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Anyone With A Seapro V8 Outboard?

  • Thread starter Deleted member 64288
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Deleted member 64288

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I'm hoping someone in the forum will have some clearer advice than I got from the factory regarding filling my 5.4" Seapro gearcases. The factory specifications say that the gear cases are supposed to be filled with 33.1 oz (approximate) of 90 weight high performance gear lube. On a Seapro gearcase the drain and vent plugs are on the side of the torpedo and also behind the propeller. Mercury recommends that the leading edge of the skeg be trimmed to level with the ground then filling the gearcase from the bottom plug. The problem with this method is there is no way that you can get even close to the 33 ounces into the gearcase filling it this way. I wrote and called the factory and I got conflicting answers. One response was to insert the 33 ounces following the factory recommended filling method ( impossible, at least for me). Another recommendation from a phone call was to fill the gearcase tilting it as recommended in the owner's manual not worrying if the full 33 ounces goes in. When I fill the gearcase the way they recommend I can only get in about 22 ounces. Does anyone have any insight on this problem? When draining the gearcases I wait for an hour to be sure they are completely empty. My inclination is to fill the gearcase with the whole 33 ounces by tipping it differently than recommended.

Bob
 
You drove me crazy with this question. The torque master gearcase for your V8 only holds about 17 oz of gearlube. Where did you see 33 oz. to fill your gearcase? I realize the Sea Pro appears to be a heavier duty engine and may have a different capacity for the gearcase, but it seems like a lot of gearlube campared to the high performance torque master that would see a lot of stress.
 
The factory repair manual and the owner’s manual both specify actually 33.1 ounces for both the right hand and counter clockwise gear cases. The seaport gear cases are supposed to last three times longer than the recreational gear cases. That’s one of the reasons I went with the Seapros instead of the sport versions. They also have stronger mounting brackets and they are detuned so they don’t run quite as fast as the sport versions. I’m going to fill the gear cases with 32 ounces each and call it a day. I actually have been doing this for three years without any problems but I thought I would try filling the gear cases their way this year. They will only hold 22 ounces filling them their way.
 
Follow-up: I couldn't get a good answer from anyone regarding this issue so I decided to do some research myself. Basically, all the internal components of the Seapro, Verado and standard V8 gearcases are the same. Exact same part numbers for the forward and reverse gears, prop shaft, bearing carrier, thrust bearings etc. The only difference is in the part numbers for the gearcase casting. The Verado case is designed to hold almost exactly the same amount of gear lube as the Seapro, 33 ounces. I think the only difference between the two gearcases is that the Seapro has the fill and vent holes on the torpedo as well as on the bearing carrier.
 
Follow up to what?

I am not seeing a question being asked? What is the purpose of your post? Is it to provide information to boaters?
 
Hi, fitz73222. The original post mentions this issue. If you follow the manual's recommendations for filling a Seapro you will not be able to insert the full 33 ounces before it runs out of the vent hole. Please read the original post.
 
Robert Krecak said:
Hi, fitz73222. The original post mentions this issue. If you follow the manual's recommendations for filling a Seapro you will not be able to insert the full 33 ounces before it runs out of the vent hole. Please read the original post.
Click to expand...
I did read the original post, I just wanted to make sure you and I understood the correct filling process that you had described. The only way I can see how you could possibly get more oil in is to remove the vent plug from behind the propeller if it has one like the torque master and fill it using the bottom fill plug as decsribed on page 126, leaving the other vent plug in. Something is peculiar about either the advertized capacity or the filling procedure. Just trying to help here....
 
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