JochemsTR Posted February 3, 2020 Report Share Posted February 3, 2020 For my second engine, I am considering not using the heater water valve and tubing. Can I remove the heater valve and plug it? Rimmer offers an plug. Or is it recommended to have some kind of circulation thru the cylinder head by leaving the heater valve open? by the way....is there any reason for keeping the heater at all? Jochem Quote Link to post Share on other sites
Z320 Posted February 3, 2020 Report Share Posted February 3, 2020 Your wife? Sorry me Jochem, you threw that ball.... But seriously, you drive the engine at sunny days with the heating turned off - so for the engine it should be no problem to plug it. But you know, also during summer there are some days with cold and rainy weather - and with the windows covered with moisture. Shure, our TRs heating is not the best but it can help you to deal with this situation? Ciao, Marco Quote Link to post Share on other sites
Mike C Posted February 3, 2020 Report Share Posted February 3, 2020 (edited) I recently joined the heater valve to the pipe at the side of the block with some 1/2 copper tube and the existing hoses.- bypassing the heater matrix entirely. My matrix started leaking about 2 weeks ago when I opened the heater valve to flush out air after a coolant change. Pulling the dash apart to get at the heater matrix, as you know, is not a job to start in mid summer's driving season. To be honest, in Australia I've used the heater in anger maybe 5 times in 22 years- so repairing the heater matrix is not a high priority. I leave the heater valve open in case circulation and avoiding cooling "dead legs" is important . Edited February 3, 2020 by Mike C Quote Link to post Share on other sites
JochemsTR Posted February 4, 2020 Author Report Share Posted February 4, 2020 (edited) I really want to use the Rimmer offered plugs....I just need to understand the circulation from engine to head and its return Edited February 4, 2020 by JochemsTR Quote Link to post Share on other sites
Mike C Posted February 4, 2020 Report Share Posted February 4, 2020 57 minutes ago, JochemsTR said: I really want to use the Rimmer offered plugs....I just need to understand the circulation from engine to head and its return If it helps I'd expect competition TR6 engines would have their heaters removed and the ports plugged. Maybe a forum member that races TR6's can confirm. Quote Link to post Share on other sites
Dave McDonald Posted February 6, 2020 Report Share Posted February 6, 2020 On 2/4/2020 at 6:17 AM, Mike C said: If it helps I'd expect competition TR6 engines would have their heaters removed and the ports plugged. Maybe a forum member that races TR6's can confirm. I can confirm that my race TR6 has no heater. The heater control valve at the back of the cylinder head has a plug and similarly a plug in the back of the water pump housing where the long steel pipe would connect to feed the heater valve. Dave McD Quote Link to post Share on other sites
JochemsTR Posted February 9, 2020 Author Report Share Posted February 9, 2020 Thank you Dave ! Quote Link to post Share on other sites
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