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Hello all.

Lately a problem seems to have popped up in My series 1 260 that when I drop back into fourth to overtake a car or something it grinds like anything. All the other gear changes are fine. And if Im change back while Im slowing for a corner its normally OK but sometimes will still do it.

I've tried double clutching but that didn't really help. I don't think I was really doing it properly though either.

Could it just be low fluid or is my gearbox on the way out?

I haven't checked anything as yet. Thought I'd get some ideas first.

Cheers guys.

Zane.

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https://www.sau.com.au/forums/topic/278201-is-my-gearbox-shagged/
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The first thing I'd have done is get a fluid change, then see how it goes from there. Maybe, once the fluid is removed, it might be worth having a look to see if there are metal shavings or particles present in the oil that may indicate excessive wear and tear.

How handy are you? Personally I would pull the box out and open it up to see what is wrong before the whole thing is expensively damaged. If you are going to try changing the oil do it NOW and look for teeth, particles of metal etc. If it still grinds after the oil change my advice would be to drive it no further til you 've had a look inside.

+1 on the redline: mine was really crunchy into second before I made the switch to redline: I know I'm pretty much due for a new 'box very soon, but has been far more pleasant to use in the meantime

  • 1 month later...
Yep agree on the oil change, try that 1st man. Redline is awesome stuff, effing expensive though.

4th gear synchro going on GTR boxes is relatively common, mine does it sometimes when its cold.

got my cam belt and water pump changed the other day... now im noticing when i go into 4th (cruising speed) i get a little bit of a 'clunk' feeling... and when back to 3rd from 4th. i get a different feeling when i was used too..

maybe something with the gear syncro ? as it only does it when the car is warmed up.. straight from cold, smooth as ever :blush:

Redline it ? :)

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