after a little more research (reading workshop manual)
- coolant mix states 30%-60%
-RADIATOR CAP VALVE OPENING PRESSURE CHECK
1.
note Be sure that the cap is clean before testing. Rust or other foreign material on the cap seal will cause an improper reading.
Use a cap adapter to attach the cap to the tester.
2.Increase the pressure until the indicator of the gauge stops moving.
Limit: Minimum 84 kPa
Standard value: 94 - 122 kPa = 13.63lb psi - 17.694 lb psi
(so cap was probably 17 lb psi) others can remove cap (when safe to do so) and check if it has a rating on it.
*** so going up 3 lb psi will increase the boiling temp. approx. 6 Deg C in temp.*** (to 135 Deg C)
3.Replace the radiator cap if the reading does not remain at or above the limit.
N.B just had a look on ebay and supercheap ... ratings for tritons/challenger raditor cap are around the 13 psi / 90 kpa
*** Beware the ratings on the radiator cap *** ( unless 20lb psi / 137.895 kpa )
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- coolant mix states 30%-60%
-RADIATOR CAP VALVE OPENING PRESSURE CHECK
1.
note Be sure that the cap is clean before testing. Rust or other foreign material on the cap seal will cause an improper reading.
Use a cap adapter to attach the cap to the tester.
2.Increase the pressure until the indicator of the gauge stops moving.
Limit: Minimum 84 kPa
Standard value: 94 - 122 kPa = 13.63lb psi - 17.694 lb psi
(so cap was probably 17 lb psi) others can remove cap (when safe to do so) and check if it has a rating on it.
*** so going up 3 lb psi will increase the boiling temp. approx. 6 Deg C in temp.*** (to 135 Deg C)
3.Replace the radiator cap if the reading does not remain at or above the limit.
N.B just had a look on ebay and supercheap ... ratings for tritons/challenger raditor cap are around the 13 psi / 90 kpa
*** Beware the ratings on the radiator cap *** ( unless 20lb psi / 137.895 kpa )
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