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Old 09-16-2012, 04:46 PM   #1
Rich Franklin
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Default Engine Life Expectancy 6V92 8V92 & 60 Series

How many "hours"/"Miles" should a 6v92 last compared to the 8V92 and 60 Series engines? I understand the answer would have to assume good or average maintenance. Does anyone know?
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Old 09-16-2012, 06:28 PM   #2
NewellCrazy
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Rich,

8V-92TA and 6V-92TA on average should last 500,000 miles before first overhauls. If you take an average of 50mph, then that works out to be 10,000 hours between overhaul. Course, there is scheduled maintenance between those numbers. On 2 stroke engines, the rack should be run every 100,000 miles; main and rod bearings should be rolled in every 200,000 miles; injectors should be pulled and pop tested every 300,000 miles along with having the blower and turbo overhauled. All in all, the 2 stroke engines are maintenance intensive, compared to the new 4 stroke engines that just require an initial valve adjustment at 60,000 miles, then when ever power loss is felt-and no scheduled injector or bearing replacement in 1.2 million miles.
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Old 09-17-2012, 12:39 AM   #3
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That is the norm whether or not it is in a motorcoach, marine application or industrial - preventative maintenance is the key factor. We always like the 6v92 over the 8v92. Our family still operates oil rigs with 671's and 6v92 still going strong. My favorite two-stroke is the 6v92T and in one of these Newell's will run and run with plenty of power. They bump the horsepower up double on these same engines in a marine application and then are put under one hell of a strain. So - preventative maintenance is your key to longevity.

Note: Make sure you use the proper oil. We buy everything from Napa Auto Parts.
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Old 09-17-2012, 02:12 AM   #4
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I agree! our 6V92 is a great power plant, and it would be very hard to duplicate.
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Old 09-17-2012, 03:39 AM   #5
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Default Engine Life Expectancy Cummins VTA 903

Quote:
Originally Posted by NewellCrazy View Post
Rich,

8V-92TA and 6V-92TA on average should last 500,000 miles before first overhauls. If you take an average of 50mph, then that works out to be 10,000 hours between overhaul. Course, there is scheduled maintenance between those numbers. On 2 stroke engines, the rack should be run every 100,000 miles; main and rod bearings should be rolled in every 200,000 miles; injectors should be pulled and pop tested every 300,000 miles along with having the blower and turbo overhauled. All in all, the 2 stroke engines are maintenance intensive, compared to the new 4 stroke engines that just require an initial valve adjustment at 60,000 miles, then when ever power loss is felt-and no scheduled injector or bearing replacement in 1.2 million miles.
And the other Newell engine, the Cummins VTA 903 engine, what life expectancy and maintenance requirements would you estimate it would have?

Sincerely,

voyager1 (Robert in Cape Coral, Florida)

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Old 09-17-2012, 05:10 AM   #6
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Hi Robert,

The VT-903's should make it between 400-500K miles with out a problem with proper maintenance. Other than normal service maintenance you should roll the bearings at about 250K miles. The engines were naturally aspirated and produced about 300 Hp on average with some pushing upwards of 450HP depending on your configuration. Overall a good hard working engine in my book.
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