I blew a seal., Transmission. Not eskimo sex. |
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I blew a seal., Transmission. Not eskimo sex. |
VegasRacer |
Mar 14 2004, 02:04 PM
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#1
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ELVIRA Group: Benefactors Posts: 8,504 Joined: 27-March 03 From: Between Scylla and Charybdis Member No.: 481 Region Association: None |
The last time I raced in November I blew out the main transmission seal. This time it was the right half shaft seal. I'm thinking there must be some other problem to cause these failures. Any ideas???
There were 4 other 914's at the VARA race this weekend besides mine. All of the others were sixes. Frank Beck won easily from the pole position. Attached thumbnail(s) |
Brad Roberts |
Mar 14 2004, 02:08 PM
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#2
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Just about every time we install a LSD in a 901 we have to stake the output shaft seals. It shouldnt have ended your day.. just made a mess.
You have probably already checked.. but make sure the breather is pointed the correct direction and not blocked in any form or fashion. You may also want to increase the size of the breather and take it to a trunk mounted "catch can" or something. We install a -6 (or -8) I forget unless I'm standing over a tranny.. and run the line from that. Too much internal pressure. B |
Brad Roberts |
Mar 14 2004, 02:10 PM
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#3
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
It sucks being poor. Seeing peoples event pics makes me (IMG:style_emoticons/default/barf.gif) I should be at Buttonwillow for a PCA Time Trial.. but NO.. I had to F myself.
B |
VegasRacer |
Mar 14 2004, 02:12 PM
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#4
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ELVIRA Group: Benefactors Posts: 8,504 Joined: 27-March 03 From: Between Scylla and Charybdis Member No.: 481 Region Association: None |
mine
Attached thumbnail(s) |
Aaron Cox |
Mar 14 2004, 02:13 PM
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#5
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
is it me or do those fuchs on the red car looks super deep and like 17" (IMG:style_emoticons/default/blink.gif)
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Brad Roberts |
Mar 14 2004, 02:13 PM
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#6
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Yeah.. gear lube on the headers.. YEEHAW..LOL
Clean up your mess.. you know better.. brake cleaner and some rags... B |
VegasRacer |
Mar 14 2004, 02:18 PM
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#7
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ELVIRA Group: Benefactors Posts: 8,504 Joined: 27-March 03 From: Between Scylla and Charybdis Member No.: 481 Region Association: None |
Yea, I checked that first. The breather was not clogged and it was pointed the right way. Last time I was able to find a new main seal and replace it in time for the green flag. This time I could not locate a half shaft seal.
Towing home early sucks. At least it was only a half hour drive to feel sorry for myself this time. Aaron - 15 x 7 inch wheels are all that is allowed. 205's on the front. 225's on the rear. |
Brad Roberts |
Mar 14 2004, 02:22 PM
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#8
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Move to the bigger breather setup. What RPM are you turning this engine ?
B |
VegasRacer |
Mar 14 2004, 02:24 PM
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#9
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ELVIRA Group: Benefactors Posts: 8,504 Joined: 27-March 03 From: Between Scylla and Charybdis Member No.: 481 Region Association: None |
7000 rmp
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Brad Roberts |
Mar 14 2004, 02:30 PM
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#10
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Um.. YEAH !! you have to go to a bigger breather... no wonder you are having issues.
The little 1.8 engines at 8k RPM sling shit everywhere.. we learned the hardway on how to keep everything inside the cases.. gotta figure the input shaft is turning 7K also.. torque normally kicks the side seals out with some internal pressure added in. B |
VegasRacer |
Mar 14 2004, 02:37 PM
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#11
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ELVIRA Group: Benefactors Posts: 8,504 Joined: 27-March 03 From: Between Scylla and Charybdis Member No.: 481 Region Association: None |
Thanks Brad. I'll give it a try. (IMG:style_emoticons/default/smash.gif)
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Brad Roberts |
Mar 14 2004, 02:49 PM
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#12
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Pretty cheap easy fix...
