kershaw-350z Posted April 30, 2013 Share Posted April 30, 2013 i drive a 2008 hr engin 350z its just done 40000 miles and i am just about to replace the flywheel and clutch because of problems ive been having but also i have noticed 90% of the time when i change from 1st to 2nd gear i get a clicking/clunking metal on metal noise but it isnt realy that loud but i does happen almost every time now and is getting quite concerning but i can select 2nd smoothly if i change down from 3rd to second its fine nice and smooth and lovley also if i go from 1st threw to second but threw neutral it all smooth as well.. any ideas on what this could be? could it just be a selector problem or do you guys recon i may need a new box? if so what sort of price is a new box? or could it be somthing simple that can be rectified when i have the box off to do my clutch and fly? Many thanx Alex Quote Link to comment Share on other sites More sharing options...
spursmaddave Posted April 30, 2013 Share Posted April 30, 2013 You could try some gearbox oil additive, molyslip is the usual choice, worth a try Quote Link to comment Share on other sites More sharing options...
rabbitstew Posted April 30, 2013 Share Posted April 30, 2013 I had a 2007 HR and the only problems i ever had was it was slightly stiff from 1st to 2nd or even from 3rd to 2nd when it was cold. Outside of that it was perfectly fine. Mine had 40k on it, on original clutch etc. Quote Link to comment Share on other sites More sharing options...
Paddy78 Posted April 30, 2013 Share Posted April 30, 2013 i drive a 2008 hr engin 350z its just done 40000 miles and i am just about to replace the flywheel and clutch because of problems ive been having but also i have noticed 90% of the time when i change from 1st to 2nd gear i get a clicking/clunking metal on metal noise but it isnt realy that loud but i does happen almost every time now and is getting quite concerning but i can select 2nd smoothly if i change down from 3rd to second its fine nice and smooth and lovley also if i go from 1st threw to second but threw neutral it all smooth as well.. any ideas on what this could be? could it just be a selector problem or do you guys recon i may need a new box? if so what sort of price is a new box? or could it be somthing simple that can be rectified when i have the box off to do my clutch and fly? Many thanx Alex Crunching / Clicking from 1st to 2nd is pretty normal as far as I'm aware. It's a fairly noisy transmission, but a gearbox oil change with some molyslip may help? for these. I highly doubt it will be a gearbox issue (Or that you will notice any difference with a new clutch). It could be something to do with the synchro's, but you'd be much more likely to be getting problems in other gears... 5th I believe is usually a problem with Zeds. These are based on other threads and opinions that I have read. Quote Link to comment Share on other sites More sharing options...
RobPhoboS Posted April 30, 2013 Share Posted April 30, 2013 Use the search function, this comes up a LOT Go slow from 1st to 2nd. ie: 1st - N - 2nd - don't just ram it into 2nd basically, especially from cold - put genuine nissan g'box oil in there and maybe as suggested molyslip. I also have to take care going from 6th to 5th sometimes. Quote Link to comment Share on other sites More sharing options...
Pnthrblkzs Posted April 30, 2013 Share Posted April 30, 2013 Use the search function, this comes up a LOT Go slow from 1st to 2nd. ie: 1st - N - 2nd - don't just ram it into 2nd basically, especially from cold - put genuine nissan g'box oil in there and maybe as suggested molyslip. I also have to take care going from 6th to 5th sometimes. I'm the same, 1st to 2nd improves when the car is warm though. Quote Link to comment Share on other sites More sharing options...
MartynB85 Posted April 30, 2013 Share Posted April 30, 2013 Same thing here too, it sounds like a gear linkage noise to me. I looked into it for quite a while, seems its very common and nothing to worry about. Quote Link to comment Share on other sites More sharing options...
Seabee Posted April 30, 2013 Share Posted April 30, 2013 I have a 2007 HR and when cold it always has flywheel chatter (goes away when clutch is pressed) and 1st to 2nd is always stick and will crunch if forced when car is cold, just be gentle until its warm Quote Link to comment Share on other sites More sharing options...
cs2000 Posted April 30, 2013 Share Posted April 30, 2013 Yep I have it too. Seems like the whole drivetrain in there is fairly poorly designed If you were considering a new box, you would be looking at around £900 all in including you paying to get it fitted at a garage and getting the box from one of our friendly traders. Quote Link to comment Share on other sites More sharing options...
tony.r123 Posted April 30, 2013 Share Posted April 30, 2013 Use the search function, this comes up a LOT Go slow from 1st to 2nd. ie: 1st - N - 2nd - don't just ram it into 2nd basically, especially from cold - put genuine nissan g'box oil in there and maybe as suggested molyslip. I also have to take care going from 6th to 5th sometimes. I'm the same, 1st to 2nd improves when the car is warm though. +1 i get this too from cold especially if i haven't used her for a while, fine once warm Quote Link to comment Share on other sites More sharing options...
