Repair of a Single Flywheel Tooth on a Bulk Carrier in Canada

Our in-situ specialists recently completed yet another in-situ “tooth dentistry” repair. This particular repair assignment was carried out on a ten year old dry-bulk carrier in Canada. It was a small job that was quickly completed as it just involved the replacement of a single broken tooth on the flywheel of the vessel’s 50-bore main engine.

Two of our skilled in-situ specialists from the United States undertook the task. The process began with machining off the damaged tooth, which they did with the help of a portable milling machine. Following this, a prefabricated tooth, prepared in advance and grought along by our team, was accurately installed, ensuring a tight fit and seamless integration with the existing flywheel .

This successful repair underscores QuantiServ’s ability to provide efficient and reliable in-situ solutions, big and small.

View of the single broken tooth
The completed repair
The completed repair
Removal of the damaged tooth by in-situ milling
Removal of the damaged tooth by in-situ milling
Engine ready to be started up again
The engine is ready to be started up again

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Read more about our flywheel repairs – from changing just a few teeth to replacing them all!

Restoring All 90 Teeth on a large Flywheel

Our colleagues from QuantiServ China successfully restored all teeth on a flywheel

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Flywheel In-situ Repair on the US East Coast

Another successful flywheel repair assignment completed, in Florida, USA

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Flywheel Teeth Dentistry in Hong Kong

In-situ repair of a large 96-bore engine flywheel at Hong Kong anchorage

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In-situ Flywheel Repair in Mombasa, Kenya

In-situ Flywheel Repair on a 3’400 TEU Container Vessel in Mombasa, Kenya

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Four-stroke Cylinder Head Valve Seat Bore Repair

Our reconditioning centre in Vancouver has just carried out furnace brazing of 13 pieces of 32-bore four-stroke engine cylinder heads for Canada’s premier ferry operator.

The valve seat bores were seriously damaged by cavitation and corrosion. Machining to over-size was not possible anymore because this had already been done during past overhauls and the maximum diameter had already been reached.

QuantiServ’s unique process starts with the generous removal of any damaged material around the valve seat bores. Thereafter steel sleeves are soldered in in a vacuum oven before finishing off the heads by NC machining of the valve seat bores. Standard-size valve seats can then be installed, followed by pressure testing of each cylinder head.

QuantiServ’s furnace brazing process is applicable to four-stroke cylinder heads of any engine type with a cylinder bore diameter of > 200 mm. It is patented word-wide and classification approved (LR / ABS). Classification certificates are available on request.

Condition of the cylinder heads before reconditioning:

 

Condition of the cylinder heads after reconditioning, before installation of the valve seats:

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It’s All in a Month’s Work for QuantiServ’s In-situ Machining Crew!

On board various ships and oil rigs, in power plants and in factories: Far from being idle during the holiday season, during the month of July our in-situ specialists were maintaining and repairing our customers’ equipment in 26 different countries, across four continents. No other in-situ machining company has such global reach and completes more projects than QuantiServ. Wherever the location, whatever the damage – it’s all in a month’s work for us!

Explore the interactive map below and discover what services our in-situ engineers have been providing to our customers during the month of July 2017.