Parts Guides

How the crankcase ventilation system works, why breather pipes fail, and what an oily oil cap really means.

When piston work is needed, why ring quality matters, and the OE brands for rebuild specifications.

Why modern head bolts are single-use, and the importance of matching new bolts to the new head gasket.

The rotating pulleys at the front of the engine — what each does and how they fail.

The static seals between block, head and ancillary components — how they fail, why MLS matters, and the OE brands.

When sump pans need replacement (rust, damage), and the right plug-and-washer combination to seal each oil change.

Crank seals, cam seals, oil pump seals — what fails, what to replace, and why fresh seals matter on a rebuild.

How oil pumps fail, what symptoms warn of trouble, and the OE brands that protect bearings and turbos.

Main bearings, conrod bearings, thrust bearings — what they do and how they fail.