1992 Ski Brendella Inboard No Exhaust

[dlangdado]

Im new to boating and have a couple of questions. I just purchased a ski boat has inboard motor and I do not see any bilge blower or exhaust pipes anywhere in the engine and I have no idea where to run the pipes for the exhaust or the type of blower I would need. It does have a button on dash that reads blower on it so I will just have to run down the wiring. I took it to the lake and it seems like it takes in alot of water under the motor there is a automatic bilge pump that pumps the water out and it came on frequently is that normal for this type of boat. Thanks for any input

 

[marine4003]

Re: 1992 Ski Brendella Inboard No Exhaust

my mind's eye is fairly good....but not that good...Pic's - pic's - pic's

 

[RotaryRacer]

Re: 1992 Ski Brendella Inboard No Exhaust

So, you had in in the lake running with no exhaust pipes? Are there exhaust manifolds on the motor? I would assume that as a ski boat it is a straight inboard and the exhaust would go under the deck and exit at the rear right at the water line...probably under a swim platform on the back of the boat.

If you ran the boat with out these pipes existing outside the boat you were probably getting all of the engine cooling water dumping into the bilge.

Tell us more and get some pictures of the motor up.

 

[salty87]

Re: 1992 Ski Brendella Inboard No Exhaust

So, you had in in the lake running with no exhaust pipes? Are there exhaust manifolds on the motor? I would assume that as a ski boat it is a straight inboard and the exhaust would go under the deck and exit at the rear right at the water line...probably under a swim platform on the back of the boat.

If you ran the boat with out these pipes existing outside the boat you were probably getting all of the engine cooling water dumping into the bilge.

Tell us more and get some pictures of the motor up.

rr has it. i don't think you can run it without exhaust pipes, you'd have a real big mess on your hands if the exhaust was just filling the boat...be pretty hot and smelly. sounds like you've got a nice leak though. doesn't matter what type of boat, they should all be dry on the inside.

straight inboards are pretty simple to work on. there's not as much that could leak on an inboard as an i/o. yours is probably the drive shaft though. some are designed to leak very slowly and need to be replaced periodically. you'll need to inspect it while the prop is turning in the water though, should drip once every minute or so. bring a buddy to help.

looking at the engine, you should be able to find the exhaust manifolds. bolted on top of them are the risers. there should be hoses attached to the risers that run under the floor to the transom.

blower on mine (also inboard ski boat) is under one of the rear seats. there's a hole in the floor where the intake hose drops into the bilge. the exhaust for the blower is one of the grills on the transom. by blowing air out the rear of the hull, it draws fresh air in from the front intake grills through the bilge.

 

[dlangdado]

Re: 1992 Ski Brendella Inboard No Exhaust

Thanks for your help I'll try to post some pictures I think the blower would fit on top of the motor behind the carb intake air filter there is a flat piece of metal and some electrical lines to it. the exhaust would probably go out the back there is part of a hose there and I think the fresh air would come from the cup holders. I still don't know the type of blower I would need or where to get it.

 

[DaveM]

Re: 1992 Ski Brendella Inboard No Exhaust

There are 2 exhaust ports under the swim platform--you can't miss them from a water view. Air intake for the Brendella is by the windshield and I think the blower is located in front of the engine, but not sure on that one. Flip open the engine cover and turn the blower on to make sure the blower actually works. The source of your leak is most likely the prop shaft, which needs to be repacked every so often.

 

[salty87]

Re: 1992 Ski Brendella Inboard No Exhaust

looks like your blower exhaust hose in the 4th pic. the intakes are up front, not the cup holders. you should have some grills near the windshield with hoses inside, running from the grill intakes to the bilge. there should be a hole in the floor back there to drop the intake hose down.

your exhaust hoses are accessible from the bilge, that's nice.

since it's new to you, you might as well go buy some packing for the shaft. there's a more expensive packing that hardly drips, might think about that. you'll also want to get a new impeller.

 

[RotaryRacer]

Re: 1992 Ski Brendella Inboard No Exhaust

The blower is intended to draw any explosive gas fumes out of the bilge before you start the engine. The blower is usually mounted so that is draws air in one side or end of the bilge and dumps it out the other. You boat is set up so that the blower would be mounted in the rear and draw air from the front and dump out the back. That white hose in the last pic is probably supposed to be mounted to the exhaust end of the blower. The blower was proabably mounted right up and behind the rear seat of the boat were the hose is.

Blowers can be purchased at any marine store, including here at iboats.

I assume now that you were talking about the blower exhaust and not the engine exhaust.

Your prop shaft packing is probably leaking and that is why you are getting water into the bilge. Get that fixed. There really shouldn't be any water in the bilge of a boat.