yet another Knocking thread!

[Jimmi172]

it happens in first a secound at high revs ever since i had the cat replaced, is it possable that it may not be aligned or tightened propperly or could it just be the engine mounts have gone now as i have read in the countless other knocking threads. I forgot to mention i have a mk2 ph1 172

 

[ben_p]

my guide

for phs1


jack the car up and secure it.
drop the front bolt of the new dog bone mount. (engine side)
see the black bracket attached to the gear box?
slacken the top bolt to finger tight its 13mm
then using a screwdriver or something to pivet the bottom of the black bracket forward to wards the front of the car (so the top of it leans to the back of the car)
it will only move 5mm or so should look like this \ lol.. keep pushing hard and tighten up the top nut nice and tight.
now with some force or a friend to bar the engine so you can line up the dog bone mount then re bolt that up.

then do this

remove the engine cover.
undo the 4 bolts on the left hand mount
get a bar(big one)
jam it behind the back of the mount and rest it against the strut piller
****mind the AC pipes**** do not rest it against them
push the bar towars the rear of the car (moving the engine forward as far as it will possibly go)
nip all four bolts up nice and tight

 

[_Alex_D_]

my guide

for phs1


jack the car up and secure it.
drop the front bolt of the new dog bone mount. (engine side)
see the black bracket attached to the gear box?
slacken the top bolt to finger tight its 13mm
then using a screwdriver or something to pivet the bottom of the black bracket forward to wards the front of the car (so the top of it leans to the back of the car)
it will only move 5mm or so should look like this \ lol.. keep pushing hard and tighten up the top nut nice and tight.
now with some force or a friend to bar the engine so you can line up the dog bone mount then re bolt that up.

I tried to to do this and it didn't move. Took bolt out and hole was round. Couldn't understand how it would move? Any one?

 

[davebem]

Have a look at the mount in this pic, ideally you dont want a gap beteen the rubber and the black bracket (where the arrow is). You want the gap on the front side of the mount as in this pic. Follow Bens guide, if your still getting knocking one or more of the mounts is badly worn.

 

[Fred@BTM]

i sure renault spent a few million designing the engine mounts the way they are for a reason (ok maybe they should've spent a few million more) but hey you bought a cheap french tin can, what do you expect!