surely the drilling of holes is only if the bypass is blocked off to keep a small flow over the thermostat bulb.
Drilled Thermostats
Started by
croc7
, Sep 14 2022 06:06 AM
Best Answer Spider , 17 September 2022 - 12:45 AM
Even without holes, when the Thermostat is closed, the warmer coolant will always rise to the higher parts of the coolant circuit - right where the Thermostat is.
If they were meant to have holes, they would be available that way.
19 replies to this topic
#16
coopertaz
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One Carb Or Two?
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Posted 16 September 2022 - 10:37 AM
#17
Lplus
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One Carb Or Two?
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Posted 16 September 2022 - 06:59 PM
surely the drilling of holes is only if the bypass is blocked off to keep a small flow over the thermostat bulb.
Yep, that's correct. One of my cars has an A+ 1275 with no bypass and three holes drilled in the thermostat plate, the other mini is an 1100 with a bypass and an undrilled thermostat.
#18
ThermalEvent
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Mini Mad
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Posted 16 September 2022 - 07:15 PM
I drilled my thermostat as per Minispares recommendations and it took 15-20mins to get up to temp. Installed one without and now its 5 mins... I won't ever drill one again and I have no bypass.
#19
Spider
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Posted 17 September 2022 - 12:45 AM Best Answer
Even without holes, when the Thermostat is closed, the warmer coolant will always rise to the higher parts of the coolant circuit - right where the Thermostat is.
If they were meant to have holes, they would be available that way.
#20
nicklouse
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Posted 17 September 2022 - 05:45 AM
surely the drilling of holes is only if the bypass is blocked off to keep a small flow over the thermostat bulb.
Yep, that's correct. One of my cars has an A+ 1275 with no bypass and three holes drilled in the thermostat plate, the other mini is an 1100 with a bypass and an undrilled thermostat.
Again not needed.
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