7MGTE Head Gasket Fix After Block Decking - Metal Shim Gasket Method

Engineadvanced✓ OP Confirmed

Problem

After machining/decking a 7MGTE block to address head gasket issues, too much material was removed from the deck surface, putting it out of spec and risking head gasket failure. O-ringing the block was considered but is an outdated and unreliable approach for the 7M platform.

Blown head gasket (BHG)Block deck surface out of spec after machiningNeed to compensate for material removed during resurfacing

Root Cause

Excessive material removed from the block deck surface during machining, requiring compensation to bring the deck height back into spec before installing a new head gasket.

Confidence

Moderate confidence — Original poster confirmed this resolved the issue

View Original Thread →Posted July 2020 on SupraForums.com