Missing Spark Plug Cable Holder & Oil Leaks - Valley Cover and Valve Cover Gasket Replacement

Engineintermediate✓ OP Confirmed

Problem

Hole visible on top of the middle valve cover (spark plug valley cover area) where the spark plug cable holder tree was missing, along with oil leaks visible under the engine and transmission.

Visible hole on top of middle valve coverMissing spark plug cable holder treeOil present under engine and transmission

Root Cause

The spark plug cable holder tree (plastic nipple that holds HT leads in place) was missing, leaving an open hole in the spark plug galley/valley cover. Additionally, the valve cover gaskets were worn and leaking oil.

Confidence

Moderate confidence — Original poster confirmed this resolved the issue

View Original Thread →Posted July 2023 on SupraForums.com