B |
VegasRacer |
Mar 14 2004, 02:51 PM
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#13
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ELVIRA Group: Benefactors Posts: 8,504 Joined: 27-March 03 From: Between Scylla and Charybdis Member No.: 481 Region Association: None |
QUOTE(Brad Roberts @ Mar 14 2004, 12:49 PM) Pretty cheap easy I dated her. (IMG:style_emoticons/default/wub.gif) |
seanery |
Mar 14 2004, 04:02 PM
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#14
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waiting to rebuild whitey! Group: Retired Admin Posts: 15,852 Joined: 7-January 03 From: Indy Member No.: 100 Region Association: None |
Hell, I'd settle for one of the 3 (IMG:style_emoticons/default/wacko.gif)
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VegasRacer |
May 6 2004, 06:10 PM
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#15
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ELVIRA Group: Benefactors Posts: 8,504 Joined: 27-March 03 From: Between Scylla and Charybdis Member No.: 481 Region Association: None |
Brad - Got any more ideas? (IMG:style_emoticons/default/idea.gif) (IMG:style_emoticons/default/confused24.gif)
I blew out the main seal again. (IMG:style_emoticons/default/headbang.gif) I put in a bigger breather with a catch in the rear trunk. What else can I do to fix the problem (IMG:style_emoticons/default/icon14.gif) |
Brad Roberts |
May 6 2004, 07:38 PM
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#16
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Main seal or output flange seal ??
What does your pilot bearing look like ?? Is the shaft moving around.. like something else in the box is failing and causing the seal to drop out ? B |
VegasRacer |
May 6 2004, 09:03 PM
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#17
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ELVIRA Group: Benefactors Posts: 8,504 Joined: 27-March 03 From: Between Scylla and Charybdis Member No.: 481 Region Association: None |
Main seal is the one that leaked (again) this time.
I was also thinking maybe the pilot bearing. I am not going to have a chance to drop the tranny until next week to check it out. If I shift at 6000 rpm everything is fine. When I push it to 7000 plus is when it fails. |
Brad Roberts |
May 6 2004, 11:52 PM
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#18
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
I'm betting the pilot is toast and it is allowing the input shaft to move around (a lot)
I have seen it a few times on the V8 conversion cars. B |
4WheelDrifter |
May 7 2004, 09:23 AM
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#19
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Having a mid-life crisis @ 35 Group: Benefactors Posts: 201 Joined: 15-April 04 From: Bethel, CT Member No.: 1,934 |
I'm still laughing at the "Eskimo sex" mention in the subject. (IMG:style_emoticons/default/laugh.gif)
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VegasRacer |
May 11 2004, 10:45 PM
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#20
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ELVIRA Group: Benefactors Posts: 8,504 Joined: 27-March 03 From: Between Scylla and Charybdis Member No.: 481 Region Association: None |
QUOTE(Brad Roberts @ May 6 2004, 09:52 PM) I'm betting the pilot is toast and it is allowing the input shaft to move around (a lot) Attached is a photo of the pilot bearing. Say what? (IMG:style_emoticons/default/confused24.gif) You don't see a picture? That's because there was no pilot bearing! (IMG:style_emoticons/default/w00t.gif) I dropped the tranny and pulled the fly wheel. There was nothing in the center. (IMG:style_emoticons/default/ohmy.gif) The PO had balanced and lightened the fly wheel. I can't remember ever doing anything to it since I bought the car. Is it really possible that I have been driving it for 7 years with no pilot bearing? The hole for the bearing is very rough with lots of sharp edges inside. The shaft only has a few light scuffs that will buff out easily. I also found that the material sandwiched in the pressure plate is breaking apart. I am feeling very lucky and very stupid. (IMG:style_emoticons/default/wacko.gif) (IMG:style_emoticons/default/headbang.gif) Easy fix. (IMG:style_emoticons/default/smash.gif) Get new fly wheel and have it machined to match. Install pilot bearing. Get new 6 spring early 911 pressure plate. Drive it 'till I break something else. (IMG:style_emoticons/default/MDB2.gif) |
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