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03-11-2012, 08:59 PM | #1 |
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Sandblasting the engine?
As the engine in the A chassis I am working on has many coats of paint on it...some of them red...I am considering sandblasting it clean. I would like to know if anyone has done this and what precautions they took. This is running, in the chassis. I know to seal the disy, generator and starter and tranny louvers on the cover. Anything else? or is this a bad idea?
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03-11-2012, 09:04 PM | #2 |
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Re: Sandblasting the engine?
I wouldn't even think of sandblasting it, that sand will get in no matter how good you
think you got it sealed. Bob |
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03-11-2012, 09:09 PM | #3 |
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Re: Sandblasting the engine?
Do not sandblast. You will have a wreck if you do !!
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03-11-2012, 09:21 PM | #4 |
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Re: Sandblasting the engine?
Yeah, it seemed a little "loopy" to me too...and it was my idea !
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03-11-2012, 09:24 PM | #5 |
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Re: Sandblasting the engine?
Rule #1 of sand blasting. Sand will go everywhere no matter how sealed you think it is.
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03-11-2012, 09:24 PM | #6 |
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Re: Sandblasting the engine?
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Red |
03-11-2012, 09:38 PM | #7 | |
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Re: Sandblasting the engine?
Quote:
Why should it seem "LOOPY," (good word, I'll have to remember that one!) when some of the guys think an A Model will "RUN ON DIRT!" Isn't that something to do with the word, (HYPOCRITICAL) Well, Sigh! Since I can't stir up nuttin' today, I,ll finish making my bannana puddin' & go to bed. (The dog has the bed already warmed up, GOOD DOG!) Bill W.
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"THE ASSISTANT GURU OF STUFF" Last edited by BILL WILLIAMSON; 03-12-2012 at 03:13 AM. Reason: typo |
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03-12-2012, 07:33 AM | #8 |
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Re: Sandblasting the engine?
I have had good results using several wire wheels on an electric drill to clean an assembled engine block/head to shiney bare metal. Plan on 3 to 6 hours depending on how much paint and rust is present. You can not keep all of the sand out of an assembled engine while blasting.
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03-12-2012, 08:13 AM | #9 |
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Re: Sandblasting the engine?
How about a different medium other than "sand"?? Walnut shells ?? I'm sure there are others. Or use a liquid/gel type remover.
Paul in CT |
03-12-2012, 09:16 AM | #10 |
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Re: Sandblasting the engine?
I have seen Walnut shells used with apparent success. Advertising claims are that Walnut shells are "consumable" without damage. I would still tape up the openings very well. Gar Williams
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03-12-2012, 11:14 AM | #11 |
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Re: Sandblasting the engine?
Look for dry ice blasting. No residue except the dirt being removed.
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03-12-2012, 11:24 AM | #12 |
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Re: Sandblasting the engine?
I have used a gel type chemical stripper, a garden hose and a light duty (fine wire) brush on a drill motor.. It works very well.. Pull all the accessories off, put in a set of old spark plugs and locate a rubber cork for the removed distributor.. be sure to run water through the coolant system as well in case some of the stripper gets into the waterneck if you have the radiator and hoses off..
Paint on the stripper nice and thich and wait.. give it 20-30 minutes and then hose off with a strong stream of water or pressure washer.. The wire brush needs to be used only after it is rinsed for stuck on areas, as if you brush before rinsing. you will spray very fine and powerful paint remover *everywhere* I went through 2 cycles of this and then adter it was finally brushed and rinsed off, dried it with a air hose, rubbed it down with paint thinner and painted it up.. Still looks new after 3 + years.. |
03-12-2012, 12:11 PM | #13 |
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Re: Sandblasting the engine?
Good advice, all, and Thanks, Dave, nothing speaks as convincingly as the voice of experience. I've heard it on good authority that "real men use oven cleaner !"
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03-12-2012, 12:20 PM | #14 |
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Re: Sandblasting the engine?
I would not do any type of Blasting near my engine. Here is a link to a CH-47 Chinook Helicopter that went down due to Walnut Shell Blasting:
"Failure of the Input Pinion Capsule was caused by Walnut Grit blocking the oil journals inside the transmission. Walnut Grit was used to clean the transmission during the overhaul process." http://www.chinook-helicopter.com/hi.../74-22292.html Darryl in Fairbanks |
03-12-2012, 04:05 PM | #15 |
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Re: Sandblasting the engine?
If you can obtain "aircraft stripper", it's twice as effective as the cheap home store
brands. Dedicated paint stores usually have the aircraft stuff.
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03-12-2012, 09:23 PM | #16 |
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Re: Sandblasting the engine?
Playing the "wise guy" here - all those coats of paint could be 'sealing up' a lot of leaks
Be careful of the stripper around the gaskets and seals, unless you are planning to regasket anyway |
03-12-2012, 10:10 PM | #17 |
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Re: Sandblasting the engine?
31, That is likely one of the 'wisest' replies I have heard.. True, the chem stripper could get into some of the gaskets.. Great advice
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03-12-2012, 11:10 PM | #18 |
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Re: Sandblasting the engine?
Walnut sheels might be alright, but how are you going to get rid of all those darn Squirrels!
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03-13-2012, 05:49 AM | #19 |
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Re: Sandblasting the engine?
How about Soda blasting it should work? As always seal the engine. I think I will try this on my 53 mercury engine. What is your opinion ?
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03-15-2012, 08:05 PM | #20 |
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Re: Sandblasting the engine?
Dry ice blasting might also work.
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03-15-2012, 09:23 PM | #21 |
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Re: Sandblasting the engine?
I went the sandblast route on a 67 mgb gt that i restored years ago when i was young and a little wet behind the ears. The result was that somehow it made it into the oil canister for the filter and i wiped out every bearing in the newly rebuilt motor. DON'T DO IT. As you say, oven cleaner works very well. Good luck.
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03-15-2012, 09:44 PM | #22 |
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Re: Sandblasting the engine?
hey i know, leave the hood down. the paint dissapears instantly. lol
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03-15-2012, 09:49 PM | #23 |
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Re: Sandblasting the engine?
Back (1980's) when I was prepping the old engine for rebuild, after dissassebling the engine I took the block and head to a Redi Strip shop in Columbus Ohio to be cleaned. They completely cleaned (electrolytically) and derusted everything inside and out for about $80 give or take in the early 80's - probably much more now if they're still in bussiness.
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04-28-2012, 06:25 AM | #24 |
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Re: Sandblasting the engine?
Any up dates on your task? Pictures? If you have not started It I can tell you first hand that the aircraft stripper that I am sure you can get at your Napa auto store works very very well..... But If I was going to do it over again I would have taken the motor out of the car......
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04-28-2012, 08:38 AM | #25 |
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Re: Sandblasting the engine?
I've used oven cleaner with a great deal of success. We had to sand blast the interior of our home to get rid of dark walnut stain on the wood. That was 19 years ago and we still get sand coming out of the T&G ceilings!
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04-28-2012, 10:42 AM | #26 |
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Re: Sandblasting the engine?
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04-28-2012, 11:28 AM | #27 |
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Re: Sandblasting the engine?
DarrylKMC
You have burst my bubble !!!! I thought I finally found a use for those 4 Walnut trees in the yard!!! I guess I'll just have to keep getting fat from eating the nuts!! No all jokes aside thanks for the warning !!! Paint stripper allways worked for me wire brush, sponge and a bucket of water John Cochran |
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