Results 1 to 4 of 4

Thread: First gear stubborn

  1. #1

    First gear stubborn

    Anyone else have a stubborn first gear?

    It doesn’t slot in nearly as nice as all the other gears; I’m assuming my synchro is unhappy. Is there a way (like a kit or something) to fix the first gear syncro? Reverse is also a bit stubborn.

    Alternatively I could put some liqui-moly additive in the gearbox.

    [edit]

    It looks like the ZHP came with the ZF S6-37 transmission. Searching yields some rebuild kits, but they’re not specific to this transmission, and I only need the 1st gear synchro, maybe the 2nd gear, and maybe reverse.

  2. #2
    Join Date
    Jan 1970
    Location
    Branford, CT
    Posts
    15,645
    If your synchro was bad, it would be grinding.

    Change your transmission fluid. Redline D4 ATF is known to help with smoother gear engagement especially in cold weather.

    Sent from my Pixel 3 using Tapatalk
    BP
    2005 330i ZHP / 6MT
    Imolarot / Naturbraun



    It's not the car you drive, it's how you drive it.

  3. #3
    Quote Originally Posted by az3579 View Post
    If your synchro was bad, it would be grinding.

    Change your transmission fluid. Redline D4 ATF is known to help with smoother gear engagement especially in cold weather.

    Sent from my Pixel 3 using Tapatalk
    I changed it only ~50k miles ago, and I think I used Redline D4 ATF.
    I’m thinking putting in some of this stuff

  4. #4
    Join Date
    Jan 1970
    Location
    Branford, CT
    Posts
    15,645
    Quote Originally Posted by Fried_Chicken View Post
    I changed it only ~50k miles ago, and I think I used Redline D4 ATF.
    Iím thinking putting in some of this stuff
    50k - so you're almost due anyway. Changing it should still help at this point.


    Sent from my Pixel 3 using Tapatalk
    BP
    2005 330i ZHP / 6MT
    Imolarot / Naturbraun



    It's not the car you drive, it's how you drive it.

Similar Threads

  1. What's your favorite gear in your ZHP? Why?
    By quikryptonite in forum General -- ZHP Related
    Replies: 91
    Last Post: 01-31-2017, 10:19 AM
  2. Stubborn FCABs won't come off - suggestions?
    By AtomicZHP in forum Mechanical | Troubleshooting
    Replies: 8
    Last Post: 03-21-2013, 06:02 PM
  3. Our Little Gear Heads
    By NC_ZHP in forum ZHP Gallery and Video Section
    Replies: 3
    Last Post: 08-03-2012, 06:37 AM
  4. Gear oil mix?
    By Alphatek45 in forum General -- ZHP Related
    Replies: 10
    Last Post: 06-05-2011, 01:14 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •