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Old 06-29-2020, 01:12 PM   #1
Scooby Newbie
Member#: 160264
Join Date: Sep 2007
Chapter/Region: Tri-State
Location: S.I, NY
95 20G'd EJ255 GC8

Default Phantom coolant leak, could use some advice

Hey everyone,

Just dropped in a used built block into my GC and now i'm experiencing a small water leak, coming out from the front of the block from what looks like a gap between the oil and water pump.

No flow when cold, only a drop per 7-8 seconds when at operating temp.

Thinking it was the water pump weep hole or sealant issue, I pulled the timing and resealed the water pump with a different (used) unit, new gasket and sealant on both the block and pump. Drip was exactly the same before and after resealing.

coolant hoses to oil cooler are solid, no drip there.

Checked headgaskets and there is definitely nothing coming out of them.

Would anyone have any advice on what else I could check?

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