Tinyflier Posted April 30, 2013 Share Posted April 30, 2013 Mine does the same and it is the main reason why these cars never seem particularily quick through the lower gears (even after an Uprev and Miltek and Berks HFCs). David Quote Link to comment Share on other sites More sharing options...
kershaw-350z Posted May 1, 2013 Author Share Posted May 1, 2013 (edited) sorry did try and search the forum but couldnt realy find anything manily to do with 5th gear problems ...so it seams i have nothing to worrie about well that has put my mind to rest a little bit i have just had the p3 service done but when i get my clutch and fly done i will get them to put in some genuine nissan oil and some addative for me because i when i had the service done i doubt they used genuine nissan stuff because i had it done at my local garage (never take my car to the stealers anymore their all monkeys) just means zmanalex is going to love me now got quite a big order now thanks for the help guys Edited May 1, 2013 by kershaw-350z Quote Link to comment Share on other sites More sharing options...
bamdc2 Posted May 2, 2013 Share Posted May 2, 2013 Around town you have to nurse 1st to 2nd as it doesnt like it that much at low rpm's. If its doing it at all rpms then get some molyslip its really good stuff. Think its just one of those things as my old Integra was exactly the same around town. Quote Link to comment Share on other sites More sharing options...
MartynB85 Posted May 2, 2013 Share Posted May 2, 2013 It doesn't help that the syncro's are made of cheese Quote Link to comment Share on other sites More sharing options...
AMT Posted May 2, 2013 Share Posted May 2, 2013 Depending on other issues mind you but 1st - 2nd gear is always a bit...rough, especially when cold. Always take care with it when setting off. And even after a while, be confident but not firm so it goes straight in, if you hesitate or are unsure...its knows... its like a dog and fear... 2 Quote Link to comment Share on other sites More sharing options...
Toon Chris Posted May 2, 2013 Share Posted May 2, 2013 (edited) sorry did try and search the forum but couldnt realy find anything manily to do with 5th gear problems ...so it seams i have nothing to worrie about well that has put my mind to rest a little bit i have just had the p3 service done but when i get my clutch and fly done i will get them to put in some genuine nissan oil and some addative for me because i when i had the service done i doubt they used genuine nissan stuff because i had it done at my local garage (never take my car to the stealers anymore their all monkeys) just means zmanalex is going to love me now got quite a big order now thanks for the help guys I'm not sure from this if you are saying the gearbox oil was changed or not, but if it was and it wasn't genuine Nissan oil you will get all sorts of horrid noises - no matter how good you think the replacement oil is, it just doesn't work like the Nissan oil. Edited May 2, 2013 by Toon Chris Quote Link to comment Share on other sites More sharing options...
kershaw-350z Posted May 3, 2013 Author Share Posted May 3, 2013 the oil was changed but not for genuine nissan stuf but i will change it again next week when i do my clutch and fly thanks for the heads up guys Quote Link to comment Share on other sites More sharing options...
ianboom Posted March 6, 2014 Share Posted March 6, 2014 (edited) Around town you have to nurse 1st to 2nd as it doesnt like it that much at low rpm's. If its doing it at all rpms then get some molyslip its really good stuff. Think its just one of those things as my old Integra was exactly the same around town. I changed my oil and it didn't make much difference. As above, i reckon mine's better 1st to 2nd when you rev it, only really noticed today, so will have a play tomorrow. Went out for a beer last week with a mate who's a transmission engineer for land rover. I explained to him about the zed box, and he said oh yeah, we had a similar problem with a box we were developing, no matter what oil they used it was the same, crunch first to second. he reckoned the synchro rings were the wrong material and they slipped too much so the gears didn't match speeds correctly. Wish i'd left the molyslip out of mine and driven it for a few days. Edited March 6, 2014 by ianboom Quote Link to comment Share on other sites More sharing options...
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