mrkieran23 Posted June 20, 2015 Share Posted June 20, 2015 Hey guys, So my 54 plate Zed is knocking at the front... ( i know, could be anything ) looking for tips or secrets lol I have checked everything under there for movement and had a mechanic look over it too and we cannot find anything suspicious, It has had a front banana arm i think its called replaced and you can see the bush is sitting middle, had the pri bar in both ends to check for movement, admittedly both sides i can make move a Tad but i imagine that was normal, even the new one has a slight move to it when pushing hard. The knock is when going over unstable ground and is irritating. Any clues on what i should check? checked the lower arms, drop links, top mounts, wheels etc... Could do with some fresh checks lol Quote Link to comment Share on other sites More sharing options...
ATTAK Z Posted June 20, 2015 Share Posted June 20, 2015 the other banana bar ? 2 Quote Link to comment Share on other sites More sharing options...
mrkieran23 Posted June 20, 2015 Author Share Posted June 20, 2015 it hasent been replaced but it appears to be fine, no movement, just a wobble when a pri bar is used as with the other side, bush looks fine and sat middle. I want to avoid the guessing game on replacing parts lol Quote Link to comment Share on other sites More sharing options...
djtimo Posted June 20, 2015 Share Posted June 20, 2015 The large brace can work lose at the sills and cause knocking. Check all bolts. Quote Link to comment Share on other sites More sharing options...
buster Posted June 20, 2015 Share Posted June 20, 2015 just a thought.......Chris and i replaced my entire suspension pending our Nurembergring trip. Recently and since doing the work ie replacing anti roll s drop links etc i got a knock over rough ground.found the fault to be in the drop link.....worth a check Quote Link to comment Share on other sites More sharing options...
sharkmatt Posted June 21, 2015 Share Posted June 21, 2015 Everything I've read suggests that the banana arm can appear to show no play to the naked eye but still be shot. It's pretty much impossible to replicate the force created by 1.5 tonnes of metal crashing over a bump. If the noise is the same side as the old banana arm, my guess would be it's that. This thread - http://www.350z-uk.com/topic/62289-problem-solvedmystery-remains-banana-arm/ pretty much says the same thing. 1 Quote Link to comment Share on other sites More sharing options...
martybhoy Posted June 21, 2015 Share Posted June 21, 2015 (edited) Could still be a banana arm. I had the same issue shortly after getting my car and when the guys at infiniti replaced them with my new nissan ones they found the damaged parts were replicas. Obviously the aftermarket ones weren't the same quality and had given out very quickly. my car had 83k miles at the time so if the originals lasted 60-70k miles then the aftermarkets barely lasted. Edited June 21, 2015 by martybhoy Quote Link to comment Share on other sites More sharing options...
redzed8 Posted June 21, 2015 Share Posted June 21, 2015 I had this issue couldn't find movement on any end until i removed the arm . There was a small amount of play in the ball joint so i replaced the whole arm. This is what i found when i removed the dust cover of the old knackered arm. Sounded exactly like this when it was on the car too. hope this helps. Quote Link to comment Share on other sites More sharing options...
mrkieran23 Posted June 22, 2015 Author Share Posted June 22, 2015 Balls lol my thoughts were along these lines.... The garage that put the arm on said in a passing comment that the arm cost £180 from the main dealer. Now am i right to assume that it would be much more than this from Nissan? And can anybody advise on a reputable place to purchase one or am i best looking at one from Nissan? Quote Link to comment Share on other sites More sharing options...
Stutopia Posted June 22, 2015 Share Posted June 22, 2015 Got mine from Ewen, proper Nissan. 1 Quote Link to comment Share on other sites More sharing options...
sharkmatt Posted June 22, 2015 Share Posted June 22, 2015 Balls lol my thoughts were along these lines.... The garage that put the arm on said in a passing comment that the arm cost £180 from the main dealer. Now am i right to assume that it would be much more than this from Nissan? And can anybody advise on a reputable place to purchase one or am i best looking at one from Nissan? I think the obligatory response in this case is Quote Link to comment Share on other sites More sharing options...
mrkieran23 Posted June 22, 2015 Author Share Posted June 22, 2015 how many people am i to PM ha I'll pm this chap too then Quote Link to comment Share on other sites More sharing options...
Stutopia Posted June 22, 2015 Share Posted June 22, 2015 They're both top traders so worth trying both and seeing your options. Quote Link to comment Share on other sites More sharing options...
Ewen@Clark Motorsport Posted June 22, 2015 Share Posted June 22, 2015 Its worth pointing out that Zman no longer supplies new parts we took that over from him sometime ago but he can still help with used Quote Link to comment Share on other sites More sharing options...
chrisday1990 Posted June 24, 2015 Share Posted June 24, 2015 yes i have looked at getting aftermarket ones but i am unsure of quality... i need them done as well... you see the problem with finding the problem on the ramp is the ball joint rattle can only be made with 2 toes of road car jerking on a bump road to make the noise so the pry bar is not going to find much. Quote Link to comment Share on other sites More sharing options...
daveyjm69 Posted June 25, 2015 Share Posted June 25, 2015 Had same problem on drivers side changed banana arm still there drop link on passenger side was the problem so changed both good luck Quote Link to comment Share on other sites More sharing options...
iamtheoneneo Posted June 25, 2015 Share Posted June 25, 2015 Have the same problem. Will change the banana arms but is it the whole arm or can I buy the bushes ( I see CM have them) providing my garage has a press? Its basically £500 verses £60. Quote Link to comment Share on other sites More sharing options...
sharkmatt Posted June 25, 2015 Share Posted June 25, 2015 You can change the bushes but not the balljoint I think so depends what's gone. Quote Link to comment Share on other sites More sharing options...
mrkieran23 Posted July 18, 2015 Author Share Posted July 18, 2015 All knocks now gone Replaced both drop links at the front and now no more knocks. Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted July 18, 2015 Share Posted July 18, 2015 All knocks now gone Replaced both drop links at the front and now no more knocks. Glad to hear that you are all sorted and knock free. Quote Link to comment Share on other sites More sharing options...
djb55 Posted July 19, 2015 Share Posted July 19, 2015 Had exactly the same problem couple of weeks back had a garage check the compression arms (banana arms) up in the air on a ramp and could not get any play in either. Following advice on here I purchased 2 from ZMANALEX with new cones and bushes, had them fitted by TDI North in Warrington all absolutely perfect now Quote Link to comment Share on other sites More sharing options...
chrisday1990 Posted July 19, 2015 Share Posted July 19, 2015 Yea it's also hard to tel what side it's from so I'm getting both done at the cost of £700 ouch. It then needs the Lazer thingy alignment stuff done í ½í¸ ouch. Will the car handle better once done? Quote Link to comment Share on other sites More sharing options...
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