Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

> Shifter question, Going from 1st to 2nd...
jim_hoyland
post May 16 2013, 03:50 PM
Post #1


Get that VIN ?
*****

Group: Members
Posts: 9,319
Joined: 1-May 03
From: Sunset Beach, CA
Member No.: 643
Region Association: Southern California



I was wondering whether all 914's inherently are unable to shift from 1st to second without quickly--a slight hesitation has been my experience.

The bushing had been replaced, the shifter is a J West rennshift,tranny was rebuilt by Dr Evil, and it shifts fine from 2 to 3, and 4 to 5. Three to four takes a little work, but a lot less than 1 to 2

Any experience or suggestions here ? (IMG:style_emoticons/default/smile.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
jim_hoyland
post May 17 2013, 05:48 PM
Post #2


Get that VIN ?
*****

Group: Members
Posts: 9,319
Joined: 1-May 03
From: Sunset Beach, CA
Member No.: 643
Region Association: Southern California



Went out to try shifting a lower speed/rpms. A little better.When pushing the shifter to 2nd it feels more like their is some sort of friction on the rod or something.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post May 17 2013, 09:11 PM
Post #3


Custom Member
***************

Group: Members
Posts: 24,588
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States



QUOTE(jim_hoyland @ May 17 2013, 07:48 PM) *

Went out to try shifting a lower speed/rpms. A little better.When pushing the shifter to 2nd it feels more like their is some sort of friction on the rod or something.

Did you get a chance to look at the gear stack and how it works?

When you shift into gear, the slider slides up over the synchro band.
There are common places in both the slider and dog teeth on second gear that could be issues, it could also just be a synchro that is not worn in.

I would agree on one point that was made, take a look at the shifter adjustment and see if that can be optimized to give you more leverage to put it into second.
Sometimes adjusting the bar in the tunnel and sliding it forward, into the couple, can give you a hair more leverage.

Mike has certainly seen his share of transmissions, but getting defensive is pointless.
Please take that the right way, a few of us have seen the inside of these boxes before, and broken a few of them in our day.....

Jim,
It can be decent to shift, so keep hunting for the problem.
There are many places it could be, and you need to wrap your head around how it all works together to see where the issue may be.

Look at all the bushings again, and the coupler that sits outside the firewall.
That couple may look good, but new bushings in that makes a ton of difference.

These little variations, the shifter, the bushings, the bend in the rod, and the setup of the transmission and shifter forks can all add up together to be hard to shift.

Look for where the tolerances can be improved without looking inside the box first....do them all again if required, then you can think about what to do next.

You can also remove the shifter from the transmission and see how it feels to shift into Second by hand...it should not be hard to do with no rod on there....

That may isolate where you look next.

Rich
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic
jim_hoyland   Shifter question   May 16 2013, 03:50 PM
Jeffs9146   Mine doesn't have a problem but I refreshed it...   May 16 2013, 03:55 PM
somd914   Does it grind if you shift quickly or do you mean ...   May 16 2013, 03:57 PM
jim_hoyland   Does it grind if you shift quickly or do you mean...   May 16 2013, 04:04 PM
Eric_Shea   Guess: After watching the Doc rebuild video, I...   May 16 2013, 04:07 PM
jim_hoyland   Guess: After watching the Doc rebuild video, I...   May 16 2013, 04:37 PM
r_towle   Hesitation is normal but if its to much, it could ...   May 16 2013, 04:46 PM
914itis   I have the same exact issue. I was told my 2nd gre...   May 16 2013, 07:07 PM
Dr Evil   I am going to bet the rennshift is not adjusted op...   May 16 2013, 08:09 PM
worn   I am going to bet the rennshift is not adjusted o...   May 16 2013, 08:57 PM
Eric_Shea   My understanding is that hesitation is the end res...   May 17 2013, 09:57 AM
worn   My understanding is that hesitation is the end re...   May 17 2013, 10:57 AM
Eric_Shea   I believe 90w is spec. :confused:   May 17 2013, 11:46 AM
r_towle   GL5 dino oil. Any synthetic is to slippery for th...   May 17 2013, 11:56 AM
jim_hoyland   I change the tranny oil every 10K with 90 wt. Abou...   May 17 2013, 12:45 PM
Eric_Shea   :screwy: :D   May 17 2013, 02:04 PM
Eric_Shea   On a more serious note... if you're accelera...   May 17 2013, 02:08 PM
r_towle   So, what he is saying is SLOW DOWN.... Its faster ...   May 17 2013, 02:12 PM
porschefile2010   I had a 930 with a G50 in it and same thing - it...   May 17 2013, 02:20 PM
r_towle   dont forget the 915 in the 911's seocnd sucks ...   May 17 2013, 02:21 PM
r_towle   oh, Our grandfather has the same issue. 356/beetle...   May 17 2013, 02:21 PM
jim_hoyland   Went out to try shifting a lower speed/rpms. A lit...   May 17 2013, 05:48 PM
r_towle   Went out to try shifting a lower speed/rpms. A li...   May 17 2013, 09:11 PM
Dr Evil   There is too much info here to clarify categorical...   May 17 2013, 06:23 PM
Dr Evil   "Mike has certainly seen his share of transmi...   May 17 2013, 09:25 PM
r_towle   Using used parts has risk involved, nothing agains...   May 18 2013, 11:05 AM
partwerks   I had my 1st gear blocked off when I had a taller ...   May 19 2013, 06:24 PM


Reply to this topicStart new topic
2 User(s) are reading this topic (2 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 8th June 2024 - 03:09 PM