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Old 09-17-2006, 02:19 PM
M-HF950Cliff M-HF950Cliff is offline
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Question 477 or 534???

How do you tell a 534 from a 477 without pulling them down? Bought several nice running 3-axle U850 ,40,000 gvw. The engines have been R&R'd in each one several times. After steam cleaning, I didn't find any ID such as distributor tags. Thanks for your help!
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Old 09-18-2006, 12:02 AM
85e150six4mtod 85e150six4mtod is offline
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All I can find here is bore and stroke on a 534 being 4.50 x 4.20.

Scroll down to "vital statistics". One entry in here talks about what size truck got what motor. Yours should be 534s as those sound like fairly large trucks.
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Old 10-05-2006, 02:26 PM
Still in the 60's Still in the 60's is offline
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The 534 stroke was 4.20, the 477 was 3.75. Pull a spark plug, and stick in a very long bladed screwdiver. Carefully rotate the engine, marking top center & bottom center on the screwdriver shaft. Might not be precise, but close enough to tell if it is a 534.
Godd luck.
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Old 10-05-2006, 02:26 PM
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