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Do you use Roloc discs to clean gasket surfaces? #1513620 10/07/13 05:52 PM 10/07/13 05:52 PM
Joined: Jul 2010 Posts: 2,091 Delray beach, Florida P Performance Only OP top fuel
Performance Only OP top fuel P Joined: Jul 2010 Posts: 2,091 Delray beach, Florida	Here's a good reason not to. 7879374-after.004cut.JPG (614 downloads) Last edited by Performance Only; 10/07/13 05:53 PM. machine shop owner and engine builder

Re: Do you use Roloc discs to clean gasket surfaces? [Re: Performance Only] #1513621 10/07/13 06:00 PM 10/07/13 06:00 PM
Joined: Dec 2009 Posts: 20,640 in a cattle trailer down by th... G Guitar Jones Paddle faster! I hear banjo music!
Guitar Jones Paddle faster! I hear banjo music! G Joined: Dec 2009 Posts: 20,640 in a cattle trailer down by th...	Yes I do but only very slowly and lightly and never on a head gasket sealing surface or aluminum. "Follow me the wise man said, but he walked behind" '92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon! 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.

Re: Do you use Roloc discs to clean gasket surfaces? [Re: Performance Only] #1513622 10/07/13 06:02 PM 10/07/13 06:02 PM
Joined: Jan 2003 Posts: 3,831 N.E. Ohio 6bblFLASH master
6bblFLASH master Joined: Jan 2003 Posts: 3,831 N.E. Ohio	Yep,thats the problem 70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas 9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ! 2013 StickShift Challenge Winner@ Mopar Nationals!

Re: Do you use Roloc discs to clean gasket surfaces? [Re: 6bblFLASH] #1513623 10/07/13 06:15 PM 10/07/13 06:15 PM
Joined: Jan 2003 Posts: 6,266 Renton Washington T Triple Threat master
Triple Threat master T Joined: Jan 2003 Posts: 6,266 Renton Washington	Guilty, those scotch brite ones are so handy! -Dustin 67 Dart, 9 second, 392" G3 Hemi 68 Barracuda 340 F/SA

Re: Do you use Roloc discs to clean gasket surfaces? [Re: Triple Threat] #1513624 10/07/13 06:17 PM 10/07/13 06:17 PM
Joined: Jun 2006 Posts: 5,161 CT GTX MATT master
GTX MATT master Joined: Jun 2006 Posts: 5,161 CT	Didn't anyone teach you how to color in between the lines? Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street

Re: Do you use Roloc discs to clean gasket surfaces? [Re: GTX MATT] #1513625 10/07/13 06:23 PM 10/07/13 06:23 PM
Joined: Aug 2003 Posts: 1,062 Amherst,NY challengermike super stock
challengermike super stock Joined: Aug 2003 Posts: 1,062 Amherst,NY	correct me if im wrong but it looks the block wasn't decked enough. The marks don't look like a cookie disc. And why would you cookie around the cylinder and not around the hole gasket surface.

Re: Do you use Roloc discs to clean gasket surfaces? [Re: challengermike] #1513626 10/07/13 06:35 PM 10/07/13 06:35 PM
Joined: Oct 2012 Posts: 235 Gilbert AZ tsanchez enthusiast
tsanchez enthusiast Joined: Oct 2012 Posts: 235 Gilbert AZ	Scotchbrite is a good way to kill a engine, the abrasive will get in the oil and trash bearings, or if you are incapable of using a buffer wheel you will end up wit surface damage,

Re: Do you use Roloc discs to clean gasket surfaces? [Re: Performance Only] #1513627 10/07/13 07:27 PM 10/07/13 07:27 PM
Joined: Jul 2010 Posts: 2,091 Delray beach, Florida P Performance Only OP top fuel
Performance Only OP top fuel P Joined: Jul 2010 Posts: 2,091 Delray beach, Florida	That first picture was after taking .004 off the deck. In this one you can see more clearly where the Roloc disc dug in a little harder. Obviously the blue spots are the LOW spots. 7879508-after.005cut.JPG (390 downloads) Last edited by Performance Only; 10/07/13 07:29 PM. machine shop owner and engine builder

