Question about Boating

1 Answer

Volvo penta aqad41a 200 hp engine with 1300 running hours has oil "pumping" from the crankcase breather

The engine loses around 1 ltr per hour at 3000 rpm. Had mechanic take a look, but he immediately ruled out blow by as the engine starts easily with little smoke. I also have no oil splashing from the filler hole when the oil cap is removed. The engine can also reach 4000 rpm with out to much trouble. The next step is to have the engine removed & dismantled to investigate why this is happening, but cost is an issue. Have you any advice as to what might be causing this? Regards Tim

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Renaissance:

    An user who is expert in 3 categories / brands.

  • Master
  • 1,190 Answers

Oil level correct ? engine breather clean as can cause back pressure ?

Posted on Jun 04, 2014

Ad

2 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
jturcotte
  • 8515 Answers

SOURCE: Our engine bilge pump is

Hi, if you can switch on the pump, it's OK. Usually, the pump needs the helm switch on AND the float up. Does the pump not shut off when you push the float down? That would be normal operation, unless the helm switch has both automatic and manual settings.

Posted on Apr 04, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

2002 Monterey with an 8.1 liter Volvo Penta running in it. I ran the boat about 6 hours over 2 days. When I was finished there was some oil in the water in he engine compartment. What could that be.


check engine oil seals , or you make a engine service oil change recently and squirm out the engine , also check the oil filter is tight , Maybe water comes from outside when navigating

May 26, 2017 | Volvo Boating

1 Answer

Briggs & stratton 18hp model 422777


check around the sump breather pipe. When you replace the bottom seal it is advisable to inspect the shaft as if there is a groove there the new seal will not work as intended.

Jun 23, 2013 | Garden

1 Answer

My Gravely 2011 0 turn model number 915146has a briggs and stratton engine smokes like it is burning oil. I change the oil religiously with good 30 weight oil.


in dusty conditions the crankcase breather will clog , in which the crankcase builds excess causing oil to be forced by the rings.
clean the crankcase breather.

Mar 16, 2013 | Measuring Tools & Sensors

1 Answer

77 shovelhead w joe hunt mag and s&s oil pump everything is great except after about 20 mins of riding oil start coming out of gasket all around cam cover and mag assembly dont know what would cause...


There ae a number of things it could be. What it sounds like to me is that the oil is not being pumped back into the oil tank and is collecting in the cam chest. It should be blowing out of your crankcase breather tube as well if your crankcase breather tube is open. Behind the oil pump, there are three holes. One is behind and above the oil pump. This is where the breather tube from your oil tank and the primary comes into the engine. The hole directly behind the oil pump in the middle is the oil return line from the very back end of the primary where the oil from the primary is recirculated back into the engine. The bottom hole behind the oil pump is the crankcase breather. It should have a hose that runs back around behind the transmission and just dead ends in a bracket pointed towards the final drive chain. This hose should be open to vent the crankcase pressure. Have you checked to see if oil is being pumped back into the oil tank? If not, the scavenge gears of the oil pump may not be pumping the oil out of the engine and back to the tank. If this is the problem, you may not have the drive key properly installed in the scavenge gears of the oil pump. Still, oil should be pouring out of the crankcase breather hole. But, this is what it sounds like it's doing to me. The oil is building up in the cam chest for some reason.

Good Luck
steve

Sep 06, 2011 | Harley Davidson FXDWGI Dyna Wide Glide...

1 Answer

Oil cap and dipstick covered in creamy sludge, is this breather prob as not losing any water


Yes, it could be that a plugged up Positive Crankcase Ventilation (PCV) valve or engine crankcase breather (with filter) is the cause allowing moisture to condense in the crankcase. However, if the valve and breather are okay, a cylinder compression test should be done to verify that the cylinder head gasket is not leaking. Regardless, the engine oil should be drained and the engine flushed with clean oil and an appropriate crankcase flush additive. Entrained water in the oil (the creamy sludge) will damage engine bearings quickly.

Mar 05, 2011 | Volkswagen Golf Cars & Trucks

1 Answer

Oil is getting on air breather 2004 ram hemi


Hi,
oil getting on a breather can indicate excessive crankcase pressure. Check all the `crankcase breathers and the valve cover breathers.

if the crankcase has been overfilled with engine oil. The crankshaft has to "beat" it's way through the oil and thus acts as a pump and sends oil all over the internal surfaces of the crankcase.

If the engine cylinders have developed 'blow-by" they will also contribute to an increase in crankcase pressure which will be evident by oil in the breathers. The fumes / pressure in the crankcase are designed to be removed by the engine breather system, and drawn through the engine etc.

I hope this info helps.

Jan 25, 2011 | 2004 Dodge Ram 1500

3 Answers

Where does the oil go from tank when bike sits a long time?


This is what we call "oil sumping" around here. On the soft tail line or any other line of Harley where the oil tank is higher than the oil pump, the oil will seep past the check ball in the oil pump and leak into the crankcase of the engine. When the engine is started up, it will "puke" the oil out. Now, up until the introduction of the Evo engine, the engine would puke on the ground under the bike out the breather tube. Now with the Evo engine and the EPA's regulation that crankcase ventilation fumes have to be fed back through the intake, it pukes into the breather. An even bigger mess. So, what we do whenever we think we've got this situation is put a pan under the shovelhead and panhead bikes, On the Evos and Twin Cams, we take the air breater cover and the air filter out before the fire the engine. It's a mess either way you look at it. I don't think the Twin Cams are as bad as the Evo engines due to the different type of oil pump.

Jul 15, 2010 | 2000 Harley Davidson FLSTS Heritage...

1 Answer

Oil in air breather


sounds like you have too much oil in the engine (should normally be around 500-600ml when there is too much oil, it gets past the piston rings and pushes it through to the head.

May 20, 2009 | Briggs & Stratton Briggs Stratton Vanguard...

1 Answer

Volvo Penta marine diesel 2003T engine has diesel in sump


I owned one diesel engine. I would say the engine siphoned the diesel after it was shut off.
The throttle controls may not be closed. The injectors were tested for their opening and spraying, but were they tested for closing and sealing when off? Diesel fuel lines maintain a vacuum or they get air bubbles. Cooling cylinders create a draw right into the crankcase. Last idea-crankcase vent clogged

May 11, 2009 | Boating

Not finding what you are looking for?
Boating Logo

Related Topics:

132 people viewed this question

Ask a Question

Usually answered in minutes!

Top Boating Experts

Steve
Steve

Level 3 Expert

693 Answers

ray gallant

Level 3 Expert

45229 Answers

Fabrice Wolters

Level 2 Expert

320 Answers

Are you a Boating Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...