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What to use to clean this up?
#936609
02/24/11 08:18 PM
02/24/11 08:18 PM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
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Marysville, O-H-I-O
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just doing a basic cam swap to this motor, but also pulled the heads for a quick inspection, and maybe a little gasket matching on the ports, change the valve springs for the new cam, etc.
anyway, what should I use to clean up the carbon on the cylinder walls, piston tops, etc. also, the decks are covered in some sort of grey stuff, not sure if it came off the head gaskets or what, but it almost looks like someone used grey RTV spread very thin over the entire deck.
I do not plan to pull the crank, rods or pistons out of this motor. it's hard to tell in the pic, but the walls look good in my opinion, I still see some of the factory cross hatch.
(this is an 01 5.9L magnum, supposedly it has around 70K miles on it, but one of the heads have a re-manufactured sticker on it, so I don't know if just that head was RnR'd at some point, or if the whole motor is a reman.)
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Re: What to use to clean this up?
[Re: 70Cuda383]
#936610
02/24/11 08:19 PM
02/24/11 08:19 PM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
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cylinder walls...
should I even bother about any of this? or just make sure all the chunks of carbon build up are knocked off and clear of the pistons?
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Re: What to use to clean this up?
[Re: 70Cuda383]
#936611
02/24/11 08:21 PM
02/24/11 08:21 PM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
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Also, does anyone know how the factory pistons were marked? were any of them marked with a part number, or was it a hit or miss deal?
#6 piston has a part number on it, but only #6. that's also the side that had the head with the re-manufactured sticker on it...maybe perhaps this motor had a problem at some point that took out a piston and head, and they swapped that one piston and head out?
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Re: What to use to clean this up?
[Re: 70Cuda383]
#936612
02/24/11 09:16 PM
02/24/11 09:16 PM
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Joined: Apr 2003
Posts: 12,248
Looking for a way out of Middl...
IMGTX
I Live Here
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I Live Here
Joined: Apr 2003
Posts: 12,248
Looking for a way out of Middl...
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The grey stuff is where the head gasket delaminated or is the coating on the head gasket. No biggie but yes clean it off. I wouldn't worry about the carbon buildup. It is minimal and unless you want to pull the pistons I wouldn't bother. Scrape the deck, check it for flatness since you are there and if you get crap in the cylinders use a shop vac to clean them. I would pull the rod and main caps off to check the bearings. Now is as good as it gets. If you do not already have the 8 hole oil filter plate make one. Looks good. 
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Re: What to use to clean this up?
[Re: 70Cuda383]
#936621
02/25/11 12:50 AM
02/25/11 12:50 AM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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turn the eng on the stand so each deck you are working w is almost all the way on the bottom so the debris falls straight down on the ground rather than elsewhere which is the #1 prob w this. As said the grey is from the head gaskets & use the scraper handle w the double edged razor blade you insert, hold it shallow so no gougeing. Bring each piston a bit down from TDC & grease the edge then bring it up higher to seal the edges & keep any debris from going down into the rings then lightly scrape the piston top w a small steel brush (no need to get it all) & vacuum it out if the eng is upright or easily brush it out if it is upside down as it should b when you scrape the head gasket remnants off of the decks as there's too many holes (& opportunities) for debris to fall in. Upside down for the deck/either way for the pistons but upside down for both is foolproof EDIT meant single edge razor blade
Last edited by RapidRobert; 02/25/11 05:35 PM.
live every 24 hour block of time like it's your last day on earth
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Re: What to use to clean this up?
[Re: Evil Spirit]
#936622
02/25/11 12:50 AM
02/25/11 12:50 AM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
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Thanks for the input guys! I just might leave the carbon alone for the most part.
definitely need to clean up the decks though. thing is, the stuff seems gummy, not like stuck papery stuff. I'll try a solvent or something first, a razor blade second. I don't know that I like the idea of debris fling all over the place from a spinning wheel of any type. especially since I don't really want to tear this down further for more cleaning. these 5.9Ls are good for 200K miles when they are maintained, this one is still fairly new (even at 70K miles, like I said, I can still see cross hatch!) If I can save money on rings/bearings by not tearing it apart further, that's great!
I will pull a cap or to and inspect, as long as it's good, then it all stays together...and everything's looked great so far!
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Re: What to use to clean this up?
[Re: 440PURSUIT]
#936625
02/25/11 02:49 AM
02/25/11 02:49 AM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
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Cincinnati, Ohio
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Quote:
Rolock Pads are a Bozo NoNo! They leave metal debris that can wipe your bearings and damage rings. Production mechanics use them to get the job down the road and never see it again. Play it safe and scrape the surfaces!
 
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Re: What to use to clean this up?
[Re: Challenger 1]
#936626
02/25/11 02:58 AM
02/25/11 02:58 AM
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Joined: Jan 2007
Posts: 1,668
Mi,U.S.A.
mike s
top fuel
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top fuel
Joined: Jan 2007
Posts: 1,668
Mi,U.S.A.
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That is the graphite coating from the head gasket on the deck.Use a small razor blade to remove it.(don't forget the gloves).
Leave the gun.......take the Cannoli's....Mike
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Re: What to use to clean this up?
[Re: 340SHORTY]
#936627
02/25/11 08:27 AM
02/25/11 08:27 AM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
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Marysville, O-H-I-O
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Quote:
the carbon will help to raise the compression, by the looks of those pistons it will help.... 
yea, a .020 cut on the heads, and a thinner head gasket (OEM was .054) should help me on that front. maybe some day down the line after I have my Cuda finished and back on the road, I'll pull this out and do a full rebuild on it..but for now, just a good once over, put it back together and go.
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Re: What to use to clean this up?
[Re: Challenger 1]
#936628
02/25/11 10:48 AM
02/25/11 10:48 AM
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Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
These little wheels from 3M are real handy for cleaning up the deck surface and the top of the piston. Use a drill or die grinder. Auto parts store that sells 3m will have them.
I would not use anything like these. They break down and the fibers get everywhere and end up clogging your pick-up. Unless you plan on taking it down to the block and having it tanked I'd probably just soak it down w/ carb cleaner then scrape w/ a gasket remover then hit it w/ brake clean and be done.
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