182 manifold on 172 touches the antiroll bar

Gardus · Mar 14, 2010

Yesterday I went to my friend's garage to see if the car was ready, one of the jobs was to fit the 182 manifold (on a my02 172).

The manifold scrubs against the front anti roll bar...

I've seen that some of the manifold on sale here have a "dint" in the exactly same place where it scrubs on mine, is it normal, maybe an afterthought by renault? Or is there any other way to not make it touch?

We're thinking to replicate the "dint" getting it red hot and bending it a bit with a clamp or something...

Thanks!

Andyman · Mar 14, 2010

Try shifting your engine further forward on the top mount.

Mine dosent hit and its not got the dent

Gardus · Mar 14, 2010

I've found a few pictures about it:

Andy I fear we could break the mounts!

Andyman · Mar 14, 2010

You wont break the mounts, its just adjusting its seating position so as to sit as far forward as poss (top mount via the 4 bolts)

Gardus · Mar 16, 2010

We tried...no result. And we couldn't bend the manifold...I don't know what to do, how does it fit on the 182, different engine mounts? Different antiroll bar?!

James.f · Mar 16, 2010

Cant you just smack a hammer against it so you do have a dent?

Nickharding · Mar 16, 2010

Ide do exactly what James just said.

Gardus · Mar 16, 2010

I suggested it to my mechanic...He was a bit skeptical. I'm going to the garage in a few minutes, we'll see.

_WILL_ · Mar 16, 2010

I wouldn't hit it with a hammer!
I can't understand why some have dents and some don't?
But is it possible that your engine mounts are a bit worn and if you were to replace them it might solve the problem? Have you tried tilting the engine forward abit like "Andyman" said?

Nickharding · Mar 16, 2010

Well the one with the dent obviously has to miss something, if there wasent a dent it would hit on it, so there for it has a dent, if that makes sence.

Bristow · Mar 16, 2010

James.f said:
Cant you just smack a hammer against it so you do have a dent?

lol.

_WILL_ · Mar 16, 2010

Nickharding said:
Well the one with the dent obviously has to miss something, if there wasent a dent it would hit on it, so there for it has a dent, if that makes sence.

Yeah but I am assuming all 182's are the same so why do some have the dent and some not.

Thinking about it tho, maybe 182 cups/cup packed cars have it because I think they have a thicker anti-role bar?? If that is what the mani is hitting then maybe that explains the reason renault made put the dent in them!

Nickharding · Mar 16, 2010

Could be, im not sure, would make sence though.

Gardus · Mar 16, 2010

My car isn't cup packed, so... He tried to tilt the engine but it wasn't enough, instead of always hitting the bar, it does it only when accelerating hard.

The upper engine mount is new, the low one isn't, but i can't change it for this, then when it worns out a bit it would hit again....

I'm going to try pressing the manifold with a clamp and some shapes.

I hope i'll gain something in terms of torque/power, especially when i will remap it, or all the efforts are useless.

_WILL_ · Mar 16, 2010

Gardus said:
My car isn't cup packed, so... He tried to tilt the engine but it wasn't enough, instead of always hitting the bar, it does it only when accelerating hard.

The upper engine mount is new, the low one isn't, but i can't change it for this, then when it worns out a bit it would hit again....

I'm going to try pressing the manifold with a clamp and some shapes.

I hope i'll gain something in terms of torque/power, especially when i will remap it, or all the efforts are useless.

I was just refering to why they might be diffrent on the 182's, hence why some have dents and some don't, Seems unfortunate that it won't fit. I know what you mean about the engine mount. Would be a pain having to replace it all the time.

Like you said, I hope its worth the hassle!

franx · Mar 16, 2010

When accelerating hard they ALL hit the bar, (always thought it hit the subframe) would'nt worry about it too much ? Design fault , Renault at it's best. Get a Powerflex dogbone mount and it wo'nt be as bad anymore

Gardus · Mar 16, 2010

We've tried to replicate the dent...the manifold is VERY hard, we tried every kind of clamp, we bent it a few mm and scratched the surface a lot. The engine is already tilted as much as it goes.

I've seen the dogbone twisted mount on k-tec, is not very expensive, are you sure it will solve the knocking?

We'll try to bend it a bit more and then mount the bar, we'll se how it goes.

Gardus · Mar 16, 2010

What if i put some foam wrapped in aluminium paper around the bar?

Andyman · Mar 16, 2010

You shouldnt need to mess about with the manifold, knocking dents in it and shoving wrap round.
I got my dent taken out back to round and its fine. Never knocked once and the cars currently on the original dog bone with 120k's under its belt.

The gap is tight yeah but imo you only need some fine adjusting unless the manifold you have is somehow bent ? Was it taken from a written off car?

