Parts Catalog Accessories Catalog Tech Info Tech Forums
 
  Search our site:    
 Cart  | Project List | Order Status | Help    
  We salute a legendary member of the community.
Thank you for selflessly sharing your wisdom with us...
Go Back   Pelican Parts Technical BBS > 1- Porsche Technical Forums > Porsche 924/944/968 Technical Forum

Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Self-Proclaimed Newb
 
Brozoar's Avatar
 
Join Date: Feb 2011
Posts: 369
Garage
Send a message via Skype™ to Brozoar
Gearbox Grinding

I have an 85.5 NA, 183,000-some miles, and I've been having a bit of an issue changing gears. For the most part it's fine when I'm already going. But switching into first and sometimes second, until she's warmed up and been driving for awhile, I often find myself fighting tooth and nail just to pop the lever into gear. Other times, clutch pedal all the way to the floor, I still grind gears a little bit (again, almost exclusively first or second gear).

So I want to narrow down a list of possible culprits. My pedal never sinks or sticks to the floor, so I seriously doubt it's my master or slave cylinder. According to the previous owner, the clutch only had a few thousand miles on it when I bought it - though he had no paperwork, so I'm taking his word with a grain of salt. But the disk still feels grabby and tight.

My suspicion is that it's the gear lever/linkage, that something's just gone loose somewhere down the line, because, say, if I find myself fighting to get into first, I'll depress the clutch, pop it into third, pop it out again, and then it'll go into first alright. But I want to hear other opinions on what it might be.
__________________
1983 - Black 944NA "Stella" R.I.P.
1985.5 - Guards Red 944NA "Leila" Daily driver - replaced windshield, new Yokohama all-season tires, Schnell short-shift, MSD 6AL CDI
1985.0 - Maraschino Red 944NA "Trista" Track car/beater - my new pastime/passion project
Old 12-14-2011, 02:53 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #1 (permalink)
9FF 9FF is offline
Too Many Porsches
 
9FF's Avatar
 
Join Date: Sep 2011
Location: Palm Beach, FL
Posts: 1,031
Garage
This could be a number of things from air in the clutch hyd circuit to loose linkages or even worn synchros.

1. If the master/slave cyls are ok the rubber line running between them could be the cause or the circuit might need bleeding.

2. The linkage at the shifter and the intermediate shifter bar on the transmission are both prone to wear and would cause bad shifting.

Probably one of those two things, check them and drain/refil you trans fluid with Swepco or Redline. If there is no improvement you might be looking at synchros and a trans rebuild. GL
Old 12-14-2011, 06:33 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #2 (permalink)
Just thinking out loud
 
mattdavis11's Avatar
 
Join Date: Nov 2001
Location: Close by
Posts: 4,454
You wouldn't believe the difference when the trans oil gets changed. I go with amsoil, but to each his/her own.
__________________
83 944
91 FJ80
84 Ram Charger
Old 12-14-2011, 06:42 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #3 (permalink)
Registered User
 
Pete R's Avatar
 
Join Date: Oct 2010
Location: New Hampshire
Posts: 2,160
Garage
The fact that you said "until warmed up" makes me think (like the other guys) that a trans fluid change may help. The 3 fluids mentioned above are very good. I would use a synthetic. I had cold shifting issues in my 928 and a switch to one of the above fixed it. With 183k your syncros need all the help they can get.
__________________
1979 928 85 Euro 2v motor,S4 Brakes and suspension, 1988 951 street legal track car(sold)
Neon SRT4 track car
Old 12-14-2011, 06:50 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #4 (permalink)
Just thinking out loud
 
mattdavis11's Avatar
 
Join Date: Nov 2001
Location: Close by
Posts: 4,454
remove the fill plug first!
__________________
83 944
91 FJ80
84 Ram Charger
Old 12-14-2011, 07:11 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #5 (permalink)
Self-Proclaimed Newb
 
Brozoar's Avatar
 
Join Date: Feb 2011
Posts: 369
Garage
Send a message via Skype™ to Brozoar
Thanks guys! =) I'm gonna try and get new fluids in when I have a garage to work in. I'll probably double-check the pedal travel too, that might help maybe?
__________________
1983 - Black 944NA "Stella" R.I.P.
1985.5 - Guards Red 944NA "Leila" Daily driver - replaced windshield, new Yokohama all-season tires, Schnell short-shift, MSD 6AL CDI
1985.0 - Maraschino Red 944NA "Trista" Track car/beater - my new pastime/passion project
Old 12-15-2011, 09:47 AM
  Recommend this thread for the PelicanWiki    Reply With Quote #6 (permalink)
 
Now Available for Ordering:   101 Projects For Your BMW 3 Series 1982-2000  [more info]
Registered User
 
redstrosekNic's Avatar
 
Join Date: Feb 2011
Posts: 1,609
Garage
Send a message via AIM to redstrosekNic
Quote:
Originally Posted by mattdavis11 View Post
remove the fill plug first!
+1!!!
__________________
1978 Porsche 924
1975 Strosek Porsche 911S (a bit modified...)
Old 12-15-2011, 10:31 AM
  Recommend this thread for the PelicanWiki    Reply With Quote #7 (permalink)
Registered User
 
