Question about Stanley Lawn Mower. 54 in. 24 HP Kawasaki FR691V Heavy Duty Zero Turn

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WHY DOES OIL BLOW OUT DIPSTICK TUBE WHEN ITS RUNNING

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Make sure it has the right amount of oil in the crank case, if over filled the oil will foam and flow out any place it can, Worn piston rings can cause blowby into the crank case , causing oil to escape from the dipstick tube.

Posted on Feb 08, 2017

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Posted on Jan 02, 2017

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1 Answer

How can I stop oil from coming from my dipstick?


Depends on the cause.
Blow-by is when oil blows by the rings in the cylinders into the combustion chambers or compression blows by the rings into the crankcase. It can also be caused when too much pressure builds up in the crankcase because of a venting problem.
So blow-by can cause smoke out the tailpipe from oil burning with gasoline, or oil collecting in the air cleaner, or blowing out a seal or other place like your dipstick tube.
If it is caused by worn piston rings, the rings have to be replaced.
If it is a venting problem, you need to open up the vent, like the PCV valve or the air intake port.
If you remove the cap where you add oil and there is a vacuum when the engine is running, the venting system is working. If oil blows out the hole, there is too much pressure in the crankcase.

Nov 29, 2015 | Cars & Trucks

Tip

Broken dipstick removal on 1.8l Nissan Sentra.


There have been issues with dipstick handles breaking off and dipstick stuck in tube. Here is a simple way to remove that broken dipstick. On the valve cover there is a hose that leads to the intake tube. Remove this hose and with a blow nozzle blow compressed air into the valve cover. The broken dipstick will shoot out of the tube. Simply install the new dipstick into the tube.

on Feb 13, 2010 | Nissan Sentra Cars & Trucks

1 Answer

1992 cadillac deville leaking oil at dipstick


I would look for other leaks. If you are sure it's leaking at the dipstick tube, there is normally an o-ring where the tube presses into the engine. In general, this is an odd place for a leak, as ther eshould be no oil pressure in the pan (where the tube terminates) and unless the engine is overfilled with oil, the tube end shouldn't be immersed in oil to leak. IF there is pressure in the oil pan, that generally indicates bad rings. I have seen engines where the oil dipstick actually pops out of the tube under pressure when the engine is running due to pressure in the oil pan from blow-by at the rings.

Jan 05, 2014 | 1992 Cadillac DeVille

1 Answer

Volkswagen beetle problems


Two possibilities I can think of.. Dipstick not fully inserted... or is it possible that you have overfilled the crankcase with oil??? On my VW, I learned the hard way to take special care when checking the oil level with the dipstick... I had to fully remove the dipstick... clean it off... and THEN reinsert it... and pull it back out.. and then look to get an accurate oil level reading... It must have something to do with how the dipstick tube runs down into the crankcase....

Jan 05, 2014 | Cars & Trucks

1 Answer

Why would oil be back pressuring through my dipstick on my 1992 Chevy Surburban 350 engine?


Excessive compression loss past worn piston rings into the crankcase .

Dec 21, 2013 | 2001 Chevrolet Impala

1 Answer

I have a problem with oil blowing back through the dipstick in my 1994 Jeep Wrangler YJ 6 cyl engine... I have built a few engines of various types over the years and have done all my maintenance all my...


No solution from me, Note: Sounds like your pretty familiar with the Positive crankcase ventilation (PCV). You said the valve is pulling a vacuum I am assuming it is from the intake manifold side correct? With the PCV was working sure seems like it would keep the oil from coming out of the dipstick tube. I am stumped as well, sounds almost like too much blow by from the cyclinders you already stated that with the possible broken compression rings?

Dec 08, 2013 | 1994 Jeep Wrangler

2 Answers

My 1996 jeep grand cherokee oil dipstick tube has vacuum


The PCV system is supposed to pull vac on the crankcase to re-burn the fumes in the oil pan.
But your engine sounds like it has a vent problem via the air filter.

Jul 01, 2012 | Jeep Grand Cherokee Cars & Trucks

2 Answers

I got a 92 Ford F250 and I was recently changing filters on it (its got the 5.0) and I noticed that the crankcase breather located in the air box always falls apart (i have had several of these types of...


Your PCV valve is usually about a $2 part and is suppose to keep oil out of this tube. Follow the tube back to the valve cover and the PCV valve should be there.

Excessive blow by could also cause oil to get into this tube. The blow by is usually caused by worn piston rings or valve guides. The compressed air/fuel mixture or exhaust pushes past these areas and make it into the crank case. Usually if you have a lot of blow by, you'll see your dipstick tube popped out a bit too.

PCV valve is cheap and easy to change... I'd give it a try.

Mar 30, 2010 | 1992 Ford F250

1 Answer

The car has no oil but the dip stick shows that it is full!!! what duz that meen?


wipe the dipstick off well,check 2 or 3 times if there is compression problems it might blow some residue oil back up dipstick tube, [and dipstick out a little bit][rings] sure fire test, drain oil,change filter fill with new oil if you do not no proper amount try 4.5 litres and go from there.

Dec 07, 2009 | 1991 Mercury Grand Marquis

1 Answer

Oil blowing out of the dipstick tube.


On top of the valve cover there is a fresh air breather unit. Make sure the breather unit is not plugged.
Also the fixed orifice PCV should be clear. Find a tool that will go through the orifice and make sure it is clean.
Remove the vacuum hose and check it for cracks or internal damage. With the engine running, make sure you have vacuum through the hose.
Let me know when your finished cleaning the crankcase breather system.
Regards,

Apr 09, 2009 | 1994 Jeep Wrangler

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