Engine Detail 'How To' Walk Through w/Pics

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Hey everyone,

Just wanted to sort of a 'how to' write up on engine detailing. It really gives your ride that last 'edge' that it needs to look complete after having the paint polished and all the other little detailing goodies done to it (trim,tires,rims etc)

An engine detail can actually be a lot easier than you think if you are just careful, do a little prep work and have a couple decent products to work with.

My typical engine detail consists of the following supplies/products:

Hose (duh) with nozzle or pressure washer if available (Steam cleaner can also be used but pressurized water is nice for lower parts that need cleaning)

Microfiber and terry cloth towels

Gloves (latex/rubber or something equivalent)

All Purpose Cleaner and/or Degreaser (i use meguiars APC+ and Degreaser diluted 4:1)

A few brushes (old tooth brush, cheap paint brushes and spray gun cleaning brushes are all good choices, especially the paint brushes)

Bucket of water (to rinse out your brushes with if your engine is really bad)

Plastic bags or aluminum foil (for protecting alternator and other sensitive electrical components)

Shade!

Flashlight/work light (working in the shade is a must, but it also makes seeing just how clean things REALLY are rather difficult).

A final dressing (I use Meguiars Hyper-Dressing but other rubber/vinyl dressings can also be used).

A wax or spray wax for painted areas.






Now for this write up I"m not going to be picky as far as what model engine I use to demonstrate what to do lol, I just picked a couple of the dirtiest engines I've worked on.

For starters, lets look at what you'll probably end up seeing when you lift the hood if you've never had your engine detailed...in this case, it hadn't been detailed in a couple decades

Engine_Center_Before3.JPG


This is a 1988 Honda Civic engine. The paint itself had more swirls than you can imagine and quite frankly matched how bad the engine looked lol. So as I'm sure you can figure, if the paint wasn't even cared for, the engine wasn't even thought of until we talked to the owner.

Now looking at all this might at first be a little overwhelming, but you absolutely can make it MUCH better with a little time and patience.

Important things: DO NOT get your alternator, spark plugs, fuse box or other sensitive electrical equipment wet. A pressure washer, while very strong...actually uses less water than a garden hose (most times) so you will use LESS water, but still have power to cut dirt. Use it at a distance if you do go this route, you want it to be almost more 'air pressure' coming from it to help w/cleaning than an actual heavy flow of water. If you go with a pressure washer...I advise you to be careful what parts you use it on. Usually I'll even when working with one, i'll still go with just wiping certain areas down by hand till i get them clean, such as fuse boxes or around spark plug connections.

A Garden hose set on 'mist' can be very helpful for sensitive areas like NEAR (not on) the alternator or fuse box etc. I sometimes like to use a stronger setting for lower areas where there isn't so much electrical equipment around, but up top near the plugs etc...the less water you can use the better....thats why we use degreasers!

If you want to be extra careful, take a plastic bag (like from wal-mart) and bag off your alternator, air intake and any other electrical things that you don't want to get wet. Aluminum foil works great too because you can mold it around anything. If a little water hits something it wont be the end of the world, but a good amount can do damage. I've done quite a few engines ranging from this little Honda, all the way up to very expensive Vettes and Challengers with custom modifications under the hood...and so far (knock on wood) have had no issues...just use common sense and take your time and all should be fine.

SO, after you have bagged off the caution areas, whats next? Well i'd say assess what you're working with. In the case of this honda, it is very DIRTY, but not so greasy. There is a difference.

I'd recommend putting your gloves on at this point to save yourself the hassle of scrubbing God knows what offer your hands later. Plus, these degreasers and all purpose cleaners can dry your skin out and make it peel (i know trust me), so use the gloves, they help.

If you're dealing with just dirt, then i'll usually go with the All Purpose Cleaner. Make SURE the engine is cool, make sure you are in the shade because if you spray a cleaner onto a hot surface, especially if you have some nice chrome mod's, the cleaner can stain the surface. On rubber and plastic you usually don't have to worry, but do a test area on any painted/chromed pieces under the hood to make sure the cleaner will not stain the finish.

