3rd gear crunches when down shifting

Re: (Matts_SW20)

Sat, 15 Apr 2017 10:21:57 GMT

Having too firm a clutch can be a sign of a faulty slave/master so don't assume it's all perfect. Like the others have said, give the clutch a bleed. It's a difficult job but I have a write up in the how-to section that seems to work for me.

Also change the gearbox fluid, MT-90 is used by most of the members here and is a GL4 oil. Always undo the fill bolt on the box before draining the fluid to make sure it's not seized and you'll be sweet.

Re: (stuka)

Thu, 13 Apr 2017 19:15:14 GMT

only put GL4 oil in that box

Re: (Sw2091)

Wed, 12 Apr 2017 19:22:53 GMT

It's really firm

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Re: (5SGTE)

Wed, 12 Apr 2017 15:58:30 GMT

What do you mean by stiff? There should be constant resistance as you push on the pedal.

Re: (Sw2091)

Wed, 12 Apr 2017 11:13:50 GMT

Cheers. Also the cluch pedal is very stiff could that indicate anything aswell

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Re: (5SGTE)

Wed, 12 Apr 2017 10:53:06 GMT

Sounds more lubrication related if the function changes between cold and warm.

I'd change fluids and bleed the clutch. Both easy to do and will help either identify or rule out options.

Re: (Sw2091)

Wed, 12 Apr 2017 10:49:18 GMT

Edit. The resistance dissappears as the car gets warm and then it starts to shift smoothly could this be cluch related

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Re: 3rd gear crunches when down shifting (artymr2)

Sat, 08 Apr 2017 00:13:35 GMT

Try ATF in the box, can often work depending how bad synchros are. As above first check clutch is disengaging fully.

Cheers

Re: 3rd gear crunches when down shifting (stuka)

Wed, 05 Apr 2017 12:05:02 GMT

do the simple stuff first before you even think about a gebox rebuild- check all the bearings etc at each end of the shifter cables (deltav do a kit), there are lots of posts on this topic if you search the forums. tired engine/gearbox mounts can also attribute to shifting issues

Re: 3rd gear crunches when down shifting (5SGTE)

Sat, 01 Apr 2017 11:45:06 GMT

That and a clutch fluid and bleed won't hurt.

Re: 3rd gear crunches when down shifting (Shaz)

Sat, 01 Apr 2017 09:41:30 GMT

The cheaper option if you don't want to spend $$$ now is the double clutch, rev match thing. I taught myself how to. It just becomes 2nd nature after a little while. Also I found having gear oil changed to MT90 helped too.

Re: 3rd gear crunches when down shifting (Guest)

Sat, 01 Apr 2017 01:08:15 GMT

Syncro is often the issue on a 20+ year old gearbox. Rebuild $$$$zzzz

3rd gear crunches when down shifting (Sw2091)

Fri, 31 Mar 2017 13:22:06 GMT

Need some help as to what this could be and what I'll need to do to fix it. Cheers

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