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| Help with Engine Clean for Repaint Please? https://www.ausmini.com/forums/viewtopic.php?f=2&t=78206 |
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| Author: | XC9000 [ Mon Aug 27, 2012 4:45 pm ] |
| Post subject: | Help with Engine Clean for Repaint Please? |
Maverick's "How to..." Paint/Cleaning Engine Bay is remotely relevant. His advice is on an in-situ engine. Mine is out of the car and quite dirty. Yesterday I used Supercrap's spray degreaser then hosed it oof (plastic bags to electrics) but there is still heaps of gunk on it. Research on other sites provides varied answers like i wouldnt have believed. A bloke some years ago obtained an enviro-nasty product he applied and hosed off seriously cleaning the power unit. That's what I am after. If I use paint stripper (caustic soda) will it harm any of the gaskets etc? Are there products that will find their way into those crevices? Then I want advice on what colour engine enamel do I use on a 1976 Mini S please? I think its black but black is a bit boring so please...your comments. |
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| Author: | drmini in aust [ Mon Aug 27, 2012 4:52 pm ] |
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I would paint kero or diesel on the gunky bits, leave overnight, then wire brush & scrape off, then SuperC's spray degreaser + hose off again. Repeat the degreaser bit until it looks clean (seriously, it is good stuff, better than the rest IMO). Then, go over it with some grease & wax remover, wipe dry immediately, then paint. I paint mine with a brush, I find it gives better adhesion than spray and you can work the paint into the nooks and crannies. 
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| Author: | mini_mad_matt [ Mon Aug 27, 2012 5:10 pm ] |
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The spray degreaser works well, but will require some scrubbing. Generally on dirty/oily engines, you need to spray it and let it penetrate and loosen up the dirt. Give it a brush and another spray then hose off. Repeat until it's looking nice and clean. Shouldn't take too long. High pressure spray guns also work a treat but obviously requires more care when blasting an assembled engine. |
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| Author: | Irish Yobbo [ Mon Aug 27, 2012 5:15 pm ] |
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My engine had about half an inch of dirt mixed with oil plastered to the back of it. I scraped as much off as I could with a stick, then used degreaser with a scrubbing brush, then degreaser with a rag, followed by wax and grease remover. It seemed to clean everything off well, I left it overnight to dry and there was plenty of surface rust by the morning. |
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| Author: | adamstuart [ Mon Aug 27, 2012 5:59 pm ] |
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Irish Yobbo wrote: I scraped as much off as I could with a stick
Any tips for us DIYers who dont have access to trade quality tools? |
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| Author: | michaelb [ Mon Aug 27, 2012 6:06 pm ] |
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Degreaser and a tooth brush Hose off . More degreaser and tooth brush. Keep doing until clean. Then wax and grease and wipe off. Yes it takes time 
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| Author: | Rob M [ Mon Aug 27, 2012 6:08 pm ] |
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a butter knife makes a nice flat blade screwdriver! |
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| Author: | adamstuart [ Mon Aug 27, 2012 6:30 pm ] |
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Rob M wrote: a butter knife makes a nice flat blade screwdriver! 
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| Author: | Nicho [ Mon Aug 27, 2012 6:51 pm ] |
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Pull all the bits off and disassemble it and put it in a parts washer for a couple of days. Work the guts out of it on reassembly and you'll have a clean weapon of mass destruction to paint and be proud of. |
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| Author: | CPOCSM [ Mon Aug 27, 2012 6:59 pm ] |
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I did the above post but broke the motor in two, took the block and box to the local car lovers and hosed the crap out of it. The bits came up better than new but the con was I had to go late at night so as not to attract attention(it was downtown Queanbeyan so no-one is out after martial law is in force )
Probably a bit naughty doing it but really didnt care at the time... |
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| Author: | TBOT70 [ Mon Aug 27, 2012 7:09 pm ] |
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ive heard pure coca cola syrup works wonders
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| Author: | Nicho [ Mon Aug 27, 2012 7:25 pm ] |
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I've got a block soaking in my parts washer right now.. Along with a few other bits and given another day they should be ready to meet mr Karcher. Should be spiffy and clean by then |
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| Author: | sam_1100 [ Mon Aug 27, 2012 7:38 pm ] |
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Get a wire brush attachment for a grinder and go nuts, worked for me! |
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| Author: | kirby [ Mon Aug 27, 2012 8:01 pm ] |
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Chemtech ct14 mixed with kero then pressure wash off. Yet to find anything it can't remove. Including paint so be careful. |
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| Author: | Monaco [ Mon Aug 27, 2012 9:32 pm ] |
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Try using the POR15 product called Marine Kleen, it is a high quality degreaser designed for paint prep. However, please use good gloves and eye protection as it will devolve the fat in your skin and give you terrible burns! 
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