VictorTL

Rear #1
Rear #2
Rear #3
Front #4
Front #5
Front #6
I asked this question before but I want to revisit something that i have observed after removing the front and back valve cover. Inside the rear cylinder head looks very light and inside the front cylinder head looks dark with oil burnt stains and the reason being is that the PCV is connected to the front cylinder head. Maybe this is the reason why the rear spark plugs #1-3 look cleaned and the front spark plugs #4-6 had a lot of carbon build up due to the flow-by oil vapor is recirculating into the front intake valve chambers. If this is true then installing the oil catcher will reduce the carbon buildup on the spark plugs and valves. And there is no way in hell seafoam or other cleaning detergent will clean this out!!

losiglow

iTrader: (1)

Those don't look terrible, but they don't look that good either. And they don't appear to be laser iridium. I'd replace them with iridium's then install the catch can. Even without a catch can, mine never looked like that.

Lee C

Catch can?

losiglow

iTrader: (1)

Yes. White ash deposits can indicate a bit of oil or fuel additive consumption. A little bit of white is fine, but I'd say those have more than normal. A catch can would help reduce the amount of oil vapor getting back into the intake which might help. Also, if you're putting any additives in the fuel, I'd limit or eliminate doing that.

VictorTL

thank! Catch can installed and iridium plugs installed

losiglow

iTrader: (1)

Nice! You should be good for another 80-100K. Also, the catch can gives you a good idea of how much blowby you're getting past your cylinder rings. If it's filling up quickly, that's not a really good sign. There's not a ton you can do about it, but it's good to know.

VictorTL

this is how much oil is trapped after 1,000 miles

losiglow

iTrader: (1)

Did you mean to attach a pic?

VictorTL

Here

VictorTL

Actually that is how much oil is collected after 2,000 miles

TLTesh604

Any links to where you guys bought your catch cans compatible with our TLs? Any diy write ups about it? Would be appreciated!

dregsfan

How much oil does your engine burn? Seems like the carbon buildup on the plugs would be proportional to how much oil the engine uses.

losiglow

iTrader: (1)

To my knowledge, just about any generic catch can system will work. I bought this cheapo off eBay:

https://www.ebay.com/itm/BILLET-ALUM...53.m2749.l2649

It works just fine. The hose was crappy so I went to Autozone to get the automotive grade stuff which cost all of $1.50. I can't remember the size but you can take your existing tube which goes from the valve cover to the intake manifold to make sure you get the right size.

As far as a DIY, I'd search online a bit. It's really just a matter of connecting a hose to the valve cover and intake manifold, then connecting those to the catch can. Then clamping them down to make sure they don't come off. That eBay cheapo comes with the clamps you'll need. That's about it.

JT4

OP - Just wondering which engine do you have?

VictorTL

J37 series, 2011 mdx

VictorTL

sorry, that oil trapped is after 1,160 miles

VictorTL

here
http://www.mdxers.org/forums/74-second-generation-mdx-2007-2013/154770-installed-oil-catcher.html