 Bolt Cleaning |
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| EdwardBlume |
 Sep 15 2010, 11:13 AM
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#1
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914 Wizard  Group: Members Posts: 12,338 Joined: 2-January 03 From: SLO Member No.: 81 Region Association: Central California 
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What is the best way to clean / restore old dirty bolts that CAN be reused?
Or is just easier to buy new? |
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| McMark |
Sep 15 2010, 11:15 AM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Easier to buy new. You can wire wheel them, but corroded fasteners have lost their zinc coating, so they won't stay clean for long.
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| Tom_T |
Sep 15 2010, 11:31 AM
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#3
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TMI.... Group: Members Posts: 8,318 Joined: 19-March 09 From: Orange, CA Member No.: 10,181 Region Association: Southern California
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Rob - if by "CAN be reused" you mean not corroded - then WD40, parts cleaner, soda blast, etc. can work - but you may want to then strip the cleaning agent with acetone/etc. & send them out for replating to gold Cad or Zinc per original finish on them. Sept. 2010 "Auto Restorer" has a good article on bolt types & strengths & markings thereon FWIW. Otherwise if corroded then, I agree with Mark if they're available today - but make sure you're matching the correct type/size/finish & strength as used with OE.
Mark Heard has told me that you can add them to a PMB caliper rebuild order & Eric Shea will send them out with the appropriate type batch replate when he does his caliper resto's - otherwise a local plater can do them - but check price vs. new as they may be the same or close enough to not warrant the time & effort - even if it's for Dad's 914! (IMG:style_emoticons/default/biggrin.gif) |
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| EdwardBlume |
Sep 15 2010, 11:39 AM
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#4
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914 Wizard Group: Members Posts: 12,338 Joined: 2-January 03 From: SLO Member No.: 81 Region Association: Central California
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Cool.
Its mainly for the brake dust shield bolts and the rear shock bolts. It'd be a shame to use old bolts when I'm reassemblin' the bling... [font=Arial] |
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| Eric_Shea |
Sep 15 2010, 11:44 AM
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#5
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PMB Performance Group: Admin Posts: 19,275 Joined: 3-September 03 From: Salt Lake City, UT Member No.: 1,110 Region Association: Rocky Mountains  |
It's always cheaper to buy new when you can. Dust shield bolts should be purchased... I have rear shock bolts in stock if you want them.
Look here: www.mcmaster.com We zinc plate (yellow and black) all of the fasteners that we cannot purchase new which is, all M7, M8 Ribe and M9 stuff. If you have a batch you want plated send them on, especially if your local plater has a minimum (most seem to). The Porsche Classic Parts Catalog is invaluable in getting proper sizing and thread pitch: http://www.porsche.com/usa/accessoriesands...partscatalogue/ |
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| underthetire |
Sep 15 2010, 12:32 PM
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#6
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
Lennie was trying to do his. I'm wondering for batch clean up with screws and nuts, if one of those spark plug media blaster units would work if slightly modified.
http://www.harborfreight.com/pneumatic-spa...aner-32860.html |
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| Drums66 |
Sep 15 2010, 03:23 PM
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#7
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914 Rudiments Group: Members Posts: 5,321 Joined: 15-January 03 From: Coronado,Cali Member No.: 151 Region Association: Southwest Region |
QUOTE(McMark @ Sep 15 2010, 10:15 AM)  You can wire wheel them, get out the wire wheel & brush!.......work it! (IMG:style_emoticons/default/poke.gif) (IMG:style_emoticons/default/bye1.gif) |
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| qa1142 |
Sep 15 2010, 07:09 PM
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#8
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Whiplash Group: Members Posts: 1,514 Joined: 1-June 04 From: Lake Zurich, Illinois Member No.: 2,140 |
Another Brad Mayeur trick
Get yourself a rock tumbler, great for small parts Throw your parts in let it run with tumbling compound in it (IMG:style_emoticons/default/stirthepot.gif) Come back in a day or two Done - no work at all |
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| 914Sixer |
Sep 15 2010, 07:34 PM
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#9
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914 Guru Group: Members Posts: 8,882 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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I clean all my bolts first, then wire wheel them. Then they go off to the platter but I make sure I have 50 lbs or more because of the cost. Here is a shot of what comes back. These shiny bolts took many hours to clean and polish up with the coarse and then the fine wire wheel. The large bolts are really cost effective this way as most of them are $2.00 and up.
Attached image(s) 
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