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Gonna Clean the engine

S

Striker 85

Guest
I want to clean all the garbage off the engine and repaint it before I start puting all the new parts on (sat for 18 years). I am looking to see what other people have had good luck with getting all the gunk off. I used Simple Green on parts of my 85 with success, but this is the complete engine I want to clean, with lots of oil build up.

Thanks:W
 
Joined
Nov 23, 2002
Messages
1,060
Location
Motorcity USA
Corvette
1973 L-48 Coupe
Try this...

to get the worst stuff of an engine, try a good stiff parts washing type brush and a quart of transmission fluid... nothing cuts grease/thick oil like thin oil...and it give you a really good look at the rubber after blasting it off with a power sprayer. becarefull not to get it on your belts, other than that, you will be shocked at how well this works, you will need to use the brush to work at the thick stuff , but it will cut through it all...then you can go to an engine degreaser to go through the prep work.
dont forget to park over some old broken down cardboard boxes to soak up the run off.
Chas
 

Vette79

Well-known member
Joined
Jan 23, 2007
Messages
1,392
Location
Millersville, MD
Corvette
1979 L-48 Black Coupe
Silly question here. Is it OK to clean the motor at all with the perception of possibly introducing the Rust Factor? I want to clean my motor as well but fearful of doing more harm then good. IE: rust, not starting, something no longer works now, etc...
 

oceangal

Well-known member
Joined
Jun 28, 2005
Messages
581
Location
Merrimac, MA
Corvette
1982 silver/claret
I know Rick use Oven Cleaner on his firebird but I am not sure on what parts - or if it was just on the firewall and frame. Works good, smells awful.He is asleep or I would ask him. He does go through a lot of brake cleaner kind of stuff and wire/plastic brushes. Once some of the parts are cleaned of the gunk i take the bracket type stuff over to the bench grinder and clean them up on the wire wheel. Then they get painted again. Long tedious work but so rewarding.
 

psw5940

Member
Joined
Apr 17, 2005
Messages
16
Location
Jax
Vette79,

I had those same apprehensions. I've only done my engine bay once, and it turned out great. I had no problems.

I used plastic trash bags to cover the distriutor, alternator and carb. I had a couple of electronic relays I was unsure of so a I wrapped them in plastic as well.

I used Simple green in a 50/50 water solution,cranked the eng. so it would warm up , sprayed everything down good, waited about 15 minuets. Used a garden hose with a spray nozzel on light spray. Used a brush for the stubborn areas.
Removed the plastic, fired the engine and took a drive.
I was surprized how well it cleaned.
 

fine69

Well-known member
Joined
Dec 12, 2004
Messages
975
Location
Maryland / D.C.
Corvette
'69 Convertible Vette; '72 Z28 Camaro Rally Sport
I did mine in different sessions. The first sessions were to get rid of thick greasy crud. I used the cheap Advance Auto brand engine degreaser along with plastic scrapers, and various sized stiff brushes. After the heavy stuff was cleaned off, I did additional sessions applying a solution of Simple Green using a pressure wand (hooked up to an air compressor).

Between sessions, I rinsed with a power washer (using appropriate sized nozzle tip) with relatively hot water running through it. Then I used compressed air to dry everything.

Be prepared to GET WET!... especially when cleaning and rinsing the under-carriage; unless you have an auto lift, you'll also have to lay in the water!

I used POR-15 engine paint. The paint formula does not utilize cheap solvents that evaporate quickly, and contains more paint compounds than solvent - so it takes at least 24 hours to dry. The result is a nice deep tone, with a glossy and very durable finish that you'll never get with spray can paint.
 
Joined
Apr 8, 2005
Messages
274
Location
Charleston, SC
Corvette
1981 Dark Blue Metallic, 2003 AE coupe
Aluminum foil works great for wrapping small connectors and the sort before cleaning or painting. Just form-fit it around and squish tight.
 
S

Striker 85

Guest
Thanks but Global Warming

Thanks for all the ideas. Like I said, I used simple green on my 85 and it turned out great. I was going to work this weekend on it, but we have a blizzard so global warming is keeping me from the 69....Thanks AL
 

Rain

Well-known member
Joined
Mar 3, 2003
Messages
1,816
Location
MS Gulf Coast
Corvette
2000 Coupe 6 speed
Careful with the Oven Cleaner -
It removes paint!
 

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