Next, if you have any big things like leaves, sticks, small animals or other unwanted large items lol....either brush them off by hand, use a shop-vac to suck them up, or use some compressed air to blow them out or call animal control to give you a hand (hey i've heard of snakes and alligators making engine bays their homes!)

I would recommend cleaning the underside of the hood next...so that way if you end up having any dirt etc. rinse down..its only going to run onto a small area thats already dirty, not onto a clean area that you'll have to RE-clean.



Engine_Center_Before_2_.JPG


(Toyota Tacoma Engine, looked like someone refilled the oil but forgot to put the cap back on when they finished...oil bomb!)


I usually divide areas into sections. So i'll spray about 1/4 of the engine with APC (or degreaser if you're dealing with heavy grease like on the engine above).

Let the cleaner set for a few seconds, then start working with your brushes to agitate the dirt. If its light dirt, not a lot of pressure is needed, you're just loosening it up. Now if its caked on grease like what is seen on the hood in the above picture...you will need to work it.

In the case of the hood, you're dealing with PAINT...and you don't want to scrub the paint too hard because you can scratch it OR even remove it. So go slowly. Same goes for any finished pieces with chrome or paint...don't scrub it like you're scrubbing your tub...use force but don't kill it...you don't want to mar anything. Now with those rubber hoses and such, they're pretty tough so you can lay into them a little more if needed. Just make sure no matter what you're cleaning, try not to let the cleaner COMPLETELY dry...if its drying faster than you can work...spray a smaller section next time or just rinse as you go.

In the case of the hood above, i used a steamer to loosen the grease (pressure washer would have blasted it off faster but a lot of water would have run uncontrolled onto the engine) and a soft tooth brush to scrub it.

Engine_Cleaning_2_.JPG


If a steamer is unavailable, don't fret. Just use a spray bottle with your cleaner in it. Just be sure to clean your brush often in a bucket of water, or else you'll just end up smearing the grease all over.

If you look closely, you can see the left half of the hood has already been cleaned (nice and gold)...but the whole right half (the part im working on) is quite black.

If you're dealing with just dirt, after using your brushes on the areas, go ahead and rinse the area you cleaned. Try not to get too much water on the area you haven't yet cleaned. The reason for this is, if you get water onto an area you havent used your cleaner on yet, the water is going to dilute your cleaner after you spray it and thus weakening its cleaning ability.

When you're finished it should look like this :

Engine_Hood_Finished.JPG


Next, move to your next 1/4 of the engine. Remember to work from the top down...so clean the higher parts first...wash the dirt down, and if you see anything lower you want cleaned work on it second.

Go ahead and complete all of your 4 quarter sections, then give a general dry of everything. Not perfect but, enough to tell if its REALLY clean, or if it just looks clean because its wet. Plus the wipe down will help remove any leftover dirt that the rinse may not have washed away. Use your light to really inspect everything. Obviously some places are just impossible to reach...thats a given, but if you're crafty most areas you can get to in one way or another...just do the best you can.

If you have any places that need more work...go ahead and address them and make sure everything is as clean as possible. The better the prep work/cleaning, the better the finished product will be after you apply the dressing.

If all looks good, go ahead and break out the dressing. As i stated above, i use Meguiars Hyper Dressing. I like it because it comes in a concentrate if you buy a gallon and you can mix to whatever sheen/shine you want. From high gloss mixed 1:1...to a more natural look at 4:1...I usually use 2:1 because it still gives a great gloss on the engine, but it doesn't make it look greasy/oily.

You can use other types of dressings, armor-all is available everywhere...a little greasy for me but still works. If you have something else that is similar...as long as it is a rubber/vinyl protectant, you're good to go.

