.

They could also be to balance flow between each tube so the core works efficiently and uniformly.

Or they could just be left over from manufacture ?
 
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