hi ive just cleaned out the throttle bodies and induction kit and disconnected negative from battery now ive just started it and there is a loud knocking noise coming from the top of the engine please help i dont wanna be zed less :confused:

hi ive just cleaned out the throttle bodies and induction kit and disconnected negative from battery now ive just started it and there is a loud knocking noise coming from the top of the engine please help i dont wanna be zed less :confused:

tell me you can still see the toothbrush :confused:

haha yeah thats in the bin now put everything back together now the noise gets faster with the revs gettin faster

haha yeah thats in the bin now put everything back together now the noise gets faster with the revs gettin faster

is it crank speed or cam speed (cam being 50% slower)

crank speed it gets louder as the revs build sounds a bit like spowky dokes on a bike wheel

just lack of oil up top, mine used to do it after being stood for a couple of weeks

just had a service 6 weeks ago by thor racin could it be tapets

just had a service 6 weeks ago by thor racin could it be tapets

am i right in believing the noise developed after you cleaned throttle bodies :confused:

just had a service 6 weeks ago by thor racin could it be tapets

300's dont have tappets as there is no rockers, they use hydraulic lifters, it is most probably a stuck lifter causing the raquet.

 

try a small cup of atf fluid in the engine leave running for 1/2 an hour then replace oil and filter with new items, normally works.

 

how many cans of carb cleaner did you use to clean the throttles :x:

yeah it did but the reason i cleaned them was because the revs kept on going up and down they average around 1000rpm and go up to 2k thats on idle but after i cleaned them the noise came do you still have the nose piece znutt

i used 1 whole can and cleaned with a clean toothbrush the noise sounds like its comin from there area

yeah it did but the reason i cleaned them was because the revs kept on going up and down they average around 1000rpm and go up to 2k thats on idle but after i cleaned them the noise came do you still have the nose piece znutt

yep

Its all very well telling him to run his engine for half an hour with ATF in the oil to unstick a hydraulic tappet, but if it is something else more serious he has just added a load more damage, maybe.

Its all very well telling him to run his engine for half an hour with ATF in the oil to unstick a hydraulic tappet, but if it is something else more serious he has just added a load more damage, maybe.

 

If its something more serious the damage is already done fella ;)

yeah it did but the reason i cleaned them was because the revs kept on going up and down they average around 1000rpm and go up to 2k thats on idle but after i cleaned them the noise came do you still have the nose piece znutt

your problem could well be the water temp/ecu sender connector plug(one with the yellow cap) give the terminals a good clean to remove any verdigis.Hope this works for ya.

Its all very well telling him to run his engine for half an hour with ATF in the oil to unstick a hydraulic tappet, but if it is something else more serious he has just added a load more damage, maybe.

 

maybe this maybe that, the whole fun of guess work my friend

 

if its a topend noise as described then i doubt very much any severe damage is present! other than a common sticky lifter! what do i know :rofl:

thanks for the replies i took it to a garage near me called guglielmi they said sounds like cam belt problem or ac pulley or oil temp sensor they also said i have boost leaks anyway its booked in tuesday there gona do a full check on it and in the meantime i need to find some boost pipes :headvswal

thanks for the replies i took it to a garage near me called guglielmi they said sounds like cam belt problem or ac pulley or oil temp sensor they also said i have boost leaks anyway its booked in tuesday there gona do a full check on it and in the meantime i need to find some boost pipes :headvswal

cambelt problem? i hope not otherwise your car wouldnt start and the valves would be in bits

 

oil temp sensor? that wouldnt cause a rattle as there is no oil temp sensor :rofl: only oil pressure

 

hope it works out ok bud

yeah me to i love drivin my zed do you know where the best place to get some boost pipes from cheers

yeah me to i love drivin my zed do you know where the best place to get some boost pipes from cheers

 

ask in the for sale section matey, new from nissan there around £40 each of something daft like that

 

you could try ricerocket in the traders section he normally breaks a few z's

 

greg

From the reply from the the garage I am not sure they know their elboe from their ankle.

From the reply from the the garage I am not sure they know their elboe from their ankle.

 

precisely