Inlet Manifold - 1*2

[Thornesy]

Hello!

How easy is it to change the complete inlet manifold? Do any gaskets need replacing once it has been removed?

Reason I ask is i'm looking to tidy up my engine bay with new hoses etc, and wish to buy a new inlet manifold and spray it all black...

Any advice would appreciated!!

Thanks, Mark

 

[Andyman]

Take it your meaning the plenum, the bit on the top of the engine with Renault Sport written on it??

Inlet is the 90 degree bend between head and plenum


Plenum, 2 10 mm bolts at the back of the engine, row of 10mm's at the front. unplug the sensors, breather and TB / TB cable as required. Very easy job

Mines been off about 6 or 7 times in the cars life and only once needed to change the inlet to plenum gasket so no you dont need to BUT potentially might need to

Just have some sealer handy

 

[davebem]

The plenum is often reffered to as the inlet, the inlet is the bit it bolts onto that has the fuel rail on it.

As above the inlet, to plenum gasket is worth changing, its not too pricey from renault. If its a 172mk1 the gasket between the throttle and the plenum falls apart, again this isnt expensive.

 

[osbid172]

Good VFM gasket upgrade

http://www.cliosport.net/forum/showthread.php?t=344504

 

[Thornesy]

Yes the plenum is what i'm talking about.. I'd like to clean strip mine off, clean it up and spray it matt black and tidy engine bay

I saw a 182 "Inlet Manifold" (Plenum) which i was thinking of buying to spray black instead of my original part (so i can keep the car standard when i sell it).. I guess it should fit the 172 ph2?

Thanks for your advice

 

[Andyman]

Pretty sure its different

 

[mattjk]

Yep it is

 

[Thornesy]

Ok - will keep my eyes peeled for a 172 plenum then!

 

[Fred@BTM]

there are 3 different plenhams

mk1 172
mk2 172
and 182

 

[Andyman]

Ph1 and ph2 172 ones im 98% sure are interchangeable.

182 one isnt compatable mainly due to no rocker breather on the underside

 

[Russ.]

Ph1 and ph2 172 ones im 98% sure are interchangeable.

182 one isnt compatable mainly due to no rocker breather on the underside

ph1 is cable throttle but ph2 is fly by wire? Doesnt sound right that theyre compatible to me

 

[Andyman]

ph1 is cable throttle but ph2 is fly by wire? Doesnt sound right that theyre compatible to me

Makes no odds on that front as the TB's are all the same fit cable or fly by.

Only differences i think are the breather set ups. Do ph2s run the ICV the same?

Im sure im running a ph2 set up. They got a bit mixed up when modding and then polishing so might not be

 

[sideways danny]

Makes no odds on that front as the TB's are all the same fit cable or fly by.

Only differences i think are the breather set ups. Do ph2s run the ICV the same?

Im sure im running a ph2 set up. They got a bit mixed up when modding and then polishing so might not be

incorrect. they have different bolt patterns for the throttle body

 

[Christopher]

^^ Was just going to say!

 

[sideways danny]

oh and just noticed, only ph1 runs the idle control valve, ph2 and 182 is done by the FBW throttle

 

[Andyman]

incorrect. they have different bolt patterns for the throttle body

Come to think of it your right. From distant memory 2 of the holes line up so the other 2 would need to be taped.
Easy enough job at a push although the lack of ICV would be more of a prob. Could drill the mounting area as its just blanked off out but could be tricky getting the fit for the recess for the ICV o-ring