changed Oil filter housing gasket and did 2nd Valve cleaning

TSRxi · 02-25-2015, 04:32 PM

I have a 208 335xi that I just changed the oil filter gasket and while I had the intake off again I walnut media blasted my valves.

I did the first intake valve cleaning about 20k miles ago. I would not have done it this soon but had to remove the intake to get the oil filter housing off.

To be honest it really only takes about 20-30 min to get the intake off once you have done it before. I was surprised to see that the valves were more dirty than i expected. I also could see that most of the tar and carbon oil build up starts from the air/oil hitting the almost top area of the valve stem when the valves are open.

It then becomes like a cancer that grows down to the face of the valve.

Given my set up with walnut media blasting equipment (harbor Freight) I probably will plan to do this every 25k miles. I can do the entire job now in about 3-4 hours.

Car running better than ever now. Turbos replaced with updated wastegates. Injectors changed to updated version. I also replaced all the spark plugs and coil packs.

Bites that this has got to be one of the most needy engines in terms of maintinence out there. I have heard that there have been almost no issues with the redesigned parts. So lets see how it goes.

also installed VRSF 7" IC. I am going to JZW tune as soon as I can get dinan tune off the car. Been a major pain to get it removed.

nikitino25 · 02-25-2015, 05:39 PM

Do you have an OCC?

Scottycs · 02-25-2015, 07:16 PM

Why not just get a RB PCV valve and/or OCC.

TSRxi · 02-26-2015, 02:47 PM

I do have a Upgraded PCV valve from Burger. I will try the catch can but I really dont see it making that much of a difference. I have heard from most people using one that it does not catch that much oil. I can tell that the Amsoil Powerfoam I used about 8k miles ago seemed to have helped a little. But it did not seem to get into all the cylinders equally. The #6 had more carbon.

Bottom line is if you have the walnut media blaster set up and have done this 1 time before... its not a major deal to do this about every 25k miles. I will get a catch can and we can see how much of a difference it makes next time I do this.

02-25-2015, 04:32 PM	#1
TSRxi Enlisted Member 7 Rep 44 Posts Drives: 2008 335xi Dinan 2 Join Date: Apr 2014 Location: United States iTrader: (0)	changed Oil filter housing gasket and did 2nd Valve cleaning I have a 208 335xi that I just changed the oil filter gasket and while I had the intake off again I walnut media blasted my valves. I did the first intake valve cleaning about 20k miles ago. I would not have done it this soon but had to remove the intake to get the oil filter housing off. To be honest it really only takes about 20-30 min to get the intake off once you have done it before. I was surprised to see that the valves were more dirty than i expected. I also could see that most of the tar and carbon oil build up starts from the air/oil hitting the almost top area of the valve stem when the valves are open. It then becomes like a cancer that grows down to the face of the valve. Given my set up with walnut media blasting equipment (harbor Freight) I probably will plan to do this every 25k miles. I can do the entire job now in about 3-4 hours. Car running better than ever now. Turbos replaced with updated wastegates. Injectors changed to updated version. I also replaced all the spark plugs and coil packs. Bites that this has got to be one of the most needy engines in terms of maintinence out there. I have heard that there have been almost no issues with the redesigned parts. So lets see how it goes. also installed VRSF 7" IC. I am going to JZW tune as soon as I can get dinan tune off the car. Been a major pain to get it removed.
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02-25-2015, 05:39 PM	#2
nikitino25 Captain 91 Rep 817 Posts Drives: '07 E92 335i Join Date: Dec 2011 Location: Missouri iTrader: (2)	Do you have an OCC?
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02-25-2015, 07:16 PM	#3
Scottycs Banned 54 Rep 591 Posts Drives: 09 335i Join Date: Oct 2009 Location: Raleigh, NC iTrader: (6)	Why not just get a RB PCV valve and/or OCC.
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02-26-2015, 02:47 PM	#4
TSRxi Enlisted Member 7 Rep 44 Posts Drives: 2008 335xi Dinan 2 Join Date: Apr 2014 Location: United States iTrader: (0)	occ I do have a Upgraded PCV valve from Burger. I will try the catch can but I really dont see it making that much of a difference. I have heard from most people using one that it does not catch that much oil. I can tell that the Amsoil Powerfoam I used about 8k miles ago seemed to have helped a little. But it did not seem to get into all the cylinders equally. The #6 had more carbon. Bottom line is if you have the walnut media blaster set up and have done this 1 time before... its not a major deal to do this about every 25k miles. I will get a catch can and we can see how much of a difference it makes next time I do this. Attached Images
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