109 sel engine bay - Mercedes-Benz Forum

 
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post #1 of 8 (permalink) Old 05-16-2016, 02:19 AM Thread Starter
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109 sel engine bay

Hi,

My new purchase got a great cut and polish last week, and now is looking the goods. Next is now a clean on the inside.

But first what is the best way to clean engine bay and get rid of oil leaks?
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post #2 of 8 (permalink) Old 05-16-2016, 06:24 AM
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Simple Green works great for cleaning.

Clean everything, the locate your leaks by keeping an eye on things.
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post #3 of 8 (permalink) Old 05-16-2016, 10:55 AM
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I would agree with Rumb, however gunk is always a good choice as well if the grease is thick. Also you can use heavy duty non-flammable degreaser, I use that with a parts cleaner brush and get great results.
Good luck and keep us updated!

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post #4 of 8 (permalink) Old 05-16-2016, 05:54 PM Thread Starter
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Thanks, high pressure cleaning ok?

Im concerned about electrical and injectors
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post #5 of 8 (permalink) Old 05-16-2016, 07:31 PM
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Quote:
Originally Posted by 300 SEL View Post
Thanks, high pressure cleaning ok?



Im concerned about electrical and injectors

It always helps if you fill out your profile so we understand what model car you have. You could have sensitive d-Jetronic electrical wiring harness on a 3.5 or 4.5, or the early mechanical injection on an m130 or 6.3.

So please fill out your profile to help us help you.

Location is always helpful too.

.

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Click for list of my 32 MB since 2010. If, you want 70's-80's Mercedes tuner wheels, let me know.
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post #6 of 8 (permalink) Old 05-16-2016, 09:53 PM Thread Starter
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Thanks Fonzi,

Purchased in Australia.

Its a 1972, 3.5 with D jetronic wiring system.
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post #7 of 8 (permalink) Old 05-18-2016, 08:30 AM
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Wiring will be brittle and cracked if the harness hadn't been replaced in the past. Thus, pressure washing might be a bad idea. However, if you keep the flow down low and away from the intake and injectors, you'll be ok.

I second the notion of Simple Green. Spray it liberally throughout the engine bay and let it sit a while. A garden hose and nozzle will take most of the gunk away.
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post #8 of 8 (permalink) Old 05-27-2016, 04:42 PM Thread Starter
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Would you believe i used oven cleaner and it work the best. Sprayed on warm engine then light spray with the hose and boom.
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