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<blockquote data-quote="eyexer" data-source="post: 209240" data-attributes="member: 315"><p>They have cages on the rod caps. Most of these designs are due the rpm’s they run. Cars and pickups can get away with less engineering because they don’t run 6k rpm. Everybody thinks they don’t last like car engines but they actually do when you figure the number of revolutions they make compared to cars. For example this motor had at least 1200 hours on it. That would be equivalent to probably 3600 hours or more on a car engine. We’ve had six dodge 5.7 hemp motors at work that have had to have the cams/lifters/push rods/rockers replaced at anywhere from 36000 to 70000 miles. They don’t hold up. Wearing cam lobes way down causing push rods to fall out of rockers. And what’s worse is you can’t change the cam bearings on em because they’re cast into the block lol. It’s a throw away motor. Honda actually uses the same blocks they have in they’re Cars from what I’ve read. And the load these outboards see vs what a car sees is quite higher. Takes a lot of torque to push a 21’ boat verses a car down the road. By the looks of the inside of this motor, had it not had broken reeds twice it would make 5k easily.</p></blockquote><p></p>
[QUOTE="eyexer, post: 209240, member: 315"] They have cages on the rod caps. Most of these designs are due the rpm’s they run. Cars and pickups can get away with less engineering because they don’t run 6k rpm. Everybody thinks they don’t last like car engines but they actually do when you figure the number of revolutions they make compared to cars. For example this motor had at least 1200 hours on it. That would be equivalent to probably 3600 hours or more on a car engine. We’ve had six dodge 5.7 hemp motors at work that have had to have the cams/lifters/push rods/rockers replaced at anywhere from 36000 to 70000 miles. They don’t hold up. Wearing cam lobes way down causing push rods to fall out of rockers. And what’s worse is you can’t change the cam bearings on em because they’re cast into the block lol. It’s a throw away motor. Honda actually uses the same blocks they have in they’re Cars from what I’ve read. And the load these outboards see vs what a car sees is quite higher. Takes a lot of torque to push a 21’ boat verses a car down the road. By the looks of the inside of this motor, had it not had broken reeds twice it would make 5k easily. [/QUOTE]
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