Engine Clean ? - benno2
I would like to clean my engine and engine bay. I have seen people steam cleaning them, has anyone any tips for this, any suggestions would be most welcome,
cheers in advance
P.S car is a '93' Audi 80 2.0.
Engine Clean ? - benno2
thanks for the tips, I think I will give the Autoglym a go.
Engine Clean ? - nick
Jizer or Gunk will do the same job if used in the same way. I would guess for less money too.
Engine Clean ? - NormanB

I have used Gunk - it is very effective but it stinks - yuk and the fumes permeate into the cabin. Never tried Jizer.
AutoGlym is pricey but it is very effective (as good as Gunk) but it smells niiiiiiiiiiiiiice!

Engine Clean ? - nick
Norman, I must be weird. I like the smell of Gunk! No wonder my missus pulls faces at some of the perfume I buy her.
Engine Clean ? - smokie
Hmmm...a spot of diesel behind the ears does it for you eh?
Engine Clean ? - Dizzy {P}
For years I've kept my engine bays clean by brushing with Gunk or Jizer (nearly said Tizer!), or sometimes with white spirit, and then washing down with hot water and detergent or pressure washing with cold water.

I've only experienced one small problem, when I got water trapped in the spark plug wells in a Citroen ZX and misfiring followed.

I like to see a smart engine bay and it has also helped me in years past in spotting any fluid leaks as soon as they start. If the worst should happen, it's also nice to be able to work on a breakdown without getting dirty!

I even have a silver cup for 'Best Engine Bay' from when I was persuaded to enter my Vauxhall Royale Coupe in the concours event of an owners club national rally that I called in on purely as a spectator some years back! Got '2nd in Class' for the complete car as well! Sad, isn't it?

Good idea to let the engine bay get a thin coat of dirt before selling the car though.
Engine Clean ? - Dave_TD
Our borough council licensing authority specify that the engine of any vehicle presented for taxi plating or annual re-test must be steam-cleaned before inspection!
I find a coin-operated "buy-time" jetwash to be adequate, use the engine cleaner first then the high pressure rinse. Of course it helps to dry things out if you drive the car all day afterwards, like I do...
Engine Clean ? - M.M
I have to say I'm with Dizzy here. I hate to see filthy engine compartments. Particularly annoys me to get a car that has been main dealer serviced from new for some years and find they never even bothered to wipe round the various filler tops to help prevent dirt ingress. Often the dirt build-up on the brake fluid reservoir is such you can't see the level....smacks of a lack of care/respect for the vehicle.

With our own cars I clean the engine compartments on arrival and then about every 18 months.

Engine cool or cold, parked over the grubby area of the gravel yard. Spray on de-greaser and leave for ten minutes, give a second coat and agitate heavy soil areas with a 1" paintbrush. Cold water pressure wash off. Then use a strongish detergent solution and spray over the painted areas.. inner wings, under the bonnet etc. Cold water pressure wash again. Run engine to evaporate off the excess water and use an air-line and towel to mop up any pools of trapped water. Take car for a short brisk run to "blow dry" it. If there are any paint chips of small rust areas to treat, say on the inner wing, do them now and dry off with a hair dryer. Then coat the engine, electrics, inner wings etc with a type of maintenance spray that is slightly heavier than WD40 and leaves a very light oily film, I'll use a whole large can. This last step is quite important in my view to stop everything corroding.

Mostly I'm doing diesels and if there are any exposed electrical units I clean them first with maintenance spray (a good solvent) and a paint brush then put a decent plastic bag round them while pressure washing the rest.

Engine Clean ? - Dizzy {P}
MM, I'm glad you agree. After hitting the 'post' button, I expected to get loads of responses calling me all sorts of swear-filterable names!

I'm pleased you clean your customers' car engines. You already know that in July a relative of mine had a major engine repair, a full strip and rebuild, carried out by a respected local garage. I was very disappointed to find that the engine was as thick with dirt when the car was returned as when it went in. I immediately cleaned it and a check yesterday showed that there are no leaks of any kind, something that couldn't have been determined with an engine covered in oily dirt. The engine is running perfectly but my recommendations for this garage will be less eager from now on.

Engine Clean ? - Ian (Cape Town)
The spray bottle of cleaner then a light hose off system works best, i find.
Another useful tool is an old lavatory brush, especially for getting into the nooks and crannies.
While you're about it, blast the hose back through the radiator, to remove dead bugs, leaves etc. Also, use a hacksaw blade to starighten the fins.
I also find that covering the important electronic bits and the brake fluid reservoir with "rubber products" is a useful ploy.
(Something for the weekend, sir?)
Also, an old hankerchief inserted into a plug-spanner is an ideal way to dry out those areas around the plugs, which always seem to collect water...
Engine Clean ? - Richard Turpin
Gunk followed by jetwash as Dave says. Easy and works.
Engine Clean ? - DGW
VW/Audi have issued a technical bulletin warning of damage to Mass Air Flow (MAF) sensors and Oxygen sensors due to the use of sealants, liquid gaskets or lubricants containing silicon. Many detailing products contain silicon. If a vehicle engine is running when spraying products which contain silicon (tyre dressing, exterior and interior trim cleaner/protectants), silicon may be drawn into the intake system and can contaminate the MAF sensor and/or Oxygen sensors.

This advice applies equally to many of the latest cars being produced, regardless of manufacturer. Mass air flow sensors are expensive to replace (circa £200+ for a VW/Audi/Skoda/Seat) and engines fitted with them do not run properly when they are contaminated.

The bottom line here is to be careful about what you use to clean under the bonnet of your car.
Engine Clean ? - wowjack
If you really want your engine to shine like never before, and have a bit of time on your hands then you should do this.

Take out the engine part you want to polish; this includes all metal covers etc.
Used a metal wire polishing tip you can get for your drill, and take the dirty metal off until you have a good finish.
Then you need to protect it from rusting, do this by spraying heat resistance clear lacer on your new polished surface.

To clean hoses detached them and clean with a strong cleaner, then spray with back to black.

It also gives you a opportunity when refitting to clean the rest of the engine bay you can not get to otherwise. Also you can take the chance to spray WD40 for more protection.

After this just maintain every few months by wiping over you new clean engine with a damp rag.

Do all this and your car will seem like a show car!!!!

Value my car