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Chickensoup Samba Member
Joined: January 06, 2018 Posts: 5368 Location: Good Hope, GA
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Posted: Wed Jan 30, 2019 5:46 am Post subject: vw case/block cleaning? |
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Ok, i have now collected pretty much all of the part needed to start rebuilding my 1600 once an for all(expect bearings). the as41 case i own appears to not have any cracks as far as i can see. however, the case is VERY dirty. what is the best way to clean the case properly? Or should i just pay the fee to have it hot tanked? thanks
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Chickensoup Samba Member
Joined: January 06, 2018 Posts: 5368 Location: Good Hope, GA
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Posted: Wed Jan 30, 2019 5:46 am Post subject: Re: vw case/block cleaning? |
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also, the case looks worse on the inside |
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esde Samba Member
Joined: October 20, 2007 Posts: 5927 Location: central rust belt
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Posted: Wed Jan 30, 2019 6:49 am Post subject: Re: vw case/block cleaning? |
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Rain suit and a power washer is a decent first step. After that you can really look it over and decide if it's worth the next level of cleaning.
There's about a thousand threads on samba discussing what works best, search for more than you want to know.. _________________ modok wrote:
Bent cranks are silent but gather no moss. I mean, ah, something like that. |
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Chickensoup Samba Member
Joined: January 06, 2018 Posts: 5368 Location: Good Hope, GA
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Posted: Wed Jan 30, 2019 10:41 am Post subject: Re: vw case/block cleaning? |
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ok, i have a 212cc harbor freight pressure washer. is there even the slightest chance that my pressure washer can harm my case? thank you |
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jeffrey8164 Samba Member
Joined: January 06, 2018 Posts: 3804 Location: Georgia
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Posted: Wed Jan 30, 2019 11:09 am Post subject: Re: vw case/block cleaning? |
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As long as you don’t blow it across the driveway you should be fine.
I usually spray and soak with Gunk Engine Cleaner, pressure rinse and follow up with carb cleaner or brake clean in the nooks and crannies. I’ve heard of people putting them in the dishwasher for a final clean as well. _________________ Volkswagen!
Turning owners into mechanics since 1938.
“Let he that is without oil throw the first rod”
(Compression 8.7:1) |
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stevemariott Samba Member
Joined: November 09, 2003 Posts: 1049 Location: Portland, OR
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Posted: Wed Jan 30, 2019 11:13 am Post subject: Re: vw case/block cleaning? |
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Just use common sense. I pressure wash my cases, but degrease and scrub them down first.
Chickensoup wrote: |
ok, i have a 212cc harbor freight pressure washer. is there even the slightest chance that my pressure washer can harm my case? thank you |
_________________ 1963 Manx copy
1968 Bus |
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modok Samba Member
Joined: October 30, 2009 Posts: 26743 Location: Colorado Springs
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Posted: Wed Jan 30, 2019 5:50 pm Post subject: Re: vw case/block cleaning? |
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Clean with solvent (or penetrating oil) to remove as much gunk and oil as possible first. Water/detergent solution and/or powerwashing to finish the job but only briefly, and get it dried off again quickly and apply a misting of wd40 or similar to prevent oxidation as soon as it's dry.
Magnesium hates water. You can soak it in solvent or penetrating oil FOREVER, and it will do no harm, but even a mildy caustic detergent can make it turn ugly QUICK. |
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Dangermouse Samba Member
Joined: November 23, 2005 Posts: 1266 Location: Beautiful New Zealand
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Posted: Wed Jan 30, 2019 6:03 pm Post subject: Re: vw case/block cleaning? |
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Soda Blast
_________________ Do not follow me, for I may not lead. Do not lead me, for I may not follow. Do not walk beside me either; actually just bugger off and stand over there will you. |
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Brian_e Samba Member
Joined: July 28, 2009 Posts: 3228 Location: Rapid City, SD
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Posted: Wed Jan 30, 2019 6:12 pm Post subject: Re: vw case/block cleaning? |
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I agree with the soda blasting. Take all your tin, and heads when you go. Get it all done at once. I even have had scuzzy old Kadrons soda blasted. Its harmless and works amazing. I don't even bother scraping anything off first. Disassemble into boxes, and straight to the blaster.
Brian |
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rugblaster Samba Member
Joined: March 31, 2016 Posts: 1163 Location: San Angelo, Texas
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Posted: Wed Jan 30, 2019 7:45 pm Post subject: Re: vw case/block cleaning? |
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When I first started we used a Safety Kleen parts washer (and whatever they put in it, the green stuff, naphtha or mineral spirits, I suppose??) Then the dealership bought a Bend-Pac automatic trans washer that used a powdered detergent made for aluminum trans cases and parts. It took a lot of the work out of parts washing.....If you know someone that knows someone that has a brother-in-law that does automatic transmission repair, get them to wash it. Don't forget to take them a 12 carton of Shiner in bottles. _________________ '69 Karmy, '69 Camper, Meyers clone, '65 drag bug, 10.78 @ 128 (sold it) '51 Dodge farm truck,
'09 MB E350 '18 MB E400, '65 Plymouth Valiant convertible and a '19 Ford F250 King Ranch (nicer, but dirty, farm truck)
VWoA factory trained line tech 75 till 90 or so
ASE Master Certification
VWoA Assoc. of Quality Technicians inductee (One of 25 in the five state southwest region)
La Confrerie des Chevaliers du Tastevin (San Angelo Chapter)
TCU ......GO FROGS!!!!!! |
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nsracing Samba Member
Joined: November 16, 2003 Posts: 9437 Location: NOVA
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Posted: Wed Jan 30, 2019 8:08 pm Post subject: Re: vw case/block cleaning? |
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do NOT hot tank that thing or it will turn into instant trash.