With HD (hyper-dressing) its great because you can basically just spray your whole engine bay with it and let it set for a few minutes. If a little gets on a painted or chromed area, just wipe it off with a microfiber. I usually allow the dressing to set for 3 or 4 minutes, give or take. While its setting, you can apply a spray wax (or whatever you're using) to the painted surfaces under the hood and through out the bay.

After letting it set, i'll go through and wipe up any excess that hasn't dried with a microfiber towel. Ill also break the light back out again to check the engine from every angle i can to make sure i have dressing on everything i can see. For the undersides of areas you can't see, like some hoses etc, use that same microfiber towel that you wiped up all the excess dressing with and go over the areas you can't see. Under hoses or under casings etc. It will make anything thats plastic or rubber look nice and black with a good shine to it.

Start up the engine and allow it to run for a couple minutes. This helps any leftover dressing to dry ...just be sure all towels/tools and bags have been REMOVED before starting it up. A plastic back cause up in your belt system wouldn't be a good thing.

In the case of our little Honda, it turned out looking fantastic.

We went from this:

Engine_Right_Before3.JPG


To this:

Engine_Right_Finished2.JPG


Be sure to get the area below the windshield wipers really good. Having the hood up makes this area much easier to dress and really creates a nice clean finished look along the windshield with the hood down.


And after buffing out the paint and bringing this thing back to life, it looked really cool from a distance with the hood up:

Hood_Up_Finished.JPG



And as for our Toyota Tacoma oil spill disaster...you can take it from this:

Engine_Center_Before1.JPG



And renew it back to this:

Engine_Center_Finished.JPG


Engine_Left_Finished1.JPG



So i hope this helps some people here get the courage to go out and give it a try. Honestly you can do it in 1 1/2 to 2 hours at a very moderate pace. This was one of my most feared tasks years back when i first got into detailing. I was so afraid to get water on something i shouldn't and that the car wouldn't start! Well so far the worst ive had happen was on my OWN car...and i accidentally unplugged a wire that hooks up to the starter while reaching WAY down into the bottom trying to clean up some grease that had accumulated over the years thanks to a blow radiator along with a few other drips/leaks. Was a quick easy thing to hook back up :dblthumb2:

If you have any questions or comments please feel free to post them.

Thanks all.
 
Very nice writeup! Thanks for taking the time to do this..
 
I too remember being the detail task I never wanted to tackle when I first got into it.

Now give me a pressure washer, couple brushes, degreaser, few trash bags, and about 20 minutes or so and I don,t mind doing them at all.


Nice write up for some of the new guys to use as a reference.
 
Thanks so much for doing this write up! I took notes and everything haha. The engine bay just looks so intimidating when you first open it up, especially to us newbies, with all the wires and hoses. I'm just scared of screwing something up and thus screwing the engine/car up. 0.o. Now that I actually understand better what detailing an engine entails I will give it a go next time I do my car….which is whenever I get it back from the body shop, hit a deer at night :(. Hopefully they don't offer to 'wash and wax' the car while its there and I get it back full of holograms and swirls. Thanks again!! :props:
 
Very nice writeup! Thanks for taking the time to do this..

Thanks and no problem. There were a couple i came across when i first tried it way back when that helped me some...but some stuff i just had to figure out. Wish i had a few more 'during' pictures to share but i tried to describe what to do since i didn't have as many photos to SHOW it.

I too remember being the detail task I never wanted to tackle when I first got into it.

Now give me a pressure washer, couple brushes, degreaser, few trash bags, and about 20 minutes or so and I don,t mind doing them at all.


