Authorized Yanmar Marine Engine Dealer
Yanmar Diesel Repair And Maintenance On The Chesapeake Bay
Norton Yachts provides marine diesel engine service for Yanmar engines from our yard on Broad Creek in Deltaville, Virginia: maintenance, repair, overhaul, installation, and repower. Certified Yanmar diesel technicians work on site, and warranty work on the engines we sell is done in house, directly for the owner.
Certified Yanmar technicians on site · Yanmar spare parts sold in house · Sail and power service since 1948
Yanmar Diesel Repair
A Yanmar usually tells you what is wrong before it quits. Our technicians start with the symptom, then test to confirm the cause:
Diagnosis means testing, not guessing: battery load, glow plug resistance, compression, and fuel system pressure and leaks. Our guide to why a marine diesel smokes black goes deeper on that symptom.
Yanmar Diesel Maintenance
Yanmar marine diesel maintenance runs on engine hours, with the calendar as a backstop. These are typical intervals; your engine's manual sets the schedule for your model:
A sailboat that mostly sails may log few hours, so the once-a-year rule does the work. A boat that motors through summer calms reaches the hour marks first. Either way, an engine that sits all winter still ages, which is why the fall layup covered in our boat winterization services matters. The rest of the boat's upkeep sits under our boat maintenance services.
Local Conditions
The Bay is hard on engines in particular ways. Warm, brackish water in summer works the raw-water side, where impellers and heat exchangers earn their keep. Calm days put sailboats on the engine for hours nobody planned. And in fall, warm days and cold nights breed condensation in fuel tanks, which is why water in the fuel filter spikes in October and November.
Salt air also gets into starter connections and glow plug wiring, so a Yanmar that started all summer can balk on the first cold morning. Testing the starting system before cold weather arrives catches most of it. Wiring and charging faults go to the same yard, under our mechanical, electrical, and plumbing services.
Dealer Service
Norton Yachts is an Authorized Yanmar Marine Engine Dealer, and the marine diesel engine service behind that name is done by Certified Yanmar Diesel Engine Technicians on site. The work covers engine sales, installations, repairs, overhauls, and repowers, and we sell spare parts for Yanmar diesels.
Because we own and operate the yard, installation and warranty work on the engines we sell happens in house, directly for the owner, with no outside shop in the middle.
Engine Trouble On The Bay
Norton Yachts sits on Broad Creek in Deltaville, where the Rappahannock River meets the Bay, so a boat with a sick engine has a short trip to a certified Yanmar shop. If the engine quits underway, our marina's transient slips make a handy stop for any kind of engine trouble.
For a hiccup rather than a breakdown, our mobile service team can troubleshoot the engine at your slip, and anything that needs parts, tooling, or a haul comes into the yard. Phone the service department at (804) 682-3227 and say what the engine is doing; you'll hear which route fits.
Overhaul Or Repower
A well-kept marine diesel can run 5,000 to 10,000 hours, and some pass 15,000, so hours alone don't condemn an engine. Compression does the talking: a compression test shows whether worn rings, cylinders, or valves are costing the engine its margin. Low readings can mean anything from a valve adjustment to cylinder head work to a rebuild or a replacement engine, and the results tell you which.
The same checks protect buyers. Before you buy a used boat, our service team can inspect the engine: running hours, an oil sample, compression, injector condition, and the cooling system. A 20-year-old engine with 800 hours is often a better buy than a 5-year-old one with 3,000. If a repower is the answer, winter, with the boat already on the hard, is the best time to do it.
In The Yard
First, the technician asks what the engine has been doing and for how long, then tests rather than guesses. You hear what was found, with an estimate, before any repair starts. Once you approve, the repair is made, the engine is run to confirm the fix, and anything coming due soon gets flagged.
Early scheduling helps, especially in the fall and spring rushes. Ring (804) 682-3227 or use the request form, and have your engine model and hours handy if you know them.
FAQs
Marine diesel engine service at Norton Yachts covers Yanmar diesel maintenance, diagnosis, Yanmar diesel engine repair, overhaul, installation, and repower. Certified Yanmar diesel technicians do the work on site, and Yanmar spare parts are sold in house.
Yes. The Norton Yachts service center is an Authorized Yanmar Marine Engine Dealer, staffed by Certified Yanmar Diesel Engine Technicians.
Warranty work on the engines we sell is done in our own yard, directly for the owner.
Typical Yanmar marine diesel maintenance intervals are oil and filter every 100 to 150 hours or once a year, fuel filters every 100 hours or once a year, coolant every 2 to 3 years, and valves and injectors every 1,000 to 2,000 hours.
Your engine's manual sets the schedule for your model.
A diesel that cranks but won't fire in the cold usually has weak glow plugs, a battery that has lost capacity, thick oil, or air in the fuel system.
Salt air corrodes glow plug wiring, so testing the starting system before cold weather arrives catches most of these. If a fresh battery doesn't fix it, a compression test checks for internal wear.
Black smoke means more fuel than the engine has air to burn. The cheapest place to start is the air filter and intake, and growth on the prop or hull can overload the engine too.
Brief black smoke on a hard throttle from a cold engine is often normal. Smoke that is sustained or getting worse should be diagnosed.
White smoke while the engine cranks usually means fuel is reaching the cylinders without igniting, which points to glow plugs or low compression. A technician can test both.
For an engine hiccup, yes: our mobile service team troubleshoots at your dock or slip.
Repairs that need parts, tooling, or a haul come into the yard in Deltaville.
Norton Yachts is on Broad Creek in Deltaville, where the Rappahannock River meets the Bay. Certified Yanmar diesel technicians work on site, and our marina's transient slips are a stop for boats with engine trouble underway.
Yes. Norton Yachts sells spare parts for Yanmar diesel engines through its service center.
A well-kept marine diesel can run 5,000 to 10,000 hours, so age and hours alone don't decide it. A compression test shows how much life is left in the engine, and low readings are the signal to compare a rebuild against a repower.
Winter, with the boat already on the hard, is the best time to do the work.
Yes. Our service team can inspect the engine before you commit: running hours, an oil sample, compression, injector condition, and the cooling system.
An older engine with low hours and good records is often a better buy than a newer one that has been run hard.
Yanmar is our specialty and the engine in most of the boats we sell. Our service center also maintains Volvo Penta engines.
Get In Touch
Call (804) 682-3227, Monday through Friday, 8:00 a.m. to 4:30 p.m., or visit the Boat Service Center.