Join Date: Oct 2009
Location: New Zealand
Posts: 851
Garage
Linkages

While your under there may as well check the gear shift linkages and coupler.
Have you got a lot of (loose) movement @ the shifter?
__________________
1985 944 2.7 motor,1989 VW Corrado 16v,57 project plastic speedster t4 power,1992 mk3 Golf,2003 Audi qt avant,1987 mk2 Golf GTI,VW 4 seat offroader,1973 914 coming soon,six to go in.
Past cars, 17 aircooled VW's and lots of BMW's
Old 12-15-2011, 10:48 AM
  Recommend this thread for the PelicanWiki    Reply With Quote #8 (permalink)
Self-Proclaimed Newb
 
Brozoar's Avatar
 
Join Date: Feb 2011
Posts: 369
Garage
Send a message via Skype™ to Brozoar
I'm tempted to say yes, but then I don't really know what "a lot" is; my '83 had more play. But yes, I'll just say yes. =) And I'm almost sure that's at least a contributing factor.

What is this fill plug you speak of? Sorry, I've just never had the occasion to do anything with the tranny before. And I forgot to mention; apparently the clutch and brakes use the same reservoir? It might be helpful to note that my brake lines just burst and had to be replaced a few weeks ago...
__________________
1983 - Black 944NA "Stella" R.I.P.
1985.5 - Guards Red 944NA "Leila" Daily driver - replaced windshield, new Yokohama all-season tires, Schnell short-shift, MSD 6AL CDI
1985.0 - Maraschino Red 944NA "Trista" Track car/beater - my new pastime/passion project
Old 12-15-2011, 05:24 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #9 (permalink)
9FF 9FF is offline
Too Many Porsches
 
9FF's Avatar
 
Join Date: Sep 2011
Location: Palm Beach, FL
Posts: 1,031
Garage
"What is this fill plug you speak of? Sorry, I've just never had the occasion to do anything with the tranny before. And I forgot to mention; apparently the clutch and brakes use the same reservoir? It might be helpful to note that my brake lines just burst and had to be replaced a few weeks ago.."

Drain plug is on the LH side of the trans, its what you remove when you change the oil in the trans.

If they didn't bleed the clutch when they fixed the brake fluid leak that's your problem. You need to bleed the clutch, they share the same reservoir.
Old 12-15-2011, 05:58 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #10 (permalink)
Basket Case
 
Join Date: Oct 2011
Location: Sydney, Australia
Posts: 34
Garage
The transaxle has two hex-head bolts (18mm) on the left side of the housing. The top is the fill plug, the bottom is the drain plug.

Pull the top one out first just to make sure you can get it out, as if it's stuck fast, you're kinda stuffed once you drain all the fluid out the bottom hole.

For filling the transmission, I used the trick Clarks garage recommended - A length of clear pipe fed up through the wheel arch and two people.
__________________
1983 Porsche 944 "The Captain" - Project for 2013 Targa Tasmania
Old 12-15-2011, 06:35 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #11 (permalink)
Registered User
 
Jrboulder's Avatar
 
Join Date: Apr 2010
Location: Scottsdale, AZ
Posts: 2,243
Garage
The torque spec is 17 lb-ft and don't go over!
Old 12-15-2011, 07:30 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #12 (permalink)
 
Now available:  101 Projects for Your Porsche Boxster!
Self-Proclaimed Newb
 
Brozoar's Avatar
 
Join Date: Feb 2011
Posts: 369
Garage
Send a message via Skype™ to Brozoar
To think that daddy laughed when I bought that torque wrench. Aha! It is I who laughs now!

Thanks a lot fellers.
__________________
1983 - Black 944NA "Stella" R.I.P.
1985.5 - Guards Red 944NA "Leila" Daily driver - replaced windshield, new Yokohama all-season tires, Schnell short-shift, MSD 6AL CDI
1985.0 - Maraschino Red 944NA "Trista" Track car/beater - my new pastime/passion project
Old 12-15-2011, 07:56 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #13 (permalink)
944 addict
 
mytrplseven's Avatar
 
Join Date: Sep 2010
Location: florida
Posts: 1,350
Garage
Send a message via AIM to mytrplseven
I ended up buying 2 torque wrenches for this car. A bigger one for the wheels and larger stuff with 20 ft lbs and above and a smaller one 3 ft lbs to 20 ft lbs) for common things like oil pan gaskets and some smaller bolts on the engine. I use them too, believe me. When you're pulling off things like intake manifolds, cam towers, throttle bodys, etc., it's good to have the proper tools.

A lot of discussions on this website about tranny oils, i.e., redline, amzoil, swepco. You be the judge. I'm pulling my tranny and bellhousing/clutch out to replace a $10 Rear main seal and while the tranny's out, replacing all the rubber outputs seals (hardened rubber) and rear case seal (paper) that's been weeping over the years. My personal tranny oil will be redline 75-90 G4.
__________________
3 944's, 2 Boxsters and one Caman S. Really miss the Cayman.
Old 12-17-2011, 01:06 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #14 (permalink)
Old 12-17-2011, 01:06 PM
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 08:16 AM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.