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jay c
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« on: November 04, 2010, 20:40:04 pm » |
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l'm converting my discs and drums to 14mm press in studs. Does anyone out there know the correct size hole to drill for a good interference fit on the splines?
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danny gabbard
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« Reply #1 on: November 04, 2010, 21:05:29 pm » |
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About .002-.003 crush is what I used on my 356-B drums. Make sure to give the holes a good countersink on the wheel face side of hole. Material rise's in direction of being pressed. And I set drum face's on thick wall tube, while pressing studs in. I hope that helps.
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A poor craftsman, Blame's it on poor tools. GAB-FAB shop # 775 246-3069
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jay c
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« Reply #2 on: November 04, 2010, 22:02:58 pm » |
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cheers danny. Only asked because i just got my discs and drums back from a local engineer and the holes have been drilled to 0.541(13.75mm). My studs are 0.543(13.8mm) on the shank between the splines and the thread but 0.586(14.9mm) on the actual splines. The engineer assured me i would be able to press them in but i am worried about doing damage. They aren't gonna fit are they?
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danny gabbard
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« Reply #3 on: November 05, 2010, 02:33:06 am » |
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You can do what I do when I am not sure of what I am doing, Try it on something that does not matter! Find a junk drum and practice.
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A poor craftsman, Blame's it on poor tools. GAB-FAB shop # 775 246-3069
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speedwell
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« Reply #4 on: November 05, 2010, 17:34:46 pm » |
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there's a report in a vw trends , if i found it , i will scan , but i remember it was on vw drums not porsches  |
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Harry/FDK
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« Reply #5 on: November 05, 2010, 20:26:02 pm » |
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You can do what I do when I am not sure of what I am doing, Try it on something that does not matter! Find a junk drum and practice.
X2 (plus you have 1.15 mm interference  ) After double checking, warm up the drums/discs (gently) and leave the studs in your freezer overnight. |
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« Last Edit: November 05, 2010, 20:28:51 pm by FDK/Hurry »
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Done ? Not Yet.
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jay c
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« Reply #6 on: November 05, 2010, 21:22:17 pm » |
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cheers fellas. Drums are vw drilled 5x130 so that trends report could help determine hole size. Would be awesome if you could find it speedwell
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danny gabbard
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« Reply #7 on: November 05, 2010, 21:44:44 pm » |
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That just means you have 5 holes- 130 mm from center, Its the size of hole and size and DIA of bolt being pressed into hole is what your looking for.
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A poor craftsman, Blame's it on poor tools. GAB-FAB shop # 775 246-3069
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jay c
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« Reply #8 on: November 05, 2010, 22:42:28 pm » |
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was just noting that the drums are vw and not porsche because speedwell said the article was on vw drums. Sorry for any confusion
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speedwell
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« Reply #9 on: November 05, 2010, 23:10:07 pm » |
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here we go, the issue was july 2004
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speedwell
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« Reply #10 on: November 05, 2010, 23:16:21 pm » |
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jay c
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« Reply #11 on: November 06, 2010, 00:09:17 am » |
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nice one dude
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speedwell
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« Reply #12 on: November 06, 2010, 12:32:54 pm » |
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nice one dude
if you want i can send you those in higher res let me know fabs |
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jay c
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« Reply #13 on: November 06, 2010, 17:06:00 pm » |
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they were perfectly clear thank fab. Very helpful too. Holes are being redone today. Thanks again
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Russell
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« Reply #14 on: November 06, 2010, 17:57:25 pm » |
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37/64 th drill bit and away you go.....
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Best Regards
Russell
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Harry/FDK
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« Reply #15 on: November 08, 2010, 18:25:23 pm » |
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nice one dude
if you want i can send you those in higher res let me know fabs Dr. Archive, could you send this in high res. to me. I need your "recept" Thanks, hurry50@msn.com |
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Harry/FDK
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« Reply #16 on: November 09, 2010, 18:17:28 pm » |
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Perfect Fabs,
Au Revoir.
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Done ? Not Yet.
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