badazz81z28

iTrader: (6)

Lucky for me my engine had the MLS gasket so nothing really to scrape off. To clean it tho...what should I use to make it squeeky clean for proper gasket sealing?

Darkman

iTrader: (2)

I use a chemical named "Peso" sold at paint stores. It leaves no residue.

dodson55

iTrader: (18)

i use a razor blade to scrap it then brake cleaner to spray it off then dry everything with shop air

redtail2426

iTrader: (10)

wd-40 works really well with a non-abrasive pad

conv55

I used automatic trans fluid with mild scuff pad and worked great, be careful the aluminum is soft in that area.

BrntWS6

iTrader: (7)

3m sanding disks from autozone with air tools. You'll have both sides clean in 10 minutes. Just cover sensitive areas up real well.

rickyzZ28

iTrader: (28)

I have never used a sanding disk on any aluminum block as I was always under the impression that they take a little material off with them, which is not what you are trying to do. I always use a gasket scrapper with light pressure and then a product called Pre-Clean which is a chemical that leaves no residue as its real purpose it to make sure metal surfaces are clean before you paint. If there is anything left I will use a flat blade razor with very, very light pressure.

BrntWS6

iTrader: (7)

I think your supposed to use the yellow 3m roloc disks, their safe for aluminum. I personally wouldn't put a razor on the block, way too easy to gouge it and end up with a gasket leak.

hcb1700

iTrader: (9)

I just use a razor blade, and some break cleaner then wait a bit, and give it another pass with the blade. I just can't trust any sanding disk on such an important area, especially when dealing with aluminum.