|
|
|
|
Thread Tools | Display Modes |
09-04-2002, 11:29 PM | #1 |
Scooby Guru
Member#: 7089
Join Date: May 2001
Chapter/Region:
NWIC
Location: Western Wa
Vehicle:2016 STi |
Intake Valves: Do these look okay?
About 35k miles on the car. Should I be worried about the level of buildup/deposits on the backside of my intake valves?
* Registered users of the site do not see these ads.
|
09-04-2002, 11:38 PM | #2 |
Scooby Specialist
Member#: 15904
Join Date: Mar 2002
Location: WA
Vehicle:05 Impreza 09 Tribeca |
What brand of gas do you run? Any fuel additives?
|
09-04-2002, 11:40 PM | #3 |
Scooby Guru
Member#: 6788
Join Date: May 2001
Chapter/Region:
Tri-State
Location: Stamford, CT 06902
Vehicle:2014 991 Turbo S 2007 997 Turbo |
What kind of gas do you use?????
I'm sure any extra weight on there will prob contribute to valve float - but prob not a big deal They have some stuff that burns that off - but no sure if it could damage other parts of your engine ???? |
09-05-2002, 12:01 AM | #4 |
Scooby Guru
Member#: 7089
Join Date: May 2001
Chapter/Region:
NWIC
Location: Western Wa
Vehicle:2016 STi |
I use chevron or texaco 92 octane, and occasionally a 20% toluene mix with an ounce of GTA fuel enhancer.
I use a 7200 rev limit... AFAIK I haven't had any valve float problems... |
09-05-2002, 12:03 AM | #5 |
Scooby Newbie
Member#: 12506
Join Date: Nov 2001
|
Looks ok to me for 35K. I mean, whatever residue there is seems to be pretty "even", as opposed to "spotty", which is a good sign.
Looks good. |
09-05-2002, 12:06 AM | #6 |
Scooby Guru
Member#: 7089
Join Date: May 2001
Chapter/Region:
NWIC
Location: Western Wa
Vehicle:2016 STi |
Thanks.
FWIW, that is cylinder #1 (hehe... easiest one to get to while holding a light and camera...). All other intake valves look very similar. |
09-05-2002, 07:28 AM | #7 |
Scooby Specialist
Member#: 5961
Join Date: Apr 2001
Chapter/Region:
South East
Location: Boone, NC
Vehicle:2005 STi CGM |
Hard to tell from the pics, but it is residue, and not coking right? (Just asking, I don't even know what the stock valves are made of) I've always used Marvel Mystery Oil for deposit cleanup. Reduces detonation as well (1-2 oz./tank)
VV |
09-05-2002, 09:03 AM | #8 |
Vendor
Member#: 20483
Join Date: Jun 2002
Location: Under the hood of your car.
|
I have heard of a few guys who use ATF. Run about a quart of it slowly through the intake via a vac port by pinching the hose that sucks it in. You'll need a second guy to run the car at a high idle. It'll smoke like mad from the exhaust. Afterwards, you need to change spark plugs.
ATF is some pretty cool stuff. |
09-05-2002, 12:44 PM | #9 | |
Scooby Guru
Member#: 7089
Join Date: May 2001
Chapter/Region:
NWIC
Location: Western Wa
Vehicle:2016 STi |
Quote:
|
|
09-05-2002, 01:34 PM | #10 |
Moderator Member#: 922
Join Date: Feb 2000
Chapter/Region:
MWSOC
Location: Schaumburg, IL
Vehicle:16 WRX (white) 04 FXT (red) |
I think the fact that it seems you have grass on your head there is what worries me the most.
|
09-05-2002, 01:37 PM | #11 | |
Scooby Specialist
Member#: 5961
Join Date: Apr 2001
Chapter/Region:
South East
Location: Boone, NC
Vehicle:2005 STi CGM |
Are you talking bout the antifreeze? I would worry if I didn't have any around
VV Quote:
|
|
09-05-2002, 01:59 PM | #12 |
Scooby Specialist
Member#: 17346
Join Date: Apr 2002
Chapter/Region:
South East
Location: All Over NC
Vehicle:08 Cayman S White |
No, just use water and keep the idle around 2500. Just spray water into the intake with a mister or spray bottle. It is a proven method of removing carbon build-up. MG recommends it in there owners manuals
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Do these look good? | lilneel12 | Member's Car Gallery | 45 | 07-26-2006 05:54 PM |
Do these look done? | Georgethefierce | Off-Topic | 47 | 07-19-2006 02:42 PM |
Do these look like JDM STi HIDS? | norseone | Interior & Exterior Modification | 1 | 06-22-2003 06:39 PM |
18" Wheels on Ebay! Do these look good? | saggioWRX | Brakes, Steering & Suspension | 1 | 02-04-2003 11:06 AM |
How do these look? | Limey | Interior & Exterior Modification | 9 | 08-31-2001 06:55 PM |