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What year did series 60 14L come out?
The guy Ron I know that fried his Mulitiplex with 24v it is a 2006 Holiday Rambler Navigator it has a Detroit in it, It physically looks like a 12.7L but he says it’s 515 HP??
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12 Replies
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It appears the 12.7 L engine came into being in 1987, and the 14 L came out in 2001.
I do not believe a 12.7 L engine was available from Detroit with more than 470 HP. The 515 HP engine was a 14 L engine.
The engine has a label with its torque, HP and displacement.
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My 04 Marathon was 12.7.
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Jon my 12.7 is stamped 500 hp have Friend 2001 CC is 515 hp
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12.7 – 500
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Interesting about the HP. I could not find any Detroit Diesel publications that listed anything greater than 470 HP for a 12.7
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Craig Wickham has a 96 Royale and his is 500 hp, he said it has a larger turbo and different pump.
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From Wikipedia
History
When it was introduced in 1987, the Series 60 was the first heavy-duty diesel engine with fully integrated electronic controls.[2] Detroit Diesel prescribed overhaul intervals of 500,000 miles (800,000 km), then raised that to 750,000 miles (1,210,000 km) after more experience was gained with the new engine.[3]
In 1993, the 11.1 L (677 cu in) version was rated at 350 bhp (261 kW) (but would produce 15 more if the cruise control was engaged).
12.7L
The Series 60 was also available in 12.7 L (775 cu in) at the time, which was created by a longer stroke of 6.3 in (160 mm).[4] Both engine sizes were also used in truck and tractor-trailer applications.
In 1998, the 11.1-liter Detroit Diesel Series 60 was discontinued.[5] Once the 11.1-liter Series 60 was discontinued, the 12.7-liter Detroit Diesel Series 60 became the motorcoach application. Starting in the late 1990s, Neoplan made the Series 60 as an available engine for their high-floor and low-floor articulated buses – the AN460A and AN460LF. Detroit Diesel began making Series 60 marine engines in 1999, with wider availability starting in 2000.[6]
14L
In 2001 the bore and stroke increased and the engine displacement rose to 14 L (854 cu in), with an increase in power output to 575 hp (429 kW) and a torque increase to 1,850 lb⋅ft (2,508 N⋅m).
In 2004 the 14-Liter engine became the dominant platform in Freightliner over the road sleeper trucks and changed the ECM to a DDEC V. The 12.7L engine was favored in buses for its better fuel consumption.[5]
In 2007 the 12.7-liter Detroit Diesel Series 60 was discontinued. Once the 12.7-liter Series 60 was discontinued, the 14-liter Series 60 replaced it. By 2008, Detroit Diesel had produced one million Series 60 engines.[7]
In 2007 – 2010 (2008 -2011 trucks), the Detroit Diesel 14L engine was modified to meet new emissions standards and went to a dual ECM configuration (DDEC VI). This engine ran higher compression, higher injector pressure and a DPF exhaust filter. The block and crank remained the same as the older 2004-2006 engine models.
In 2011 the series 60 engine was discontinued and replaced by the DD15 engine.
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Here is a picture of the rear most tag on my 96 Liberty with 12.7L DD 60s. As you can see, mine is 470hp. It was manufactured in 1995. I would think Craigs would be the same? He can reach in the rear passenger side engine compartment door, just above the 50DN alt, and below the induction tube, and take a picture of it just below the valve cover.
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Interesting: Here is an old DDC pdf that shows some interesting specs for the 60 series. HP rating as high as 825. Rated hp was sometimes achieved at 2300 rpm in the commercial marine, pleasurecraft marine, and petroleum industries.
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The 825hp applications were marine specs. The early units had some aftercooler sea water leak problems. Otherwise pretty solid. Shows that in a boat you should not cruise above 75-80% load if you want your engine to last.
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Dan and Barb, your engine is probably a 2003 since your bus is an 2004. DD got more out of them as time went on with DDEC 4&5, variable geometry turbo. etc.
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