Removing Carbon From Piston, Cylinder Walls, and Block Deck

[dom14]

I found below video is pretty useful as a guide for the above jobs.

Removing Carbon From Piston, Cylinder Walls, and Block Deck (https://www.youtube.com/watch?v=ZlGgkJQJM90)

[mudnut]

I find it interesting that some "old-school" mechanics would leave the carbon build-up as it improved the compression. Taking into account that I am by no means a learned person, this is the first time I've heard that a hot spot can occur due to the build up. The WD4O does a great job at removing most of the carbon, though.

[garett]

subaru upper engine clean.

[dom14]

I find it interesting that some "old-school" mechanics would leave the carbon build-up as it improved the compression. Taking into account that I am by no means a learned person, this is the first time I've heard that a hot spot can occur due to the build up. The WD4O does a great job at removing most of the carbon, though.

Yeah, they do, and that is the case with excessive compression in mine(I bet even though I haven't pulled the head yet to see).
The problem is that it makes it an absolute PITA with the tuning of the engine, both carby wise & ignition timing wise, 'cos of the hot spots.
So, I don't think it is beneficial overall to have shyte loads of carbon buildup. A little bit, may be.
Particularly the thick layer of carbon build up on the piston crown is a real PITA with engine performance, and better have it scraped off.

[dom14]

subaru upper engine clean.

Bloody expensive though. I used plain water instead. :D
I bet there is a backyard chemical alternative that we can add to water. (speculating stuff like detergent, vinegar, etc, :D)
Water definitely cleans the spark plug soot buildup & bit of piston crown soot buildup.
How about Seaform stuff?!!

https://www.youtube.com/watch?v=agAWXnT4-EQ

[dom14]

Do you guys know a local retailer(either online or shopfront) that sells below bristle discs??!!

http://www.ebay.com.au/itm/3M-Roloc-Original-Bristle-Disc-50-mm-Cleaning-brush-Plastic-brush-New-/262195782021?var=&hash=item3d0c162185:m:m8sTJvgBUBS-fVh_RyCKLcQ

https://www.youtube.com/watch?v=zoEh3sq_s1U

I have the damn air tool, but can't locate the bristle discs.

[garett]

you could spend 3 days cleaning or just spray it with the suby cleaner wait 10 min then wipe it off.

[dom14]

you could spend 3 days cleaning or just spray it with the suby cleaner wait 10 min then wipe it off.

Ok, cool.:)
A cleaning product that costs $75 is something that demands booze before making the decision to get it. ;) :D :cheers:

[garett]

Ok, cool.:)
A cleaning product that costs $75 is something that demands booze before making the decision to get it. ;) :D :cheers:

it's should be about 20-30 bucks a can..