Quote:
Originally Posted by Ricky Bobby
So Doru, effectively replacing with the 1.2/1.4 venting cap will allow for more coolant loss (as that pressure might be reached more frequently) but should avoid ruptures to an extent because the venting pressure is brought down?
Basically the cooling system is going to vent whether you like it or not, and would you rather have 30 psi or 18/20 when that happens?
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To reach 1.2 bar DIFFERENTIAL pressure, the coolant should be above 126°C - that's in an M54B30 engine. That's pretty high.
You should NOT loose any coolant with a 1.2bar or 1.4 bar cap. If you loose coolant, it means your coolant went above 126°C (1.2 bar cap), which in turn is a different problem (stuck t-stat comes to mind)
The 1.2 bar cap I purchased from GAS.
here is a short reading about the pros of 1.2 bar cap
And here is a debate about the subject (1.2/1.4 bar vs 2 bar cap). This will shed some light whether to go this route or not.