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Fresh rebuild, slowly looses coolant pressure

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Old 04-03-22, 03:20 PM
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Fresh rebuild, slowly looses coolant pressure
I just finished my rebuild last night and got back to it today to pressure test the motor and after about 30 minutes it drops from 15 psi to 9 psi. Do I just need to go ahead pull the motor back apart for a possible pinched seal or is there some things I should check before I do that?

update: one of my housing freeze plugs i just installed was leaking a little bit so hopefully it’s just that
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Old 04-05-22, 10:39 AM
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Originally Posted by kudu
I just finished my rebuild last night and got back to it today to pressure test the motor and after about 30 minutes it drops from 15 psi to 9 psi. Do I just need to go ahead pull the motor back apart for a possible pinched seal or is there some things I should check before I do that?

update: one of my housing freeze plugs i just installed was leaking a little bit so hopefully it’s just that
Have you tested again after fixing the freeze plug?
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Old 04-17-22, 06:58 PM
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Originally Posted by Cardinell
Have you tested again after fixing the freeze plug?
sorry yeah I had some life stuff come up but yeah with the new freeze plugs it sealed up and didn’t drop pressure for an hour
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