Marine Diesel Maintenance Tips

Marine Diesel Maintenance Tips

Quick Tip: Don't use auto engine belts; they can't survive in a marine engine room.

Marine Diesel Maintenance Tips

Quick Tip: To check your thermostat, run thread through the valve and boil it in water until it opens.

Marine Diesel Maintenance Tips

Quick Tip: When working with a socket wrench, put a piece of paper towel in the socket to hold the bolt in place, so it won't fall into the bilge.

Marine Diesel Maintenance Tips

Quick Tip: Taking something apart? Snap step-by-step photos with your cell phone.

Marine Diesel Maintenance Tips

Diesel 911
The 10 most common problems found in engine service calls: *Water, growth or sludge in the fuel
*Clogged sea strainers
*Damaged impellers
*Old antifreeze
*Loose belts
*Plugged mufflers
*Clogged fuel filters
*Loose alternators
*Corroded electrical connections
*Blown fuses

Marine Diesel Maintenance Tips

Don't Do It Yourself
What not to touch during engine maintenance: Valve Adjustments
All diesel engines require periodic valve adjustments. Mack Boring teaches boaters how to do this if they want, but it's a very technical hands-on job, and if done wrong, it can have disastrous consequences. Best to leave it to the pros. Retorquing Cylinder Heads
Your engine's cylinder heads need to be retorqued after so many hours of operation (see your manual). But it has to be done to exact specifications or else it will harm the engine. Another situation where it pays to pay the pros. Turbochargers
These require very particular service specifications and should be left to the shop. ECM and Common-Rail Diesels
For electronically controlled and common-rail engines, stick to the basic service points and let a trained technician plug in his computer for the rest.