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Cylinder Borescope 2010 Genesis Coupe @172k (pics) #4497833
08/25/17 02:49 PM
08/25/17 02:49 PM
Joined: Jul 2010
Posts: 855
TX
Lethal1ty17 Offline OP
Lethal1ty17  Offline OP
Joined: Jul 2010
Posts: 855
TX
The pics are a bit grainy/blurry but it was a $30 borescope that I've never used before. The videos for whatever reason didn't record properly or I would have more to show of the cylinder and crosshatching condition, which both appear to be in great condition. 172,xxx miles on the vehicle at the moment. I use top tier gas, the occasional bit of PEA treatment and MMO now and then. Only synthetic with extended drain intervals. Burns no noticeable amount of oil. Idles smoothly. I would like to remove that carbon from the piston tops though.





Re: Cylinder Borescope 2010 Genesis Coupe @172k (pics) [Re: Lethal1ty17] #4497849
08/25/17 03:06 PM
08/25/17 03:06 PM
Joined: Dec 2016
Posts: 6,226
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,226
Waco, TX
Originally Posted By: Lethal1ty17
I would like to remove that carbon from the piston tops though.


What carbon?!?

That's just "color"...

it only goes away when you have a cracked head & the cylinder is "burning water"


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Cylinder Borescope 2010 Genesis Coupe @172k (pics) [Re: Lethal1ty17] #4497855
08/25/17 03:12 PM
08/25/17 03:12 PM
Joined: Jul 2009
Posts: 596
texas
danez_yoda Offline
danez_yoda  Offline
Joined: Jul 2009
Posts: 596
texas
That carbon reises your compression ratio. Run some higher octane gans and put your foot in the gass tank and enjoy the few extrr HP. smile

Re: Cylinder Borescope 2010 Genesis Coupe @172k (pics) [Re: Lethal1ty17] #4497865
08/25/17 03:14 PM
08/25/17 03:14 PM
Joined: Jul 2005
Posts: 30,416
NY
demarpaint Offline
demarpaint  Offline
Joined: Jul 2005
Posts: 30,416
NY
The piston top looks good. A little bit of carbon protects the piston top. I'd leave well enough alone, and continue doing what you've been doing.


God Bless Our Troops

Re: Cylinder Borescope 2010 Genesis Coupe @172k (pics) [Re: Lethal1ty17] #4497867
08/25/17 03:17 PM
08/25/17 03:17 PM
Joined: Nov 2003
Posts: 1,114
Middle of Iowa
DriveHard Offline
DriveHard  Offline
Joined: Nov 2003
Posts: 1,114
Middle of Iowa
Seriously...what carbon? I see maybe a dot or two of it...but that is mostly bare metal


Smile, it increases your face value
2011 Silverado Crew Cab LT 6.2L/6spd
2017 Jeep Renegade Trailhawk (wife's)
2007 Nissan Xterra (trail toy)
2013 Fiat 500 Abarth (my DD)
Elio...?
Re: Cylinder Borescope 2010 Genesis Coupe @172k (pics) [Re: Lethal1ty17] #4497886
08/25/17 03:38 PM
08/25/17 03:38 PM
Joined: Sep 2010
Posts: 7,559
SE Texas
2015_PSD Offline
2015_PSD  Offline
Joined: Sep 2010
Posts: 7,559
SE Texas
Originally Posted By: Lethal1ty17
I would like to remove that carbon from the piston tops though.
Back in the days of carburetors, as part of the "shade-tree" tuneup, we would take a Coke bottle of water and use our thumbs to allow it to dribble into the carburetor at part throttle to "steam clean" the engine. There was an older guy who did this religiously and the combustion chambers and piston tops in his engine were shiny (from what we could see while changing the spark plugs).


2018 MB AMG GLC43 3.0L Coupe - Castrol 0W-40/Purflux
2018 MB C300 2.0L - M1 0W-40/OEM
2015 F-250 6.7L PS Diesel - Delo 15W-40/CQ Blue
2014 Explorer 3.5L Limited - M1 AFE 0W-20/FU
Re: Cylinder Borescope 2010 Genesis Coupe @172k (pics) [Re: Lethal1ty17] #4497888
08/25/17 03:42 PM
08/25/17 03:42 PM
Joined: Jul 2010
Posts: 855
TX
Lethal1ty17 Offline OP
Lethal1ty17  Offline OP
Joined: Jul 2010
Posts: 855
TX
I had actually considered a water injection into the intake to do just that.

