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Old Apr 25, 2007 | 05:27 PM
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Default Engine Cleaning Tips

I went out and bought a truck load of simple green, have many towels, and engine dressing supplies. Now I want to know if there is any way to speed up this process. By hand, it will take several hours, but surely someone found a way to do this without getting the engine bay wet (gotta love the opti).
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Old Apr 25, 2007 | 10:53 PM
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by hand is the best, consider the age of the parts your working with... yea alot of time results in great effect:


but one thing i did get that really helped was one of the portable hi pressure steam cleans like at walmart, about $50, and it did help clean the grease...
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Old Apr 25, 2007 | 11:38 PM
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But if you do a search there are lots of great posts on this subject .
Just kidding with Vinnies87 , It's a canned response lately that made me laugh. I've been lurking for a year or so and I see these type of posts weekly.

Seriously, by hand is the best way. It's a slow process, but it's worth it. My LT1 looks new. However, I wish it looked as beautiful as Vinnies87 motor does .
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Old Apr 26, 2007 | 09:03 PM
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I'm doing mine this Saturday. I'm going to the car wash. I'll spray it off and then dry it as quickly as I can. Then drive it home to really dry it off. Then I'll work on what's left by hand.
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Old Apr 26, 2007 | 09:24 PM
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Originally Posted by PBnf
I'm doing mine this Saturday. I'm going to the car wash. I'll spray it off and then dry it as quickly as I can. Then drive it home to really dry it off. Then I'll work on what's left by hand.
I don't know from experience, but I don't think I would be doing any spraying at the carwash of the engine bay from what I've read on the forum .
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Old Apr 27, 2007 | 12:06 AM
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Don't know what year your car is but if you have a LT motor I would stay away from any water under the hood esp. a pressure washer the opti-spark is very sensitive to water and a very expensive repair....
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Old Apr 27, 2007 | 09:28 AM
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I just want to say I hate simple green. On a Camaro I used it to clean around the engine area and it ruined some of the painted areas in the engine compartment. The flat black finish on the fender areas become soft and mushy after the application of simple green and you could pretty much scrape the paint off with your fingernails. Pretty much when you wiped it off with a paper towel the paper towel would stick in the paint.

It was weird. Ever since that incident I am afraid to use simple green on anything due to fear it will wreck stuff.
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Old Apr 27, 2007 | 09:55 AM
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I'm curious, since I have been reading the forum, I have heard all these horror stories re: water and the Opti. Hasn't anyone tried to just put a line of silicone caulk around the seal to see if this protects against water getting in???
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Old Apr 27, 2007 | 09:58 AM
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Originally Posted by clean94
I'm curious, since I have been reading the forum, I have heard all these horror stories re: water and the Opti. Hasn't anyone tried to just put a line of silicone caulk around the seal to see if this protects against water getting in???
That might help to shore one up against moisture and corrosion damage. But what about the heat from the high engine temps?

Another problem is, the Opti is very hard to get at without removing the water pump and it only takes about a thimbleful of strategically-placed coolant in an early, unvented Opti to take one out.

Last edited by onedef92; Apr 27, 2007 at 10:14 AM.
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Old Apr 27, 2007 | 10:06 AM
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That's scary. You would think GM engineering would have done a little better job than that. However, my 94's Opti is original and no problems yet. (Thank you Lord)
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Old Apr 27, 2007 | 10:09 AM
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Originally Posted by clean94
I'm curious, since I have been reading the forum, I have heard all these horror stories re: water and the Opti. Hasn't anyone tried to just put a line of silicone caulk around the seal to see if this protects against water getting in???
I have not needed to do anything to mine yet, but do to the location of the Opti I don't think you could get close enough to it to do a good application of silicon without removing it. Plus the heat and composition of materials may not allow it to stick very well. You are probably better off keeping it dry.
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Old Apr 27, 2007 | 10:11 AM
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Originally Posted by Eyeguy77
I don't know from experience, but I don't think I would be doing any spraying at the carwash of the engine bay from what I've read on the forum .
I have a 1990 (L-98) and thus a normal distributor. I've seen various threads regarding spraying water under the hood. I can tell you that I've done it numerous times without any harmful effects. All you have to do is clean where the dirt is, usually not near the distributor, and dry the car as soon as possible afterwards. The engine bay is not totally sealed from the outside environment, and if you drive in the rain water will get in there. But in the end, everyone has to make their own decisions.
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Old Apr 27, 2007 | 10:29 AM
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A use a light water spray on my LT1 just to get things damp, then apply Simple Green , rinse with more soft mist and finish with a rag...no problems whatsoever.
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Old Apr 27, 2007 | 10:33 AM
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Originally Posted by -=Iron Mike=-
A use a light water spray on my LT1 just to get things damp, then apply Simple Green , rinse with more soft mist and finish with a rag...no problems whatsoever.
What year LT1? The 1995-96 models have factory vented Optis which are more resistant to water and corrosion damage. The early, unvented 1992-93 Optis are far more failure prone.

When the 1992s were first produced, Opti failures ranked among the first technical service bulletins released.
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Old Apr 27, 2007 | 10:37 AM
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OD....a '95.

The Opti seems to be the only thing holding together these days.
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Old Apr 27, 2007 | 10:46 AM
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Originally Posted by -=Iron Mike=-
OD....a '95.

The Opti seems to be the only thing holding together these days.
I've got 110,000 on my 1992 and I've got the early, unvented type. The Opti and water pump were replaced at 60,000 miles shortly before I bought the car nearly seven years ago.

Mine still sparks like new money, too. But I've never hosed my engine down and won't. Just Simple Green and shop towels.
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Old Apr 27, 2007 | 10:54 AM
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Originally Posted by TOMS93
But if you do a search there are lots of great posts on this subject .
Just kidding with Vinnies87 , It's a canned response lately that made me laugh.
Not to hijack the thread, but I don't quite get the people complaining you should do a search. They have more important things to post? They want to keep posting to a minimum so there are no new posts? What's the difference between the 100th thread on how to remove the battery, versus a new thread on 07 Z07 versus Ford Focus?
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Old Apr 27, 2007 | 12:31 PM
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maybe i'm the only lucky one here (should play the loto i guess) but i've soaked the engine twice now to clean it using a variety of cleaners and (gasp) a hose (eek) have had no issues with the opti or other. guess i shouldn't push my luck but now that it sparkles i should be able to just do touch up stuff.
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Old Apr 27, 2007 | 01:00 PM
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Originally Posted by montivette
I just want to say I hate simple green. On a Camaro I used it to clean around the engine area and it ruined some of the painted areas in the engine compartment. The flat black finish on the fender areas become soft and mushy after the application of simple green and you could pretty much scrape the paint off with your fingernails. Pretty much when you wiped it off with a paper towel the paper towel would stick in the paint.

It was weird. Ever since that incident I am afraid to use simple green on anything due to fear it will wreck stuff.
Its meant to be mixed with water in most cases where paint and plating is a issue.
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Old Apr 27, 2007 | 03:10 PM
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Originally Posted by DaleD
Not to hijack the thread, but I don't quite get the people complaining you should do a search. They have more important things to post? They want to keep posting to a minimum so there are no new posts? What's the difference between the 100th thread on how to remove the battery, versus a new thread on 07 Z07 versus Ford Focus?

Dale, the info to search is not a complaint, it information, you search and you get the combined info of all information related to your question from a wide selection of views. The difference is, why post a question about something when its already been answered. The function is available and works, so why not use it, only reason not to is "lazy"....
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