Re: Do you use Roloc discs to clean gasket surfaces? [Re: Performance Only] #1513628 10/07/13 07:31 PM 10/07/13 07:31 PM
Joined: Jul 2010 Posts: 2,091 Delray beach, Florida P Performance Only OP top fuel
Performance Only OP top fuel P Joined: Jul 2010 Posts: 2,091 Delray beach, Florida	Here it is after .006 off the deck. 7879513-after.006cut.JPG (319 downloads) machine shop owner and engine builder

Re: Do you use Roloc discs to clean gasket surfaces? [Re: Performance Only] #1513629 10/07/13 07:34 PM 10/07/13 07:34 PM
Joined: Jul 2010 Posts: 2,091 Delray beach, Florida P Performance Only OP top fuel
Performance Only OP top fuel P Joined: Jul 2010 Posts: 2,091 Delray beach, Florida	And here is the finished deck cut .008" The problem is that some engines don't have gaskets available to make up the difference. This one happens to be supercharged, so .008 off ther deck and about the same off the head just about takes this little guy out of pump gas range without doing some other creative things to keep the pistons from hitting the chambers. 7879518-after.008cut.JPG (241 downloads) machine shop owner and engine builder

Re: Do you use Roloc discs to clean gasket surfaces? [Re: Performance Only] #1513630 10/07/13 07:37 PM 10/07/13 07:37 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	Thanks for sharing. Do you think it would have lived with just .006" off? Is .002" enough to worry about one way or another? Can you take .008 off the top of the pistons if you can't do it with head gaskets?

Re: Do you use Roloc discs to clean gasket surfaces? [Re: challengermike] #1513631 10/07/13 07:40 PM 10/07/13 07:40 PM
Joined: Jul 2010 Posts: 2,091 Delray beach, Florida P Performance Only OP top fuel
Performance Only OP top fuel P Joined: Jul 2010 Posts: 2,091 Delray beach, Florida	Quote: correct me if im wrong but it looks the block wasn't decked enough. The marks don't look like a cookie disc. And why would you cookie around the cylinder and not around the hole gasket surface. You'd have to ask the owner for the answer to that. He did tell me he used a cookie to clean the deck and that's exactly what it looks like. I see this kind of thing all the time. Had he not "cookied" it, we could have taken .002 off the deck and all would've been clean and straight. Now he'll be doing some chamber work on the heads instead. In the end it's no big deal to me, the machine's doing the work, but I thought I'd share this little tidbit for anyone thinking of doing something similar. machine shop owner and engine builder

Re: Do you use Roloc discs to clean gasket surfaces? [Re: Performance Only] #1513632 10/07/13 07:47 PM 10/07/13 07:47 PM
Joined: Nov 2009 Posts: 3,410 Belpre,Ohio C CHAPPER master
CHAPPER master C Joined: Nov 2009 Posts: 3,410 Belpre,Ohio	Who cares what the dumb tuners do?? Don't look like a Mopar that we mess with to me. If you like drag racing, support your local track.

Re: Do you use Roloc discs to clean gasket surfaces? [Re: CHAPPER] #1513633 10/07/13 08:00 PM 10/07/13 08:00 PM
Joined: Mar 2010 Posts: 341 Highland beach Fl P poisondart2 enthusiast
poisondart2 enthusiast P Joined: Mar 2010 Posts: 341 Highland beach Fl	Dan, I will write this down so I dont make the same mistake. Dont use a cookie on a block and who would of ever thought a cookie would do well anyway

Re: Do you use Roloc discs to clean gasket surfaces? [Re: poisondart2] #1513634 10/07/13 08:15 PM 10/07/13 08:15 PM
Joined: Apr 2006 Posts: 3,675 Akron, Ohio U.S.A. roadhazard master
roadhazard master Joined: Apr 2006 Posts: 3,675 Akron, Ohio U.S.A.	Some people just shouldn't have tools in their hands

