ZX TD Knocking

bigpete · Post by **bigpete** » 13 May 2004, 16:19

Morning all. I've been knocking around these forums for while now soaking up all of the good advice. It's now time for me to put my toe in the water and post! I'm having a little trouble with a knocking soundon my ZX TD. The best way (not that I like doing it!) to make it knock is have the car rolling along in first and then blipping the throttle.
I've had a guick shake of the front wheels while on the ground, looked underneath, but nothing obvious. So I'm gonna get the jack out and have a good shake of suspension, drive shafts and the like. Is there anything I should be looking out for or can do to identify a problem. Thanks for any help/advice in advance.
Pete

batwad · Post by **batwad** » 13 May 2004, 22:35

Does it also make the noise when you tap the brake while rolling slowly? I had a similar noise which turned out to be worn suspension bushes; mine were so bad there was quite a bit of play in the n/s/f wheel.

bigpete · Post by **bigpete** » 14 May 2004, 19:28

Nope, nothing under braking. I have a sneaking suspicion that it's an engine mount. Might be a bit of a random question but does any one have an idea how long an average engine mount lasts.
Pete

jeremy · Post by **jeremy** » 14 May 2004, 21:10

Top one by cambelt was replaced when I got the car and had failed after about 17 000 miles - I've just replaced the bottom one which was severly worn and while its tightened the engine and made it less prone to jumping around if the car is stalled - it hasn't made any difference to noises. Incidentally I never really noticed any difference with the top one either.
Jeremy

aido · Post by **aido** » 15 May 2004, 04:50

ayup guys,new guy here,ive got a zx volcane td and just recently ive had a real bad knocking noise.It was that bad it sounded like something was going to fall off underneath the car. after much frustration i found out the problem,it was the o/s drop link, the top thread where it goes through the hole on the plate which is connected to the strut had worn the hole elongated and so the thread was moving about when going over even the slightest road imperfection causing the bad knocking noise. i wrapped some tape around the thread to reduce the clearance and fitted a new nyloc nut and that sorted the problem out to my relief. just shows, noises can appear worse than they really are.