octagonfarms Posted August 10, 2019 Report Share Posted August 10, 2019 I would like to disconnect my heater from the water circuit on my TR7. Re-route the hosing so the heater is not part of my cooling system. What are the bad issues associated with this change? How much effect will it have on my cooling temps? Thanks Quote Link to post Share on other sites
acaie Posted August 11, 2019 Report Share Posted August 11, 2019 I had to bypass the heater on my TR7v8 due to a leak at the matrix, probably the pipe seal(s). The cooling temperatures dropped appreciably. I have a feeling the heater matrix was bunged up since the heater never worked very well. Bad issues are as one might expect - car is cold in winter and demisting. Otherwise fine. It's an easy job to make a u-bend to join the inlet and outlet together with domestic 15mm pipe and fittings. Quote Link to post Share on other sites
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