Webasto pre heater plumbing
Also posted in the Defender section.
My name is Adam and I am new to the forum and as usual with newbies I have a question!
I am living in the UK but I am not getting much help with my question over here in the UK. I drive a 300Tdi 90 with 191,000 miles on the clock and still going reasonably strong!
I want to fit a Webasto or Eberspacher engine pre heater. Not a problem in itself , but nearly all of the information I can find says to plumb the pre heater directly into the inlet and outlet hoses of the heater matrix, at the point where the hoses exit the heater matrix. I personally don't think this will efficiently heat the engine block and cylinder head, as the Webasto pump would favour the short route into and out of the heater matrix. I believe the heat output of the Webasto should be plumbed into an area near the waterpump / front of the block and the retrieve of the Webasto can exit the output of the heater matrix. This I think would create a larger circuit that heats the entire engine.
I guess what I am asking you all is any of you with a 300Tdi and a Webasto, how is it plumbed in? and have you ever tested the temperature of the block and radiator after the pre heater has performed a full pre heat cycle on a cold day?
Apologies for the strung out description and question!