Effects of too much lube in Cobra Outdrive???

Joelk

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Aug 23, 2011
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22
I recently purchased a 1988 Four Winns 210 Horion with 5.7L Engine and Cobra Outdrive.

The motor was not properly winterized and it had a cracked block when I bought it. I changed the block and took it out for a brief test run. It ran OK, but did not seem to have the power or top speed that I had anticipated.

The prior owner said that the Outdrive Lube had recently been changed and just checked before it was put away for the winter.

I (foolishly) did not check the Outdrive Lube before I took it out on the lake, but pulled the fill plug today and the lube ran out of the dipstick hole. Seemed like about a cup ran out. Obviously it was overfilled by quite a bit. Not really sure how it could have been as full as it was, but the lube kind of gushed out when I pulled the dipstick.

I only took a brief run, but I did run a few miles at low throttle and perhaps 30 seconds to a minute at full throttle just to see how fast it would go.

I drained the lube and it looked good, dark green(Merc High Performance?) and translucent with no signs of wear particles in the oil or on the drain/fill plug magnets.

Did I cause any damage by running it overfull? If so, what may have been damaged?

It did not perform as well as I had expected. Would this have had a significant effect on performance?
 
Last edited:

bruceb58

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Mar 5, 2006
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30,480
Likely not an issue. The only worry would be is if it blew out a seal. Make sure when you fill it back up you do it properly by filling from the middle hole on the sterndrive and not from the bottom.
 

Joelk

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Aug 23, 2011
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Thanks for the reply.

So you don't think it would have caused any noticeable performance decrease?
 

Lou C

Supreme Mariner
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Nov 10, 2002
Messages
11,900
Its probably fine, the only time I had this happen was when one of the seals was bad and mine sucked in water. Just make sure to re-fill it the right way.
 

Joelk

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Aug 23, 2011
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22
I am wondering if it could partially account for the performance being less than I expected.
 
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