 gear confusion |
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| TimT |
 Oct 9 2003, 06:42 PM
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#1
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retired  Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313  |
OK, I bought my 914 a year ago, it came with a built spare transmission, and enough spares to build another tranny.
I was going through all the spare gears that came with my purchase (of course none were matched) and I came across this: the gear on the left is stamped "P" has 29 teeth, the gear on the right is stamped "M" has 29 teeth. a 901 P is 23:27 the M is 22:29 Are the 914 gears labeled differently than the 901 gears? I also have a "F" input shaft from a known 901 box, In my box of 914 tranny spares I have a shaft marked "S" with the same amount of teeth..(18) whats up with that? Brad, I dont know dick about 914 boxes... I thought they were 901's and the gears would be labeled as such. BTW Ill have a bunch of 901 gears for sale as soon as I figure this all out... I have most of the alphabet covered (IMG:style_emoticons/default/beerchug.gif) Attached image(s) 
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Replies(1 - 11)
| TimT |
Oct 9 2003, 07:07 PM
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#2
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
oops I should add that "M" gear set is from my 901 parts bin...its a known gear set..
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| Bleyseng |
Oct 9 2003, 08:41 PM
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#3
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Aircooled Baby! Group: Members Posts: 13,035 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
So far out of the three 914 trannys I have taken apart, the gear sets were labeled whatever. I had to count the teeth!
Geoff |
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| redshift |
Oct 9 2003, 08:48 PM
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#4
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Bless the Hell out of you! Group: Members Posts: 10,926 Joined: 29-June 03 Member No.: 869 |
I have an H mainshaft. How much trouble is it to machine off?
M |
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| Brad Roberts |
Oct 9 2003, 11:58 PM
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#5
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Geoff is correct.. most of the letters dont mean anything. You have to count the teeth and "determine" what it is...then mark it.
I may be semi interested in some of the gears. B |
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| J P Stein |
Oct 10 2003, 02:13 AM
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#6
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
I'm interested in either of the first 2 letters of the alphabet....mostly the 2nd.
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| brant |
Oct 10 2003, 08:33 AM
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#7
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914 Wizard Group: Members Posts: 11,640 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains 
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I'm interested in a few gears also...
I'll watch here for something when your ready to post what you have.. or please mail me a list at your convience. brant914@hotmail.com |
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| brant |
Oct 10 2003, 12:50 PM
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#8
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914 Wizard Group: Members Posts: 11,640 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains
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Tim,
you've got PM brant |
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| TimT |
Oct 10 2003, 03:35 PM
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#9
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
What gets me is all the 911 901s Ive worked on, the gears were clearly marked with a letter that corresponded with the ratios published by Porsche,.
No counting teeth. The 914 gears have letters punched in them that apparently mean nothing. You would think the gear suppliers were the same for the 901 and 914 boxes? When I get everything sorted Ill post a list of the gear sets I have using the 901 letter system I know I have the following already: A,F,GA,K,Q,V,M,S,O,Z,ZD (F&GA are input shafts) Ill have to add more to the list soon. BTW M&S are not for sale, but it looks like I may have doubles of the M&S right now I have 2 914 sideshifters, a 911 box and a 901 box..YIKES |
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| brant |
Oct 10 2003, 04:04 PM
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#10
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914 Wizard Group: Members Posts: 11,640 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains
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Brad can you answer a question for me.
Is there sometimes a gear that will work in one location and not another. what I'm getting at is that I was told to find a 4th gear "O" and the person who told this to me seemed to be saying that there were some "O"'s that were made for 4th and some that were made for other spots in the box. Does this make since? brant |
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| TimT |
Oct 10 2003, 07:36 PM
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#11
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
JP sorry, I have "A"'s the next gear I have is an "F" LOL
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| TimT |
Oct 11 2003, 06:53 PM
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#12
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
ok sorted some stuff out today, in addition the the gears I previously posted, I have:
29:23 (N or Z) 27:25 (R or V) 31:22 (Z) I have two F input shafts ( second gears) |
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