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URGENT. diff swap help

General Tech Talk

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Posts: 67
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URGENT. diff swap help

Post by 76patrol »

so i swapped in my 4.6 hp today. when im coasting it whines kinda loudly. all backlash settings were good. should i b worried. under load it is quite and smooth. please help. cheers in advance ray
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Re: URGENT. diff swap help

Post by joeblow »

76patrol wrote:so i swapped in my 4.6 hp today. when im coasting it whines kinda loudly. all backlash settings were good. should i b worried. under load it is quite and smooth. please help. cheers in advance ray
backlash has very little to do with noise during driving. what did the pattern look like on the crownwheel when covered in bearing blue before fitting?
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Re: URGENT. diff swap help

Post by bogged »

as asked on patrol forum - are they new gears?
or are they gears out of something else?
As said they may have a bad wear pattern in them.
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Post by 76patrol »

thanks guys. they are brand new. pattern was good as per manual. they are itialian gears. i dont care if i blow them out in the bush but id like to feel safe driving on the highway.
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Post by Jacked »

did you set your preload correctly and install new bearings?
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Post by 76patrol »

new bearings yep and i thought my preload was fine but will check it out when i remove it in the next day or so. thanks
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Post by oozuk »

check you pattern again or get a diff shop to check the diff pattern, it sounds like you've set the pinion height up incorrectily causing incorrect tooth contact ;)
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