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Old 09-02-2008, 01:18 AM
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Default When is an Optimax broken in?

We are soon to depart on a river trip covering 1,200 miles round trip. My 200 Opti only has 2 hours on it and I was wondering when it would be considered broken in?
Test runs have me running 3,800-4,000 rpms with a full load of fuel and gear on the boat.
What type of oil/fuel ratios do you think I will be burning at these rpms? I am hoping for close to 100 to 1.
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Old 09-02-2008, 05:13 AM
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Default RE: When is an Optimax broken in?

I am getting around 50:1 with the 225 Opti's.
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Old 09-02-2008, 05:25 AM
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Default Re: When is an Optimax broken in?

12 hours....you need to keep breaking it in per the manual....
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Old 09-02-2008, 06:06 AM
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Default RE: When is an Optimax broken in?

The only time you will see those very high oil to fuel ratios is at idle. Ther is no way for any engine to operate at the high hp output, of today's engines without proper lubrication. That 50-1 comment is more like it.
You may be a little short of the true break in period, which is probably closer to 10 hrs than 2. The number one key to proper break in is varying the RPM. No steady RPM is going to properly break in your engine. The internal engine components are of many different materials, and therefore need different breakin strategies. Piston are much softer than cranks and bearings, etc. If you trip does not mean you will be hammering the engine the whole way, vary the cruise speeds, and enjoy.
Are you going up, or down the east coast? I've done it a few times, and it's a great trip. If you're doing the Mississippi, make special plans for fuel, since there is little gasoline on the river south of St Louis.
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Old 09-02-2008, 06:26 AM
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Default Re: When is an Optimax broken in?

I think the Opti's burn more oil (double?) during the break in. It will say in the manual how long the break in should last.
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Old 09-02-2008, 09:01 AM
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Default Re: When is an Optimax broken in?

Quote:
Baitsaver - 9/2/2008 5:26 AM

I think the Opti's burn more oil (double?) during the break in. It will say in the manual how long the break in should last.
yes, they are programmed to burn almost double oil during breakin
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Old 09-02-2008, 06:49 PM
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Default RE: When is an Optimax broken in?

Quote:
tiretired - 9/2/2008 2:06 AM

The only time you will see those very high oil to fuel ratios is at idle. Ther is no way for any engine to operate at the high hp output, of today's engines without proper lubrication. That 50-1 comment is more like it.
You may be a little short of the true break in period, which is probably closer to 10 hrs than 2. The number one key to proper break in is varying the RPM. No steady RPM is going to properly break in your engine. The internal engine components are of many different materials, and therefore need different breakin strategies. Piston are much softer than cranks and bearings, etc. If you trip does not mean you will be hammering the engine the whole way, vary the cruise speeds, and enjoy.
Are you going up, or down the east coast? I've done it a few times, and it's a great trip. If you're doing the Mississippi, make special plans for fuel, since there is little gasoline on the river south of St Louis.
We are running 300 miles up the Yukon river and then going another 300 up the Koyukuk. After we finish the hunt we will then return on the same rivers.
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Old 09-02-2008, 09:02 PM
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Default Re: When is an Optimax broken in?

According to the Mercury Owners Manual you could consider the engine broken in after apprx 4 with the extra oil mode being complete at about 10 hours.



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Old 09-03-2008, 09:40 AM
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Default RE: When is an Optimax broken in?

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Snowwolfe - 9/2/2008 8:49 PM


We are running 300 miles up the Yukon river and then going another 300 up the Koyukuk. After we finish the hunt we will then return on the same rivers.
Very, very jealous...
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