Re: Cylinder Borescope 2010 Genesis Coupe @172k (pics) [Re: Lethal1ty17] #4497900
08/25/17 04:10 PM
08/25/17 04:10 PM
Joined: Jul 2007
Posts: 685
Chicago, IL
gomes512 Offline
gomes512  Offline
Joined: Jul 2007
Posts: 685
Chicago, IL
Looks good. I can see the coating of carbon on the cylinders. Not sure I'd do anything to clean it though.

But, awhile back I used Mopar's Combustion Chamber Cleaner product (not sure if it's still around) and it worked just like the water treatment. Spray it in while running, make a big smoke show and with last quarter volume of the can choke out the engine. You'd then spray an ounce in each cylinder and let it soak. Supposedly the soak helped clean up the rings to. Last Jeep 4.0 I did that to had shiny silver piston tops when I pulled the head immediately after. Initially they looked much like yours. Not sure about today's vehicles as id be concerned about the O2 sensors. Think I would pull all the O2 sensors and plug the holes with some kind of bolts and run a clean cycle that way. Seems like a lot of work for little to no reward though.

Re: Cylinder Borescope 2010 Genesis Coupe @172k (pics) [Re: Lethal1ty17] #4497934
08/25/17 04:47 PM
08/25/17 04:47 PM
Joined: Feb 2003
Posts: 7,421
Jupiter, Florida
Cujet Online content
Cujet  Online Content
Joined: Feb 2003
Posts: 7,421
Jupiter, Florida
The carbon on the piston and cylinder head is a bit of an insulator. It may be slightly beneficial for efficiency as less combustion heat (remember the heat does the expansion and therefore the work) is lost to the piston and head. Plus carbon increases the compression ratio a bit.


People who count on their fingers should maintain a discreet silence.
Re: Cylinder Borescope 2010 Genesis Coupe @172k (pics) [Re: Linctex] #4498007
08/25/17 06:10 PM
08/25/17 06:10 PM
Joined: Mar 2015
Posts: 5,018
Virginia
bbhero Offline
bbhero  Offline
Joined: Mar 2015
Posts: 5,018
Virginia
Good points Linctex. This looks very good in reality. The valve looks quite good to me as well. Good job here Lethal1ty17. I hope mine look this good as well. I have 199k miles on my Nissan Altima 3.5 VQ coupe.

Last edited by bbhero; 08/25/17 06:12 PM.

Nissan Altima 3.5 Coupe
Quaker State High Mileage 5w30 Purolator Boss 14610
"Treat your family like your friends and treat your friends like your family."
Re: Cylinder Borescope 2010 Genesis Coupe @172k (pics) [Re: Lethal1ty17] #4498614
08/26/17 11:34 AM
08/26/17 11:34 AM
Joined: Oct 2009
Posts: 3,947
Ohio
L_Sludger Offline
L_Sludger  Offline
Joined: Oct 2009
Posts: 3,947
Ohio
I'm impressed that you got those usable pictures out of a $30 borescope. Now you have my attention.

btw a water cleaning may be in your cylinders' future.


too many cars and oil combinations to list in 150 characters or less
Re: Cylinder Borescope 2010 Genesis Coupe @172k (pics) [Re: Lethal1ty17] #4498618
08/26/17 11:37 AM
08/26/17 11:37 AM
Joined: Apr 2017
Posts: 927
SF BAY AREA, CA
dogememe Online content
dogememe  Online Content
Joined: Apr 2017
Posts: 927
SF BAY AREA, CA
So, which borescope. I want one laugh


2007 Crown Vic P71 4.6 ~126K Miles, Royal Purple HPS 5W-30, Royal Purple Filter, Daily Driver, 5K OCIs.
2010 Escape FWD 2.5 ~84K Miles, Castrol Edge EP 5W-30, Wix Filter, Rented on Turo, 10-15K OCIs.
Re: Cylinder Borescope 2010 Genesis Coupe @172k (pics) [Re: Lethal1ty17] #4499416
08/27/17 12:21 PM
08/27/17 12:21 PM
Joined: Jul 2010
Posts: 855
TX
Lethal1ty17 Offline OP
Lethal1ty17  Offline OP
Joined: Jul 2010
Posts: 855
TX
https://www.amazon.com/gp/product/B01MYTHWK4/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

$38 I lied.

I set it to a higher resolution but it only got the 640x480 so I might have to go back in and get some more. I wish the videos had worked. Oh well, I'll do it again. I might do the water cleaning.


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