Welcome to the Corvette Forums at the Corvette Action Center!

Engine Wash in C5

Paul Douglas

Active member
Joined
May 5, 2005
Messages
27
Location
Tyler, TX
Corvette
2002 Quicksilver Coupe
I would like to wash the engine compartment in my '02 coupe, but don't know the safe way to do it. When I was a kid I would get a can of "Gunk" and spray it on. Then wash it off with a hose. This car is considerably more complicated, and I don't want to screw it up.. Any suggestions? Thanks for your input.

Paul
 
Joined
Apr 18, 2002
Messages
1,441
Location
Staten Island, NY
Corvette
1999 Torch Red Coupe
I would stay away from the old Gunk method. I used to love the smell of a freshly gunked motor. Remember the first few starts after the residue would burn off?


Anyway - Rags, toothbrushes and papertowels. You can spray Gumout on a the rags and wipe off road grease and dirt. Just keep it off of the plastic covers. Its strictly a by hand routine. I mostly use a spray household cleaner (Fantastic) and that works very well. I spray Armor All on the plastic and hoses after cleaning the engine and that also wrk great, though some dont like the shiney look.

Some sensors dont like harsh chemicals, and water collecting in places like under the plastic covers over the valve covers where the coil packs are wouldnt be to good.
 

Jistari

Well-known member
Joined
Aug 30, 2006
Messages
254
Location
New York
Corvette
2001 Black on Black A4 Coupe
I don't know......I'll fantastic it, and maybe a little armor all.....but no way I'm putting that much water on it :)

You guys really do that with no problems huh? (just asking)
 

BobbyG

Well-known member
Joined
Oct 29, 2006
Messages
80
Location
Rehoboth, MA
Corvette
2004 Z06 Millennium Yellow
Thats my method except I use simple green.

Couldn't agree more...:upthumbs

I do this to all my vehicles twice a year. I do remember the Gunk days way back in the early 70's.....Shoot, I must be getting old...;shrug
 

napacruzerC5

Well-known member
Joined
Oct 22, 2003
Messages
280
Location
Napa, CA
Corvette
'01 TR M6, '07 MS A6
Whatever you do, don't steam clean it. Steam will get into places you don't want. When steam cools it becomes water which will get into electrical connectors, etc.
 

BugMan

Active member
Joined
Jun 8, 2006
Messages
37
Location
Miami Beach, Florida
Corvette
04 Torch Red Convertible w Black Rag Top & 6 speed
Whatever you do, don't steam clean it. Steam will get into places you don't want. When steam cools it becomes water which will get into electrical connectors, etc.


Oops! that is what I have been doing for the last 30 years. I better stop. :confused
 

gmjunkie

Well-known member
Joined
Nov 11, 2004
Messages
4,547
Location
Old Fort NC/Vero Beach FL
Corvette
03 Z-51,78 L82 Coupe
Oops! that is what I have been doing for the last 30 years. I better stop. :confused
No,there all wet!!!! Thats all I use is my steam jenny!!! Steam and Water will evaporate!!!! Harsh Chemicals won't,Like Purple Power,Simple Green,409,Fantastic and others!!!(That Crap is Corrosive!!)People that apply that stuff and then hose or pressure wash just as well pour battery acid in all there wiring connectors and electronic components,cause thats all there doing over time anyway blasting it deep into the components and connectors!! :chuckle :chuckle The Only Opti-Spark I ever killed was the one I Slapped with a Tree Dead Center at 60 MPH!!!;LOL ;LOL ;LOL :upthumbs :D
 
Joined
May 10, 2002
Messages
2,254
Location
Boise, Idaho
Corvette
2002 electron blue Z06
I also use a pressure washer at the car wash. I am careful where I spray, how close I hold the tip, etc. I have had no problems.
 

TODD L GRIFFITH

Well-known member
Joined
Jul 12, 2001
Messages
1,120
Location
Middleboro, MA
Corvette
99' MR Coupe, 04' Silverado 03' ZO6 Sold
I've used the pressure washer on it without any problems. The one thing I do is make sure that the motor is stone cold, leaving the car over night before I put the cold water on it. You can probably do it with the engine running, but for me, I rather leave it overnight. Using some degreaser isn't going to hurt it as long as you don't use any harsh chemicals, and don't leave it on that long. My results have always been positive.
 

j84buick

Member
Joined
Jun 6, 2006
Messages
19
Location
Central MN
Corvette
2000 Torch Red Coupe
Beware of the old simple green on these cars. I heard from a old vette engineer about the seals (or something like that) under the intake manifold that water can collect and eat away at it. I do a gentle hose down (once in a while) and then a gentle hand rub. On the old cars with the small block chevys I would GUNK them up.
 

TopDownCruzin03

Active member
Joined
Sep 19, 2006
Messages
36
Location
Houston, Tx
Corvette
2003 6sp conv.
I've been using a water hose on my '03 for 4 years. I figure if I can drive it through a rain storm with no problems then a low pressure water hose won't hurt it.
 
B

BogSpores

Guest
I acquired a Culigian water softner (for a house) that I hooked up in my garage and use strictly for washing the cars...It works WONDERS!...the water beads off just like the system sold by the bald guy (I can't remember his name?)...

Using the soft water, miracle rags, and elbow grease on the engine seems to work fine...

So far, using low pressure water on the engine hasn't created any problems...
 

DocOhm

Well-known member
Joined
Mar 5, 2005
Messages
61
Location
Okla.
Corvette
2001 Coupe QuickSilver A4
I clean my engine 3/4 times a year at the car wash using the rinse selection (no soap). Leave the motor running at idle. Lightly spray it off, keep your distance of 3 or 4 ft from the motor with the wand, no high pressures that way. Then shut it down and dry off the motor and under the hood.
I used to use the Gunk method way back when on my 71 Pontiac....
STW, Doc
 

douglas foster

Well-known member
Joined
Aug 18, 2005
Messages
226
Location
minnesota usa
Corvette
1984 C4 Gold coupe, Z51, 4+3 manual, BBS rims,
father & son

vette-5.jpg
vett4-02.jpg
I use a small paint brush taped to a 1 1/2ft. wood stick,to get to hard to reach areas. apply a lite degreaser to brush and clean area. Use shop towels and tooth brushes to clean other sections of engine, that are easy to get at. I don't use any water it leaves spots ect:. Then i sqirt a fine mist of Armorall over all of engine area. work in with paint brush, then wipe off.
vett4-04.jpg
 

RoadReady

Well-known member
Joined
Sep 5, 2003
Messages
175
Location
Savannah, Tennessee
Corvette
Torch Red C5 coupe

Hey, you can't knock a system that works this well!!

Be careful with the citrus-based cleaners. I read somewhere that they can discolor aluminum.

I tried several products to give the engine bay a shine, but they all seemed to attract and hold dust and dirt. The all time worst was the advice to spray your engine compartment with tire cleaner/shine. Ugh, what a mess!
 

Old Dog

Well-known member
Joined
May 29, 2006
Messages
61
Location
Augusta, Me
Corvette
2002 Mag Red Vert
All that by hand stuff seems like a lot of work, I like the
Total Immersion method, although it does have a few disadvantages
that need to be worked around. :D
attachment.php
 

Corvette Forums

Not a member of the Corvette Action Center?  Join now!  It's free!

Help support the Corvette Action Center!

Supporting Vendors

Dealers:

MacMulkin Chevrolet - The Second Largest Corvette Dealer in the Country!

Parts/Accessories:

Vetteskins

Advertise with the Corvette Action Center!

Double Your Chances!

Partners

Top Bottom