TF coolant flow
Feb 23, 2013 21:02:06 GMT
Post by Jerry & Di on Feb 23, 2013 21:02:06 GMT
I'm showing this diagram to perhaps help someone who has a TF160 in particular, and has funny heater/temperature reading problems.
The TF 160 has an oil/coolant intercooler which was plumbed in by MG-R in what I think is a funny way.
For the last few years I've been running with the arrangement below.
It doesn't matter if the intercooler blocks up, which some do due to lack of maintenance, as it has it's own little circuit. In fact, in can be totally blocked and the main radiator and heater circuit will work as intended. My heater is plumbed into the large bore bypass circuit, so it will always receive coolant at the current bypass circuit temperature.
It's also easier to bleed, as the pipework is of larger bore, less fiddly. Both jiggle valves work as normal, although not shown due to my lack of computer drawing skills
The PRT does not need the "pressure" part now, as the bypass circuit is so large bore that there are no restrictive pressure/flow problems at higher revs.
I've used the PRT under the washer bottle since 2006 with no problem whatsoever, and this arrangement was introduced from 2008-2010.
I hope it gives some food for thought for those with "strange" heating problems. I don't claim to be an "expert", just a bit of logic and trial and error has produced for me a simple and efficient cooling arrangement.
The TF 160 has an oil/coolant intercooler which was plumbed in by MG-R in what I think is a funny way.
For the last few years I've been running with the arrangement below.
It doesn't matter if the intercooler blocks up, which some do due to lack of maintenance, as it has it's own little circuit. In fact, in can be totally blocked and the main radiator and heater circuit will work as intended. My heater is plumbed into the large bore bypass circuit, so it will always receive coolant at the current bypass circuit temperature.
It's also easier to bleed, as the pipework is of larger bore, less fiddly. Both jiggle valves work as normal, although not shown due to my lack of computer drawing skills
The PRT does not need the "pressure" part now, as the bypass circuit is so large bore that there are no restrictive pressure/flow problems at higher revs.
I've used the PRT under the washer bottle since 2006 with no problem whatsoever, and this arrangement was introduced from 2008-2010.
I hope it gives some food for thought for those with "strange" heating problems. I don't claim to be an "expert", just a bit of logic and trial and error has produced for me a simple and efficient cooling arrangement.
