Another Gear Ratio Question

huskbro

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Join Date: Jul 2006

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#1

Another Gear Ratio Question

07-30-2006, 10:11 PM

I have a 1984 Mercrusier 898 with damaged gears in the upper gear assembly. I need to know what gear ratio to use. I live in Nebraska.

The boat has a 198 HP 305 V8 Chevy Engine.

Should I also replace the lower unit? Very little metal shavings made it down through the lower unit so I think it will be ok, but what do you think?

Thanks....

Looking forward to getting back on the water!
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Technical Support

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Join Date: Nov 2003

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#2

07-31-2006, 09:35 AM

Even with damaged gears you should be able to count the teeth. If it is 20-22 then it is a 1.47. If it is 24-24 then it is a 1.65.

As far as reusing the old lower, you should be okay, but I would try to flush it out to get any possible metal out of it.

Tech Support

Brunswick Corporation is the original equipment manufacturer (OEM). Sterndrive Engineering, Inc. (or SEI) is not affiliated with the Brunswick Corporation and is not authorized to sell or service Brunswick products.
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