2.0 LNF Engine: How To: Valve Gunk/Coking Removal
11-19-2013, 12:30 PM
#26
Senior Member
Sorry to hear that. I would hate to pay that bill. I had my tranny serviced @75k, it started to go 5k later and I got it replaced brand new no hassle. Come to Canada mate we pay more for almost everything but the people are fair!
Also that much build-up on such a young engine? I will have to find someone who can get this done for me I am probably way overdue.
Also that much build-up on such a young engine? I will have to find someone who can get this done for me I am probably way overdue.
Last edited by Shanedude; 11-19-2013 at 12:36 PM.
11-19-2013, 01:01 PM
#27
Sorry to hear that. I would hate to pay that bill. I had my tranny serviced @75k, it started to go 5k later and I got it replaced brand new no hassle. Come to Canada mate we pay more for almost everything but the people are fair!
Also that much build-up on such a young engine? I will have to find someone who can get this done for me I am probably way overdue.
Also that much build-up on such a young engine? I will have to find someone who can get this done for me I am probably way overdue.
I did not have tranny issues that was another guy.
My engine did have a bad turbo and a previous owner that I think may have beat on it. Those are the only things I can think of.
11-19-2013, 01:34 PM
#28
Senior Member
**** my bad got confused. Ima sub this and thank you for putting the time to post it up. I will need to do this next year for sure. I haven't noticed any symptoms yet but it must be rough in there.
11-19-2013, 02:35 PM
#31
Senior Member
Trust me I was about to.
I just started getting the passenger airbag needs service a little while ago smh.
Truth^^^^
Passenger belt tension sensor. Wires become stressed and start to acquire a open circuit. Turns airbags off. Light and message on the DIC comes on over and over. Seems like a safety problem due to the airbags turning off and my eyes coming off the road over and over when the light comes on.
https://www.cobaltss.net/forums/prob...ir-bag-299167/
One thing after another!
I'd also like to say that the valve cleaning has not totally made my morning starts ups always smooth. I still get some hiccups now and then. Plus now that my snow tires/wheels are on I can't try WOT or I spin instantly so I have no way to see if the top end misfires went away,
https://www.cobaltss.net/forums/prob...ir-bag-299167/
One thing after another!
I'd also like to say that the valve cleaning has not totally made my morning starts ups always smooth. I still get some hiccups now and then. Plus now that my snow tires/wheels are on I can't try WOT or I spin instantly so I have no way to see if the top end misfires went away,
Truth^^^^
11-19-2013, 06:42 PM
#37
Senior Member
Join Date: 07-26-10
Location: Marshalls creek PA
Posts: 2,367
Likes: 0
Received 0 Likes
on
0 Posts
Simply asking if he felt confident that nothing would have went in the motor.. Wasn't sure if a few specs could have got in and it would be harmfull. Sheesh.
READ. Lol put in 4th spin the tire.
Last edited by seeyaass; 11-19-2013 at 06:42 PM. Reason: Automerged Doublepost
11-19-2013, 06:50 PM
#38
That's the wonder of walnut shell media, it's hard enough to remove crud but safe for the engines. Gotta love it.
It's also easy to put a socket on the crank pulley and just turn the engine over a half turn or so.
It's also easy to put a socket on the crank pulley and just turn the engine over a half turn or so.
Last edited by ItalianJoe1; 11-19-2013 at 06:50 PM. Reason: Automerged Doublepost
11-19-2013, 07:51 PM
#41
Senior Member
Join Date: 07-26-10
Location: Marshalls creek PA
Posts: 2,367
Likes: 0
Received 0 Likes
on
0 Posts
What upgrade do you offer Powell? And lord don't jynx me I believe my rings are fine as of right now.
11-19-2013, 09:09 PM
#44
Senior Member
Join Date: 01-19-10
Location: North Carolina
Posts: 1,279
Likes: 0
Received 0 Likes
on
0 Posts
Why does it happen? Dry intake, plus oil blowby from the turbo, plus a little dust getting past the air filter equals crud. Normal fuel injection is above valves, meaning you get a solvent wash with each injection - doesn't happen in DI's where the fuel enters below-valve.
