A few weeks back I was checking and topping up fluids prior to a weekend trip. The leg oil resevoir was down a few inches from the full line, so I topped it up with a few ounces to bring it back up to capacity. Went on the trip, and noticed that there was some gear oil in the bilge, directly below the resevoir. Level was down a bit again too. I forgot all about it because this was the same trip where I lost my raw water pump idler pully and had to be towed home... in the interim I cleaned up the bilge, and didn't think about it any more until yesterday.
I took the boat out for a short spin yesterday, and AGAIN, more gear oil in the starboard side bilge! I can see that it has come from the resevoir... and when I opened the cap, it was under pressure... heard a puff of air come out as the seal released. I had not topped up again, the level in the resevoir is just below the full line (the pic below was taken with the engine hot)
So what's going on? Why is gear oil being blown out my resevoir?
I took the boat out for a short spin yesterday, and AGAIN, more gear oil in the starboard side bilge! I can see that it has come from the resevoir... and when I opened the cap, it was under pressure... heard a puff of air come out as the seal released. I had not topped up again, the level in the resevoir is just below the full line (the pic below was taken with the engine hot)
So what's going on? Why is gear oil being blown out my resevoir?
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