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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)

E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 12-09-2014, 10:57 PM
Omar Orozco Omar Orozco is offline
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Cleaning the engine compartment

So Im in need to clean my engine compartment/engine bay but I really don't even know where to start. What do I need? And how?? Pleasee help
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  #2  
Old 12-09-2014, 11:42 PM
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astroboy424 astroboy424 is offline
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A power washer. Want a show case bay? Take everything out even motor.. if not just cover the wires
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  #3  
Old 12-10-2014, 12:06 AM
Omar Orozco Omar Orozco is offline
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Thank you!
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  #4  
Old 12-10-2014, 04:48 AM
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get a engine degreaser and spray down whole engine, focusing on the oily spots more. let sit per instructions. then either a pressure sprayer or a good nozzle that allows a strong spray off a garden hose. try to keep the strong spray away from the dizzy cap and main harness connections. once done washing, leave hood open, and let air dry. make sure you do it on a warm day too
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Old 12-10-2014, 11:27 AM
tristero tristero is offline
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Probably at minimum, you could remove the intake plumbing and airbox. On the six cylinder engines, this will expose the driver's side fender well, which often collects leaking power-steering fluid. On my car - it's a very dirty location, and tough to access, and a good candidate for some cleaning effort.

In my recent oil pan gasket change, I cleaned with both Gunk degreaser, and Simple Green, and I have to say I was more impressed with how well simple Simple Green worked. I don't think it's any cheaper though. Sure smells better.
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  #6  
Old 12-10-2014, 12:32 PM
markseven markseven is offline
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Quote:
Originally Posted by astroboy424 View Post
A power washer.
I would not recommend this method for the OP.

I use Simple Green Automotive Degreaser. It's a safer for the environment.

I also use a leaf blower to dry the engine as best as I can, and then start the car and drive it around so that any remaining water is dried or blown off asap.

**Do not spray water on a hot engine.** You can crack a block or exhaust manifold.
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  #7  
Old 12-11-2014, 06:22 AM
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Never thought of a leaf blower - great idea! +1 on warm day suggestion. Most degreasers/cleaners seem to work about the same. Just depends on what you can buy locally.
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I've just changed my wiper blades and now my reverse lights don't work. Should I change my fuel pump relay?
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Old 12-11-2014, 03:50 PM
markseven markseven is offline
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Originally Posted by BMWFatherFigure View Post
Never thought of a leaf blower - great idea! +1 on warm day suggestion. Most degreasers/cleaners seem to work about the same. Just depends on what you can buy locally.
Thanks! I also use it on the car after a wash - it makes quick work of drying.
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Old 12-11-2014, 07:53 PM
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I rest my case. Idk what a leaf blower is going to do, blow leaves? you can spray over most of the components, except the electric components. As in, spark plugs, cap and rotor, alternator, etc.

Go to a car wash that provides the washer, wash your car first because thermostats aren't electric. It doesn't automatically just stop cooling down the car when it shuts off, it continues to work until the car is fully cool. So, 15 mins passes by, engine cool, degease it, pressure wash (power wash. Same ****) it, and your good to go then use the leaf blow to DRY off the engine (or just drive it because the engine gets hot)
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  #10  
Old 12-11-2014, 08:09 PM
Omar Orozco Omar Orozco is offline
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Great video! Thanks
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  #11  
Old 01-03-2015, 06:21 PM
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BigBoy740il BigBoy740il is online now
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Never do this (pressure washer) on an M20. The connections are not water tight and you will cause major electrical problems. If you do... do not start the engine until you have dried out all of the connections. Also use dielectric grease on all connectors to keep the connections dry in the future.
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Old 01-04-2015, 06:54 AM
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+1 BB740iL. I use silicon grease on the rubber (sealing) parts of plugs to keep water out. Need to work with dielectric grease too, it seems. Silicon grease also good on plug leads. Helps with insulation and waterproofing plus helps retard ageing.
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I've just changed my wiper blades and now my reverse lights don't work. Should I change my fuel pump relay?
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Old 01-04-2015, 08:47 AM
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Quote:
Originally Posted by Omar Orozco View Post
So Im in need to clean my engine compartment/engine bay but I really don't even know where to start. What do I need? And how?? Pleasee help


Engine degreaser is okay on engines, but I prefer to use gentler products, especially with older rubber parts in there. Purple Power and Simple Green are both good. Cover ALL your electrical components, distributor, fuse box and so on, with aluminum foil. Aluminum foil will crimp easily and stay in place where plastic blows off. Remove the battery and clean under where the battery sits and make sure all the white fuzzy stuff (corrosion) is gone.

Do NOT use a power washer. Use a garden hose. If the crud won't come off, reapply the cleaner and scrub it a bit. Power washers force water into places you don't want it. Save your old toothbrushes and use these to scrub in tight spots. Keep some Dawn dishwashing detergent around and use it on the concrete when you're done.

When you put everything back together, before you reinstall the battery, spread some baking soda on the battery box so it will neutralize any acid that may drip later.
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  #14  
Old 01-04-2015, 08:56 AM
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BMWFatherFigure BMWFatherFigure is offline
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Baking soda in the battery tray. What a great idea!!
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Good - Fast - Cheap: Pick any two.
Current:
E23 735i; E32 735iL; E34 535i; 2 X E38 735iL (Oxford Green and Alpine White); R50 Cooper; R55 Cooper Clubman. E38 Parts Car
Previous:
E21 318i; E30 318i; E32 735iL; E34 535i; E38 730iL; E53 4.4i
I've just changed my wiper blades and now my reverse lights don't work. Should I change my fuel pump relay?
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  #15  
Old 01-04-2015, 09:05 AM
ol' grouch ol' grouch is online now
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Quote:
Originally Posted by BMWFatherFigure View Post
Baking soda in the battery tray. What a great idea!!


I'm right on the southern edge of the rust belt. 50 miles south, cars don't rust much. 50 miles north, they sort of dissolve. I've got other tips but you don't want to use them in Oz. MOT might get a bit stuffy if you save your old motor oil and spray the undercarriage with it to prevent rust. Then again, I doubt it gets too cold in your neck of the woods. What's it get down to in winter, 5 degrees C?

BTW, do you ever go to car events locally? I've got a friend in Fremantle.
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  #16  
Old 01-04-2015, 12:09 PM
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BMWFatherFigure BMWFatherFigure is offline
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On a really cold winter night. Summer here now. Forcast for Jan 5 is 40*C day with 23* night. Had all the frost and rust I could handle in the UK.
I work shifts so no as many events as I would like. I am a member of the 'Veteran and Vintage CC' and the 'Daimler and Lanchester Club' locally. PM me if your friend wants to meet.
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Good - Fast - Cheap: Pick any two.
Current:
E23 735i; E32 735iL; E34 535i; 2 X E38 735iL (Oxford Green and Alpine White); R50 Cooper; R55 Cooper Clubman. E38 Parts Car
Previous:
E21 318i; E30 318i; E32 735iL; E34 535i; E38 730iL; E53 4.4i
I've just changed my wiper blades and now my reverse lights don't work. Should I change my fuel pump relay?
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