Spark plugs question after 80k miles
#1
Spark plugs question after 80k miles
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!!
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!!
#2
Drifting
iTrader: (1)
Join Date: Nov 2010
Location: Salt Lake City, UT
Age: 43
Posts: 3,490
Received 853 Likes
on
606 Posts
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.
#3
#4
Drifting
iTrader: (1)
Join Date: Nov 2010
Location: Salt Lake City, UT
Age: 43
Posts: 3,490
Received 853 Likes
on
606 Posts
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.
The following users liked this post:
Lee C (12-11-2017)
#5
thank! Catch can installed and iridium plugs installed
Last edited by VictorTL; 12-12-2017 at 11:10 AM.
#6
Drifting
iTrader: (1)
Join Date: Nov 2010
Location: Salt Lake City, UT
Age: 43
Posts: 3,490
Received 853 Likes
on
606 Posts
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.
#7
this is how much oil is trapped after 1,000 miles
Trending Topics
#12
#13
Drifting
iTrader: (1)
Join Date: Nov 2010
Location: Salt Lake City, UT
Age: 43
Posts: 3,490
Received 853 Likes
on
606 Posts
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.
#17
Thread
Thread Starter
Forum
Replies
Last Post
Thermos
1G TSX Problems & Fixes
7
07-12-2010 08:30 AM
briny319
1G TSX Problems & Fixes
19
07-10-2007 07:01 PM
gregshin
2G CL (2001-2003)
3
11-17-2003 10:52 AM