12 Valve Engine and Drivetrain Talk about the 12V engine and drivetrain here. This is for 1994-1998.5 engine and drivetrain discussion only.

filter bypass

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Sep 11, 2004 | 11:14 AM

#1

msing

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From: saskatchewan Canada

filter bypass

Do the fleetguard oil filters (dont remember the no.) we use have a bypass valve in them and at what psi do they open? Its got me thinking with oil being cold and 85 psi bypass could be open . If there is one.

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Old

Sep 11, 2004 | 07:15 PM

#2

infidel

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From: Montana

No bypass in the correct filters for Cummins. There is a oil pressure regulator to the front of the filter housing on the block that bypasses excess pressure back to the oil pan.

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Old

Sep 11, 2004 | 10:56 PM

#3

msing

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From: saskatchewan Canada

Thanks infidel so no chance of unfiltered oil up in to engine .

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