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saffa 46 Profile
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Date Registered: 05-2021
Location: South Africa
TOTAL POSTS: 6
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Gearbox issues


Hi guys.. greetings from South Africa.

I did do a search but couldn't find anything on the topic.

so here goes. I recently bought my wife a T30 2.0 petrol with a manual box.212000kms on the clock. car is well maintained so no mechanical issues.... till now. It seems that early morning the exy struggles to go into second gear for the first few kms. then i assume the oil is warmed up and thinner and then it has no issues for the rest of the day. could it be that i just need to change gearbox oil? I've noticed that if you pump the clutch a bit it does go into second easier. but no need to pump after a short drive. Should i just change the oil and then just for the sake of it, change the clutch fluid as well?

or could it be the start of gearbox issues?

---
07' Nissan NP300 4x4 185000 kms
7' Nissan X-trail 4x2 212000 kms
1/Jun/2021, 5:39 pm Link to this post Send Email PM   Send Private Message Blog
 
Revhead Kev Profile
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Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 6355
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Re: Gearbox issues


Many different vehicle makes with manual transmissions have some trouble shifting into a gear when cold. It's both due to thick oil until warmed combined with a cable shift mechanism which may not exert as much force as a hard mechanical shift mechanism.

Try letting the transmission idle for a few minutes in neutral after being parked overnight before moving off to see if that helps shifting.

By all means, flush and change the oil in the transmission as it won't harm anything and it is relatively cheap and easy to do so that one possible cause can be eliminated.

---
Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
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1/Jun/2021, 9:22 pm Link to this post Send Email PM   Send Private Message Blog
 
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Date Registered: 05-2017
TOTAL POSTS: 103
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Re: Gearbox issues, some ideas


Maybe the clutch is running short, making it difficult for the box to sync or select second.

If not the clutch wearing out, the clutch actuation mechanism wearing, or the clutch master cylinder not providing enough pressure (worn cylinder seals), or the slave cylinder seals, there are things in the gearbox that can cause it, like worn selector forks, worn syncros, but these usually don't cause trouble unless abused until they've done 1M miles.

I'd suspect the clutch first, master and slave cylinders second. You can easily drain the clutch fluid and refresh it with new stuff just in case it helps the seals or has never been changed.

---
05 T30 ST-X Auto
205/75x16 A/Ts on 6.5" ET40
200k: Refreshed suspension,fuel, ignition & cooling systems
Often good & dirty as is lifted 35mm on Sachs Automatics & poly bushings
Northern Sydney, NSW
2/Jun/2021, 5:46 pm Link to this post Send Email PM   Send Private Message Blog
 


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