Preparation is an important part of making your new exhaust setup last. Follow these simple steps to insure that you get the best seal. Doing things right the first time will help protect your engine from water damage and having to go back and re-install later. Remove paint from gasket surfaces on your new parts using a razor blade and lacquer thinner.

• Marine Exhaust Manifolds And Risers

Exhaust Risers. Marine Exhaust. Fabricating solutions that can be adjusted to provide an optimal installation package for your exhaust. Clamp Products; Exhaust. Exhaust Risers - Marine Engines: Boats and Yachts Maintenance, Repairs and Troubleshooting: Whether. Marine inboard engines have exhaust risers. EXHAUST MANIFOLDS, RISERS AND EXHAUST ELBOWS Page 2 of 3 JANUARY 2001 99-10 3. Look at the condition of the metal around the exhaust outlet in the casting.

A gasket scraper can also be used, but be careful to not damage or mar the surfaces. Use compressed air to thoroughly blow debris out of exhaust passages and water jackets. Depending on the casting method, many new manifolds and risers come with bits of casting pieces left in their water jackets. This is not a sign of a defective part; it is normal and part of the casting process. It is a good idea to blow these pieces out prior to installing.

Marine Exhaust Manifolds And Risers

Make sure the gasket surfaces on your head or heads are also clean, and scrape as necessary (be careful not to get debris down the ports). If reusing bolts, water fittings, or other parts, make sure they are clean of rust and in reusable condition.

It is usually not a good idea to reuse lock washers. Never reuse gaskets; they should always be replaced.

When purchasing, examine the item picture and description to see if the part comes with a gasket or not. With all of your exhaust parts clean and ready to install, follow these steps and don't forget to torque down all bolts/nuts to the correct torque setting. Overtightened bolts can lead to stripped threads, cracking, or bolts breaking, and can void any warranty that the part carried. Manifold-to-head gaskets should be installed dry; do not use any gasket sealer, silicon, or other compounds. Riser and elbow gaskets can be installed with a Permatex non-hardening exhaust gasket sealant. It is not required though, unless you have the thin paper gaskets (none of my risers ship with thin paper gaskets). Do not use anti-seize or lubricants on the threads of bolts or studs unless instructed to do so.

Do not use stainless steel or grade 2 bolts except for in specific applications. They are too weak for general manifold and riser usage. Free mono to stereo converter. If installing studs, use a red thread locking compound on the threads that will seat in the casting, so that the nut can be screwed on and off without the stud moving.

Follow your original manufacturer's service manual for specific torque settings when installing manifolds, risers, or elbows. If you do not have it, contact an original equipment dealer in your area (look up your engine manufacturer's website for a list of dealers).

Be sure to torque evenly and in steps.