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Thermostat
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Topic: Thermostat (Read 1935 times)
Not Happy Jan
nsw-club
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Aussie adventure
Thermostat
«
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November 19, 2019, 05:59:13 PM »
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After a very long time I have got the old girl fired up again. My big thanks to all who have helped me on this forum. Pete Mallaby, Ellis French, Rob AKA Ardiesse, and anyone else I have forgtotten.
Not the same engine ... one I bought as Im going to rebuild ( again) the engine that was in it at a later date.
Trying to tune etc the temp got over 200 deg at idle for not very long. It is a new thermostat .... ill replace it anyway but are there cooler thermostats available??
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Port Macquarie NSW
Not Happy Jan
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Re: Thermostat
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Reply #1 on:
November 19, 2019, 06:02:05 PM »
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Port Macquarie NSW
ardiesse
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Re: Thermostat
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Reply #2 on:
November 19, 2019, 10:14:58 PM »
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Considering how hot it's been over the last few days, you're excused if the temperature got over 200 (F) at idle. But the boiling point with a 7 psi radiator cap is 226 F (I think), so there's some headroom.
A lumpy cam will tend to make the engine run hotter at idle too. Make sure your ignition timing is advanced. Lean idle mixtures won't help either.
I'd suggest using a 160 F/70 C thermostat. Tridon makes a high-flow-rate thermostat, but I don't know if they come in 160 degrees though.
A late EK or EJ fan might help - coarser pitch blades, with a notch taken out of the trailing edges so not to hit the harmonic balancer.
Radiator core not blocked, I hope? You may also have to use a three-row radiator core. And also the 7424869 head gasket.
Rob
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