Got a question on this - did you do anything to make sure you didn't have any walnut crap stuck up the crannies at the tops of the valves? Did you spritz anything up there to ensure you didn't have any renegade solids, or did you just assume/hope/expect the stray bits would just pop into the cylinders after a few cycles?
I haven't checked my 09, and I was thinking a few seafoam treatments are in order - and maybe something like this if I can't seafoam/5th injector and stay clean enough.
Great how to, either way, and great job with the pics - very clear!
Got a question on this - did you do anything to make sure you didn't have any walnut crap stuck up the crannies at the tops of the valves? Did you spritz anything up there to ensure you didn't have any renegade solids, or did you just assume/hope/expect the stray bits would just pop into the cylinders after a few cycles?
I haven't checked my 09, and I was thinking a few seafoam treatments are in order - and maybe something like this if I can't seafoam/5th injector and stay clean enough.
Great how to, either way, and great job with the pics - very clear!
11-19-2013, 09:22 PM
#45
Why does it happen? Dry intake, plus oil blowby from the turbo, plus a little dust getting past the air filter equals crud. Normal fuel injection is above valves, meaning you get a solvent wash with each injection - doesn't happen in DI's where the fuel enters below-valve.
Got a question on this - did you do anything to make sure you didn't have any walnut crap stuck up the crannies at the tops of the valves? Did you spritz anything up there to ensure you didn't have any renegade solids, or did you just assume/hope/expect the stray bits would just pop into the cylinders after a few cycles?
I haven't checked my 09, and I was thinking a few seafoam treatments are in order - and maybe something like this if I can't seafoam/5th injector and stay clean enough.
Great how to, either way, and great job with the pics - very clear!
Got a question on this - did you do anything to make sure you didn't have any walnut crap stuck up the crannies at the tops of the valves? Did you spritz anything up there to ensure you didn't have any renegade solids, or did you just assume/hope/expect the stray bits would just pop into the cylinders after a few cycles?
I haven't checked my 09, and I was thinking a few seafoam treatments are in order - and maybe something like this if I can't seafoam/5th injector and stay clean enough.
Great how to, either way, and great job with the pics - very clear!
I used a scraper tool and lots of compressed air to try and get the most I could from the valve seat area (including the hidden side to the front of the car which I feel most people would miss as you can't see it. I scraped a ton of crap out of there.) as well as the valve stem area. I am sure I missed some as you cannot remove all of it. Any that does get into combustion is harmlessly burned being that it is combustible organic material (wood).
11-19-2013, 09:49 PM
#46
Why does it happen? Dry intake, plus oil blowby from the turbo, plus a little dust getting past the air filter equals crud. Normal fuel injection is above valves, meaning you get a solvent wash with each injection - doesn't happen in DI's where the fuel enters below-valve.
Got a question on this - did you do anything to make sure you didn't have any walnut crap stuck up the crannies at the tops of the valves? Did you spritz anything up there to ensure you didn't have any renegade solids, or did you just assume/hope/expect the stray bits would just pop into the cylinders after a few cycles?
I haven't checked my 09, and I was thinking a few seafoam treatments are in order - and maybe something like this if I can't seafoam/5th injector and stay clean enough.
Great how to, either way, and great job with the pics - very clear!
Got a question on this - did you do anything to make sure you didn't have any walnut crap stuck up the crannies at the tops of the valves? Did you spritz anything up there to ensure you didn't have any renegade solids, or did you just assume/hope/expect the stray bits would just pop into the cylinders after a few cycles?
I haven't checked my 09, and I was thinking a few seafoam treatments are in order - and maybe something like this if I can't seafoam/5th injector and stay clean enough.
Great how to, either way, and great job with the pics - very clear!
and seafoam ? gets in your mouth when you surf.