Get it hot jetwashed for non-ferrous materials. Most machine shops will have the washers.
If not, send it to me I can hot jetwash for you. Likely it will line linebore and things anyway. let me know on that too. |
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Chickensoup Samba Member
Joined: January 06, 2018 Posts: 5368 Location: Good Hope, GA
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Posted: Thu Jan 31, 2019 5:45 am Post subject: Re: vw case/block cleaning? |
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It looks like a have a few options now. i have a large blasting cabinet that will fit half a Volkswagen case. Is this safe also? i know it depends on what materials you use but if so can i use nut shells? |
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FeelthySanchez Samba Member
Joined: February 03, 2011 Posts: 1349 Location: Now is that a real poncho, or a Sears poncho?
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Posted: Thu Jan 31, 2019 7:46 am Post subject: Re: vw case/block cleaning? |
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Plenty of fine advice above. Most shops don't charge extra for case cleaning, & for the few that do - it's minimal.
Pressure wash if you have the equipment, but why run in circles here: just take the case, crank, rods, flywheel & heads in.
Get a linebore & have them measure the crank for proper bearing sizes. One stop - done. _________________
modok wrote: |
I would like if you had enough clue to communicate what you are doing. |
Ryan Tucker wrote: |
Enough clue..Whats that mean? |
OldIronSpine wrote: |
I'm not sure how compression works.
Turbos don't produce torque, they produce HP. Instead of torque.
The real problem with NA engines is you don't hear the nice whine of the turbo as it spools up.
Before I commit, I'm going to do more research because I don't really know what piston rings are. |
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oldschool5er Samba Member
Joined: May 28, 2007 Posts: 804 Location: Ohio
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Posted: Thu Jan 31, 2019 8:50 am Post subject: Re: vw case/block cleaning? |
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Chickensoup wrote: |
It looks like a have a few options now. i have a large blasting cabinet that will fit half a Volkswagen case. Is this safe also? i know it depends on what materials you use but if so can i use nut shells? |
I do use soda blast on cases if they are not easily cleaned. Soda is water soluble so rinses with water. BUT I don't blast anything without pulling the Galley plugs. No mattter what media you use it will get back into the blind areas of the oil passages and you can't get it out without pulling the Galley plugs. Even Soda will leave a residual amount at the end of the galley that can't be rinsed out without the plugs removed. If you feel like a detergent wash is not cutting it, the only media I would use is Soda. I know walnut shell, and even glass beads have been used but I think it is too harsh and Soda is cheap and easy to rinse. PULL the Galley plugs. _________________ HRE in Westerville,Ohio
Full machine shop with all types of CNC. Rapid prototyping available, CNC Plasma cutting, 3D printing and Laser engraving. |
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andor Samba Member
Joined: June 21, 2007 Posts: 44 Location: Norway
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Posted: Thu Jan 31, 2019 9:39 am Post subject: Re: vw case/block cleaning? |
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Vapor blasting is also very nice. Gives a nice Oem finish on aluminum.
I have only tried it on the wbx case, but will try it on a T1 case this weekend.
Reg
c |
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Chickensoup Samba Member
Joined: January 06, 2018 Posts: 5368 Location: Good Hope, GA
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Posted: Thu Jan 31, 2019 10:41 am Post subject: Re: vw case/block cleaning? |
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andor wrote: |
Vapor blasting is also very nice. Gives a nice Oem finish on aluminum.
I have only tried it on the wbx case, but will try it on a T1 case this weekend.
Reg
c |
i have looked at this method before but i do not know much about it. do you need a special blasting cabinet? |
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modok Samba Member
Joined: October 30, 2009 Posts: 26743 Location: Colorado Springs
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Posted: Thu Jan 31, 2019 10:56 am Post subject: Re: vw case/block cleaning? |
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Chickensoup wrote: |
It looks like a have a few options now. i have a large blasting cabinet that will fit half a Volkswagen case. Is this safe also? i know it depends on what materials you use but if so can i use nut shells? |
Are you trying to clean the case so it looks pretty? Waste of effort.
The purpose of cleaning engine parts is to remove abrasive material, not to make it look nice. mag is ugly, just accept it. |
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Dale M. Samba Member
Joined: April 12, 2006 Posts: 20365 Location: Just a tiny bit west of Yosemite Valley
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Posted: Thu Jan 31, 2019 11:14 am Post subject: Re: vw case/block cleaning? |
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If you can find place, "dry ice" blasting removes all the crap and leaves "nothing" behind except the crud off the object being cleaned.... No grit, no soda, no caustics...
Dale _________________ “Fear The Government That Wants To Take Your Guns" - Thomas Jefferson.
"Kellison Sand Piper Roadster" For Street & Show.
"Joe Pody Sandrover" Buggy with 2180 for Autocross (Sold)
============================================================
All suggestions and advice are purely my own opinion. You are free to ignore them if you wish ... |
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andor Samba Member
Joined: June 21, 2007 Posts: 44 Location: Norway
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Posted: Thu Jan 31, 2019 11:31 am Post subject: Re: vw case/block cleaning? |
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Chickensoup wrote: |
andor wrote: |
Vapor blasting is also very nice. Gives a nice Oem finish on aluminum.
I have only tried it on the wbx case, but will try it on a T1 case this weekend.
Reg
c |
i have looked at this method before but i do not know much about it. do you need a special blasting cabinet? |
Yes, special cabinet. This is high pressure water with 20% glass media.
Gives the aluminum a closed surface. Will not stain as glass or sand blasted.
Many bike restorers use it. |
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Bruce Amacker Samba Member
Joined: December 26, 2007 Posts: 1786 Location: Cleveland, Ohio
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