Engine - Ticking Noise After Cyl Head Gasket Replacement

SOURCE:
Honda Service News April 2003

TITLE:
Ticking Noise After Cylinder Head Replacement

APPLIES TO:
1999-03 Odyssey, 2003 Pilot

SERVICE TIP:
Don't let this happen to you! You've just replaced the cylinder heads on and you hear a ticking noise when you start up the engine. You may have inadvertently installed the wrong cylinder head gaskets! Some cylinder head gasket kits incorrectly got an 86 mm-diameter-bore gasket instead of the correct 89 mm-diameter-bore gasket.

Front Gasket Kit: P/N 06110-PGK-A11, H/C 6875470

Rear Gasket Kit: P/N 06120-PGK-A11, H/C 6875520



The ticking noise is actually the pistons hitting the head gasket as they cross top dead center (TDC). Double-check the replacement cylinder head gasket before you install it. If it's got a P8C stamped on it (P/N 12251-P8C-A01, H/C 6485775), it's the wrong gasket. If it's got a PGE stamped on it (P/N 12251-PGE-A01, H/C 6321491), it's the right one.