We talked with Mickey Hale from Cometic Gasket to see if you can, in fact, reuse an MLS head gasket. The reason behind this is: once the gasket is heat cycled, the embossments will not spring back to where they were originally.
Do you need to Retorque Cometic head gaskets?
In short, at least here in 2020, the answer is no, you don’t have to retorque head fasteners, maybe. The best way to know for sure is to read the head gasket manufacturer instructions.
Where are Cometic head gaskets made?
Concord, Ohio
Housed in a 70,000 square-foot, state-of-the-art R&D and manufacturing center in Concord, Ohio, Cometic Gasket has maintained its deep roots in the powersports industry while expanding to service the Domestic Automotive, Sport Compact, V-twin, Marine, Diesel, Agricultural, Industrial and Stationary Power markets.
Are graphite gaskets good?
Gaskets with a graphite core dissipate heat, preventing gasket burnout. They have excellent compressibility, can withstand high temperatures, and won’t creep, cold-flow, or become brittle. Graphite coatings allow for gasket movement without damage.
What is a Cometic head gasket?
Cometic’s ‘MLS’ (Multi-Layer Steel’) gaskets are 3-piece head gaskets that are made up of a stainless steel center sandwiched by two viton-coated spring steel embossed outer layers for a seal that can withstand the shearing forces created in the head gasket environment.
Are copper head gaskets better?
Because of its durability, copper gaskets are commonly used on high performance street/strip engines. Copper provides good resistance to blowouts because copper naturally conducts and distributes heat evenly, which minimizes warping and allows for a strong seal even on rough or damaged surfaces.
Who owns Cometic gaskets?
Cometic Gaskets became wholly owned by the Gorman family in 2013. Today the business finds its home in a 70,000 square-foot facility located in Concord, Ohio. The state-of-the-art facility houses both Research and Development and a manufacturing center with 120 employees. Cometic now offers over 85,000 SKUs.
Do Cometic gaskets need sealant?
MLS Head Gasket Installation Cometic Multi-Layer Steel (MLS) head gaskets go on dry because they are coated with a sealant. Adding an additional sealer can hinder the performance of an MLS head gasket.
Do graphite gaskets need sealant?
Graphite seals and gaskets retain their properties at temperatures as high as 450oC, and have some other very useful sealing characteristics. Graphite is a form of carbon where the atoms are arranged in layers or sheets. This slipperiness or low coefficient of friction is useful in gasketing or sealing.
How do graphite gaskets work?
Graphite gaskets are small circular components that acts as a mechanical seal. It is used to fill the space between two connecting surfaces or parts. Often, no matter how close you put the two surfaces together, gaps can occur.