Do you have pictures of the fit to see what the gap is ?

franx · Mar 16, 2010

When you said it's only hitting on hard accelaration, you're describing a problem ALL the RS's have !! Why do you want to cure a problem you seemingly can't cure completely ?
Mine sounds like a caliber 50 machine gun (worse) when getting wheelspin, no nice feeling/sound

Do'nt worry about it , live to learn with the knocking

ditz · Mar 16, 2010

i reckon your manifold is bent... when the cars are rear ended they tend to bend

should fit fine... not easy but should fit with some adjustment

Nickharding · Mar 16, 2010

Put it in a strong vice and beat the handle with a hammer, job done.

Andyman · Mar 16, 2010

No he'll end up cracking it

Andyman · Mar 16, 2010

franx, they dont all do it mate although agree, very common. Its usually just a sign of worn mounts or dog bone.

Replacement dogbone and re adjusting the mounts should cure it unless its bent

franx · Mar 17, 2010

^^ yeah when i did all my mounts last time round it "cured" it for a while.

Ofcourse a couple of weeks later it all returned

Btw, my manifold (182) is one without the dent too

Gardus · Mar 17, 2010

I'll get the car in the evening with the wrapping around the bar, we'll see how much it'll knock.

Gardus · Mar 19, 2010

It knocks :dead:

I think I'll go for the LOWER ENGINE MOUNT BUSHES from k-tec, we tried with a solid one and it didn't touch but it was too stiff.

franx · Mar 19, 2010

Have you checked if the other lower mount (rubber block) is still okay / in place ? Stops the tilting of the engine so may be your prob.

No.2 in this pic :

http://www.gg-motorsport.homepage.t-online.de/catalog/popup_image.php?pID=158

Pic is of a phase 1, but has the same mount as the ph2

Gardus · Mar 19, 2010

I'm ordering the lower bushes for the dogbone mount and the renault lower mount in that picture, the top mount is almost new.

Gardus · Mar 19, 2010

Which one?

http://www.k-tecracing.com/show_product.asp?id=2471

franx · Mar 19, 2010

the right below one in the K-tec pic , the rubber block

Gardus · Mar 19, 2010

Clio 172/Cup/182 - LOWER FRONT GEARBOX MOUNT - All Clio 172 & 182 models inc Cup versions
Clio 172/Cup/182 - UPRATED TWISTED TYPE LOWER ENGINE MOUNT BUSHES - All Clio 172 & 182 models.

We'll see in a few days the results. To mount the rubber block what do you need to do? How long does it take?

Andyman · Mar 19, 2010

Never heard of anyone having to mess about like this with fitting a 182 mani.

Bet your manifolds bent.

Gardus · Mar 19, 2010

I don't think so, when mounted is perfectly aligned with the engine and the dekat, so it's not bent. I think that with a new (and not a 8 years old) dogbone mount it wouldnt knock.

And if this wasn't an issue renault wouldn't have made the ones with the dent.

Andyman · Mar 19, 2010

Its 100% worth a try

Ash256 · Mar 20, 2010

Wouldnt the dent obstruct the air flow ?

D1CKY · Mar 21, 2010

Ash256 said:
Wouldnt the dent obstruct the air flow ?

+1

franx · Mar 21, 2010

^^ Still , there are a lot of 'em going round .

Gardus · Apr 3, 2010

Thursday we fitted the dogbone purple bushes.
We were in a hurry so we couldn't fit the rubber mont, but I can already tell you that the problem is still there but is WAY less noisy and it doesn't vibrate unless I smash the throttle over 4k rpm in 1st, 2nd and 3rd, in that case I can feel the vibration through the steering wheel bit is more like the vibration of a mobile than a banging of metal against metal.
I guess the manifold comes close to the bar and barely touches it!
I hope it will go away completely with the rubber mount.

On the other side, now that I can drive it fast i can see the 182 manifold is worth it, the car feels faster from 3000 to 5.500 rpm, and is more responsive to the throttle (maybe the bushes have something to do with that too).
I tried some acceleration time and 90-130 in 3rd gear has passed from 5"1 to 4"7-4"8, not bad!

Short videos of said acceleration, before and after fitting the 182 manifold.
http://win.clubminitalia.com/vari/90-130_Gardus_dekat_cropped.avi
http://win.clubminitalia.com/vari/90-130_Gardus_manifold_cropped.avi

franx · Apr 3, 2010

video's come in with just some acceleration sound, no image.. Does'nt sound like much either..

Have you also loosened the two top mounts to pull the engine as far forward as you can/ then retighten ? Could be just the couple of mm needed !

182 manifold on 172 touches the antiroll bar

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