Re: Do you use Roloc discs to clean gasket surfaces? [Re: Performance Only] #1513635 10/07/13 08:24 PM 10/07/13 08:24 PM
Joined: Nov 2004 Posts: 3,544 Syracuse,NY CompWedgeEngines master
CompWedgeEngines master Joined: Nov 2004 Posts: 3,544 Syracuse,NY	Was the damage done with an oatmeal raisin, or chocolate chip cookie? In all seriousness, I have seen the damage from cookies as well, and also the leftover from Scotchbrite pads, Most people simply cant, or dont clean things well enough, and you may as well throw a handful of fiberglass dust in some of these things and get better results....you really need to be careful with any Scothbrite type products as shown here for sure. RIP Monte Smith Your work is a reflection of yourself, autograph it with quality. WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.

Re: Do you use Roloc discs to clean gasket surfaces? [Re: CompWedgeEngines] #1513636 10/07/13 08:49 PM 10/07/13 08:49 PM
Joined: May 2005 Posts: 1,130 Dayton, Ohio W wldtm super stock
wldtm super stock W Joined: May 2005 Posts: 1,130 Dayton, Ohio	What are you suppose to use? The plastic scraper idea is crap! The picture proves a nice point. Unfortunately, if a machinist gets a hold of an engine that a flat rate technician has touched it probably had a roloc bristle or scotch style touch the engine. If anyone has a better way to clean a sealing surface that is aluminum or iron, I am all ears. Thanks for the picture Justin Interested in having you car wired? Drag car, street car, EFI swap? PM for details

Re: Do you use Roloc discs to clean gasket surfaces? [Re: wldtm] #1513637 10/07/13 09:25 PM 10/07/13 09:25 PM
Joined: Oct 2010 Posts: 2,407 Ambridge, Pa. R rickraw top fuel
rickraw top fuel R Joined: Oct 2010 Posts: 2,407 Ambridge, Pa.	They sell a gasket remover in spray form. Scotch pads are what make gaskets weld to the metal cos of all the fine scratches. Besides that, u make a machined surface too irregular.

Re: Do you use Roloc discs to clean gasket surfaces? [Re: Performance Only] #1513638 10/07/13 09:25 PM 10/07/13 09:25 PM
Joined: Nov 2009 Posts: 3,410 Belpre,Ohio C CHAPPER master
CHAPPER master C Joined: Nov 2009 Posts: 3,410 Belpre,Ohio	Is this a block that was done at your shop originally, and having a freshen up..??..or is this a block that was brought to you for a new build?? I'm suspecting it is a new build. The deck being off is to be expected. The cleaning with the scuffy pad(if used correctly) would not cause that much damage. If you like drag racing, support your local track.

Re: Do you use Roloc discs to clean gasket surfaces? [Re: CHAPPER] #1513639 10/07/13 09:44 PM 10/07/13 09:44 PM
Joined: Jul 2010 Posts: 2,091 Delray beach, Florida P Performance Only OP top fuel
Performance Only OP top fuel P Joined: Jul 2010 Posts: 2,091 Delray beach, Florida	Quote: Is this a block that was done at your shop originally, and having a freshen up..??..or is this a block that was brought to you for a new build?? I'm suspecting it is a new build. The deck being off is to be expected. The cleaning with the scuffy pad(if used correctly) would not cause that much damage. No offense, but you're way off on this one. Look at how flat the one end of the block is. It was perfectly flat. Then look at the area's where the roloc disc removed metal. I see this all the time. All the marks where the dye is left that looks like circular pattern is from metal being removed by the roloc disc. I've seen much worse than this one, but in an effort to dissuade others from making the same mistake, this is the one I took some pictures of. Please don't insult me by trying to tell me those disc's didn't do that. The owner admitted he used them and realized afterwards that it was a mistake when he saw the damage. As far as how do you get the gaskets off, I'd tell you use a gasket remover spray with a scraper, or let your machinist deal with it. machine shop owner and engine builder

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