 Drilling intermediate plate for bellcrank post, how deep can I go? |
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| thesey914 |
 Nov 15 2007, 04:34 PM
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#1
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Senior Member  Group: Benefactors Posts: 1,155 Joined: 1-January 03 From: Staffordshire -England Member No.: 66   |
How deep can I go? There looks like there is a pressed in plug where I need to drill, can this be extracted? My trans is a tailshift (think the inter-plates are the same anyway)
I'm planning to make the post out of a piece of silversteel and press it in -did the factory do this or thread the post on the 914-6? |
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Replies(1 - 8)
| davep |
Nov 15 2007, 04:39 PM
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#2
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914 Historian Group: Benefactors Posts: 5,143 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada |
The post is threaded 8mm x 1.25, threaded section is 14mm long, your hole will have to be deeper and threaded with a bottoming tap.
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| dr914@autoatlanta.com |
Nov 15 2007, 04:44 PM
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#3
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914 Guru Group: Members Posts: 7,866 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
QUOTE(thesey914 @ Nov 15 2007, 03:34 PM)  How deep can I go? There looks like there is a pressed in plug where I need to drill, can this be extracted? My trans is a tailshift (think the inter-plates are the same anyway) I'm planning to make the post out of a piece of silversteel and press it in -did the factory do this or thread the post on the 914-6? If a tail shift the hole for the stud is already there! |
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| Dr Evil |
Nov 15 2007, 08:32 PM
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#4
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Send me your transmission! Group: Members Posts: 22,999 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region 
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The hole goes as deep as the perpendicular hole for the underlying stud from the case to the tail cone. The hole should be there already. I used a spare tranny case stud and it has worked well.
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| thesey914 |
Nov 16 2007, 10:16 AM
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#5
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Senior Member Group: Benefactors Posts: 1,155 Joined: 1-January 03 From: Staffordshire -England Member No.: 66 |
Thanks for the reply's (couldn't have asked for 3 more knowledgeable guys (IMG:style_emoticons/default/biggrin.gif) )
My hole seems to have a plug in it (cue laughter). I might try and pull it with a slide hammer but basically I can drill this out down to the through stud if I'm understanding you correctly. (IMG:http://www.thesey.com/pictures/9012.jpg) |
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| Cap'n Krusty |
Nov 16 2007, 11:05 AM
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#6
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
What is "silversteel"? The Cap'n
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| sixnotfour |
Nov 16 2007, 11:11 AM
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#7
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914 Wizard Group: Members Posts: 10,432 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains 
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cold roll
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| davep |
Nov 16 2007, 11:20 AM
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#8
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914 Historian Group: Benefactors Posts: 5,143 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada |
From your photo it may be a plug. You would have to drill well undersize to ensure that if there are threads in there, then they are not damaged. I would remove that stud to prevent damage should you have to drill through, and also to provide room for the end of the drill bit and the end of the tap should you require them. I wonder how far into 1972 MY they drilled and tapped those holes. The 914/6 ended so early that those operations were wasted.
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| thesey914 |
Nov 16 2007, 03:46 PM
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#9
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Senior Member Group: Benefactors Posts: 1,155 Joined: 1-January 03 From: Staffordshire -England Member No.: 66 |
Silversteel is sometimes called bright steel, basically high carbon steel that doesn't rust easily and machines well. I think it used to be used to make razors becasue it holds a fine edge
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