Nice write up for some of the new guys to use as a reference.

lol yeah i usually take an hour or so to do the full detail on an engine. I get kinda obsessive and really try to get into areas that most people probably wouldn't see and then i like to do a final wipe down on everything i can reach just to even out the dressing so everything looks uniform and i dont have some spots being much more shiny than others. First detail though took me a little while..."wheres the alternator?" "Ok these wires run to the spark plugs...where the other end"...oh the good ole days. Though i do know a little mroe about engines now than i did then :)

Thanks so much for doing this write up! I took notes and everything haha. The engine bay just looks so intimidating when you first open it up, especially to us newbies, with all the wires and hoses. I'm just scared of screwing something up and thus screwing the engine/car up. 0.o. Now that I actually understand better what detailing an engine entails I will give it a go next time I do my car….which is whenever I get it back from the body shop, hit a deer at night :(. Hopefully they don't offer to 'wash and wax' the car while its there and I get it back full of holograms and swirls. Thanks again!! :props:

lol took notes and all huh? Thats great. I hope you do some before and after photos and post a couple up on here to show how it turned out. Sorry to hear about the deer :(.

If its at the body shop they'll almost surely be buffing out what they're fixing...i wouldn't expect too much to be in good shape when you get it back. Though one time my friend went to a body shop cause a lady ran into his PARKED van ...and we got it back and they blended the color real well and it was actually swirl free! So there is hope out there.
 
Nice write up Will!!!! This should def be a sticky! :props:
 
Great writeup. All of the electronics in today's cars makes me long for the pre electronics, pre smog equipment of the cars of my youth. All you needed was a can a Gunk and a car wash high pressure hose. Cover the alternator and distributor and you were set. If it didn't start you opened the distributor cap and wiped it out or sprayed some silicone in it and you were off. Very different today.
 
Great writeup. All of the electronics in today's cars makes me long for the pre electronics, pre smog equipment of the cars of my youth. All you needed was a can a Gunk and a car wash high pressure hose. Cover the alternator and distributor and you were set. If it didn't start you opened the distributor cap and wiped it out or sprayed some silicone in it and you were off. Very different today.

I totally agree and understand w/that. Too many damn sensors and computers...a lot to be nervous about and be careful around thats for sure lol
 
Really nice job Will. Thanks for taking the time! A lot nicer now that 75 was the high today.
 
Nice write up! I usually take longer than expected once I start detailing my engine bays, since I keep finding other parts to clean, polish, or replace! Great therapy!
 
Really nice job Will. Thanks for taking the time! A lot nicer now that 75 was the high today.

Nice work man!

:props:

Thanks guys. And yeah today was pretty nice out. Spent all day working on a 2012 black Charger :dblthumb2: Just wish the sun would have stayed out, but it got overcast so good after shots weren't possible. Sure looked sweet under the halogens though.
 
Nice write up! I usually take longer than expected once I start detailing my engine bays, since I keep finding other parts to clean, polish, or replace! Great therapy!

lol yes it can become more than bargained for if you start doing that. I have an old taurus so not much to polish...but i did spend a couple hours working on the grease on the bottom parts the other day. Man what a mess that was...top looked fine but the bottom where all the crap runs to was a mess.

Next step is to jack it up and do some steam cleaning on the under side. That'll be a nice task lol.
 
Engine details take allot of time and effort in order to do the job correctly.

The before and after shots clearly show how much time went into these details. Thank you for such a through writeup and taking the time to post it here....:props:
 
Engine details take allot of time and effort in order to do the job correctly.

The before and after shots clearly show how much time went into these details. Thank you for such a through writeup and taking the time to post it here....:props:

Yeah you surely have to get all sides of all those pieces in there. You can get the top of the bay pretty easily but if you want it to really look finished you gotta get your hands/arms down there and get a little dirty :xyxthumbs:
 
Searching the forum for a good engine detailing thread and found this again...thanks for taking the time to put this together.
 
Awesome write up! I detail the engine on my GT500 for car shows all the time. Can't be afraid to get in there, just be smart about it.
 
Great write up and pictures. I'm looking forward to Boot Camp next month so I can learn proper technique for engine cleaning. Right now I use APC, brushes and a VX 5000 steamer.
 
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