Head Gaskets Archives - UnderhoodService
Subaru EJ25 Head Gasket Problems

Most of the EJ head gasket failures occur around the 100,000-mile mark and start as a slow oil or coolant leak.

VW VR6 Head Gasket Replacement

The oddest things about the VR6 are that the narrow angle between cylinders allows the use of just one cylinder head for the six cylinders, and the timing chain is located between the block and transmission.

VIDEO: Diagnosing Head Gasket Leaks

Andrew Markel shows how to test if an issue is truly related to a head gasket leak and not something else. Sponsored by MAHLE.

Fel-Pro PermaTorque MLS Performance Head Gaskets Now Available For Ford Modular V8 Engines

The company says these new gaskets bring Fel-Pro brand’s latest race-winning multi-layer-steel technology to high-output 4.6L and 5.4L engines.

Timing Chain Replacement Diagnosis And Repair

Often maintenance neglect, head gasket replacement or related valvetrain issues will require the timing chain to be serviced. If you are replacing the timing chain, you need to look at all the related components. Keep reading for timing chain replacement best practices.

Head Gasket Repair And Diagnostics

Head gasket repair sits atop the Mount Rushmore of challenging repair jobs a technician may be faced with. Dealing with head gasket issues isn’t for the inexperienced tech. Although these jobs can bring a nice profit, the work can be complex and time-consuming. Here are some things every tech should know before tackling a head gasket repair job.

Gasket Guide: Match A Sealant With Every Type of Gasket

Cork/Composite Gaskets Sealants: Cork and composite gaskets can seal a variety of underhood applications from valve covers to carburetors. The type of sealant used with these gaskets depends on a variety of factors. First, you must consider if the gasket needs to remain flexible. Second, you need to consider the temperatures the sealant will have

Clevite gasket
Improving the Head Gaskets, Fasteners Relationship

The relationship between head gaskets and head bolts is an intimate one. The clamping load applied by the head bolts is what allows the head gasket to maintain its seal. For this marriage to last, there has to be constant tension – not too much, otherwise the bolts may stretch or break, and not too

head gaskets and fasteners