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#1
18-10-19, 21:28
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Or a Bypass valve. It lets the oil bypass the cooler when the oil is cold and thick. The valve is set with a 2.5 psi differential, without going to the manual.
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Bluebell Carrier Armoured O.P. No1 Mk3 W. T84991 Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. Dodge WC55. 37mm Gun Motor Carriage M6 Jeep Mb #135668 So many questions.... 
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#2
20-10-19, 04:00
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General info question.
Can you run the oil through the cooler circuit without that bypass valve being in place? Not an easy part to find.
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#3
20-10-19, 06:34
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Yes, I believe you could because the oil is different today. I say that with reservation because the type of oil multigrade versus mono and the choice of grade and climate will have a bearing.
Important: You need to make sure everything is in order so that you get an oil flow. at the in and out ports.
__________________
Bluebell Carrier Armoured O.P. No1 Mk3 W. T84991 Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. Dodge WC55. 37mm Gun Motor Carriage M6 Jeep Mb #135668 So many questions....
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#4
20-10-19, 09:05
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Being in Australia means my oil will never get cold and thick, so that's a plus.
Worth putting the oil pressure sender onto the input side of the oil flow from the cooler then I reckon. Just to keep a closer eye on it.
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#5
20-10-19, 10:44
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Glen, What sort of carrier do you have? The English and Canadian carriers use a fitting that directs a percentage of the oil to the cooler and lets some continue through the block galleries, while the Australian carriers have a plug screwed into the block in the cross drilling that makes the full flow of oil go through the cooler (or the bypass valve) The difference is in the fittings that screw into the block. The CTL7142 fitting is the restrictor in the riveted carrier engines
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Bluebell Carrier Armoured O.P. No1 Mk3 W. T84991 Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. Dodge WC55. 37mm Gun Motor Carriage M6 Jeep Mb #135668 So many questions.... Last edited by Lynn Eades; 20-10-19 at 10:46. Reason: clarity
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#6
20-10-19, 10:56
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I have an LP2A.
So the full plugging of the cross passage way to direct all oil through to the cooler. Not having found a bypass valve for mine, I was going to run the full oil flow directly through the cooler. My main concern was if the oil pump in the sump had the ability to move all the oil through the cooler system efficiently.
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#7
21-10-19, 07:25
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Glen, I believe the cross drilling plug has a hole in it to allow a partial flow direct to the gallery, but I am not sure about the details on the LP2/ 2a, so you need an answer from someone who knows their way around them.
Does anybody know if there is a reference to this plug/restrictor in the parts book? Anyone know the details?
__________________
Bluebell Carrier Armoured O.P. No1 Mk3 W. T84991 Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. Dodge WC55. 37mm Gun Motor Carriage M6 Jeep Mb #135668 So many questions.... Last edited by Lynn Eades; 21-10-19 at 07:39. Reason: questions
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