differing clutch rod lengths? - page 1 - Troubleshooting - VWDiesel.net The IDI, TDI, and mTDI source.

• differing clutch rod lengths? by motomike33y on 07 Oct, 2010 07:48
• getting ready to mate the 5 speed tranny from my 91 jetta to an 82 rabbit 1.6 diesel engine(rod out of the jetta).  put tranny on last nite,  and tried the clutch lever on the transmission.  lever moved freely but didn't disengage clutch.  clutch rod goes in/out ok.  put new clutch/pressure plate on rabbit(along w/same plate that the clutch rod pushes).  Haven't tried to take the rod out of the 4-speed rabbit tranny, as I don't like to just pull things out without knowing the consequences.  So, any problem with pulling rod out?  Anyone know if there are different lengths?
• #1 by R.O.R-2.0 on 07 Oct, 2010 08:45
• its the center plate in the pressure plate. did you use the one you took out of the car or a different one? i just did a clutch in my GTI last night.. same problem. when you dont use the right thrust plate/throw out plate for the pressure plate, it doesnt push it far enough in. or if it does push it far enough in, its just by barely. get one of those thick rubber gromets that attaches to the clutch arm and the cable goes thru it.. they make a thin one, for 5 speed trannies, and a thick one for 4 speed trannies. if you get that thick gromet, it will help your clutch disengage and make it so that your cable is not adjusted to the end of its length..
  
  you know what im talking about right? the gromet that attaches to the clutch arm that the clutch cable slides thru then you put the clip and stuff on the bottom of that? that little bushing/gromet is what im talking about. the 5 speed unit is ~1/4" to 5/16" thick, while the 4 speed gromet is ~1/2" to 9/16"..
  
  im pretty sure thats where the gromet comes from tho. im still on the lookout for one, i know i have like 6 or 7 floating around..
  
  EDIT: yea, you did the same thing i did.. mk2 trans bolted up to mk1 clutch parts. use the thrust plate from the jetta maybe, see if it works.. the diesel should have a 200mm clutch setup, i would upgrade to the 210mm setup the jetta had.
• #2 by motomike33y on 07 Oct, 2010 09:44
• I'll check the plate.  I hadn't even gotten to grommet issues, I was just moving the arm on the tranny to make sure things worked, and they didn't.
• #3 by motomike33y on 07 Oct, 2010 10:05
• On your Mk 2, was there a 6 hole spacer behind the assembly, next to the crank end?  The rabbit has one that goes toward the clutch assembly, called a lock plate, and I got thinking that the jetta one may have been behind the assembly.  Wasn't paying enough attention as  I was taking the two apart about 3 months ago.
• #4 by wolf_walker on 08 Oct, 2010 15:35
• Don't feel too bad, I've replaced probly half a dozen clutches and swaped as many trans in these things over the last ten years and change, and I still managed to do something screwy on my last time.  I put an A2 jetta diesel trans in my 81 pickup, and I have very short clutch travel, the pedal sits low.  It works fine for now but I suspect as it wears it will be an issue.  At the rate a NA clutch wears I elected to just leave it be though.
  I'm still not sure what I did, all the parts between the two 5 speeds looked the same(rabbit was not stock), and I drove the jetta before pulling the motor/trans and it was fine.  Go figure.
  
  
• #5 by motomike33y on 09 Oct, 2010 15:57
• this one wasn't disengaging the clutch at all, so I took it off and will check things out before I try to put the tranny back on.  fortunately everytthing  is sitting in my garage
• #6 by smutts on 22 Oct, 2010 03:00
• Each end of the push rod also has slightly different ends, and no, I don't know which way round it was supposed to go.
• #7 by motomike33y on 22 Oct, 2010 07:05
• yeah, I noticed that, and was careful to reinsert it the same way, but the length would still be the same.  I'm going to fiddle with it when I get a little time from my vanagon and audi projects.
• #8 by Powered by Spearco on 22 Oct, 2010 08:26
• 4 speed rods are shorter than 5 speed rods.
  When replacing the rod, the round end goes to the throw out bearing and the more pointed end goes to the clutch side.
  When reuseing the same rod as before, most likely both ends will be rounded. The price of the rod is around $20-30 bucks.
  Also the thrust plate center bushing where the rod rests can wear too and make a clutch pedal low.
  Replace both.
• #9 by motomike33y on 22 Oct, 2010 10:41
• I'm getting a different thrust plate to check out.  the rods from the 4 speed rabbit and 5 speed jetta trannies visually appeared to be the same length.  One was rounded down some on the pointed end-but I'll check them when I get the thrust plate to compare.  thanks.
• #10 by wolf_walker on 23 Oct, 2010 11:35
• Quote from: smutts on 22 Oct, 2010 03:00

  Each end of the push rod also has slightly different ends, and no, I don't know which way round it was supposed to go.
  

  
  It's been six months or better, but I bought a new one of these awhile back and could swear both ends were gently rounded.
  I recall noticing it was different than the old one and chalking it up to wear on the old rod.
  
  
• #11 by Powered by Spearco on 24 Oct, 2010 21:51
• The 4spd rod is shorter than the 5spd rod because of the added length of the 5th gear housing. Does that make sence?
  The ends of a new rod will have a nice round end that goes to the TO bearing and the less rounded cone shaped end goes to the thrust plate. Its going to get more rounded by pushing against the dry thrust plate.
• #12 by theman53 on 25 Oct, 2010 05:16
• ^
  all good info. Brokevw also told me to put a dab of high temp grease on the clutch end of the clutch rod to help it not want to drill. I used the silicone brake stuff that lubes the sliders.
• #13 by Powered by Spearco on 25 Oct, 2010 21:26
• Yep, that will work.
  On a side note. A 200mm FW can be installed in one or the other locating holes. If you remove one of the locateing dowl's.
  It wasn't funn to time  .
• #14 by motomike33y on 27 Oct, 2010 08:21
• pulled both rods out last nite, one was rounded on both ends, and was a little longer than the other which was rounded on one end and appeared more conical on the other-but it was worn down so it was shorter than the first.  looked at both thrust plates, and one that didn't have center rotating was indented /worn more than the other which had replaceable center piece that would turn.  I'll try putting it together with the less worn rod and thrust plate and see if it works.  If not, then my next step is to get a replacement rod for the 5 speed and see if it is longer and conical on one end.