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Dual Mass Flywheel Do Rs4S's Have Them?

OMY31T

By OMY31T,
in Four Door Family & Wagoneers

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OMY31T Rising Star

OMY31T

Posted
Posted

hey guys i have a s2 rs4s and its knocking/rattling. ive checked it with a stethascope, and the noise is coming from the rear of the engine or bellhousing. i believe these have a dual mass flywheel and this is where the noise is coming from but looking for some clarification from anyone whos pulled a fly wheel out of one.

cheers.

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

Never seen a dual mass flywheel on an RB but then I haven't seen that many RB flywheels. I would think it very unlikely. On the other hand it is quite possible that someone has fitted a twin plate clutch if your engine has been heavily modified (they are not standard).

Or else you have a screw loose somewhere?!!

OMY31T Rising Star

OMY31T

Posted
  • Author
Posted (edited)

this is an oem replacement for a dual mass flywheel on an R34 GT-R

OEM equivalent clutch kit including DMF NSK-7725DMF

this is also for sale on SAU

from an R34 GT-R VSpec

Stock used

Used dual-mass flywheel now for sale - Will inspect condition and update. For now price = $250, may go up or down $50 depending on confirmed condition (will post pics)

so skylines definalty have them and i thought, being a NEO engine, with gtr gearbox(if that waht the awd box is), it may have the GTR dual mass flywheel. im not sure if the GTT had them, but its possible aswell.

Edited by OMY31T
KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

Well I remain unconvinced. From my "research" the only Skyline to have a dual mass flywheel as OEM is the R34GTR with the 6 speed Getrag although aftermarket dmfs are around.

I have an R33GTR box and clutch in my Stagea and the clutch and flywheel came out of a low mileage R33GTR and its a solid flywheel. I'll bet quids that the RS4s came out with a solid flywheel.

OMY31T Rising Star

OMY31T

Posted
  • Author
Posted

mmmm i guess ill just have to pull it out, because its really the only explaination for the noise that i can come up with.... it doesnt sound like piston slap, and all of the cylinder compression are good, i thought it may have been the idler or tensioner pulley for the timing belt, but they have been checked and are fine. the car drives beautifully so its unlikely to be an internal bearing.....

this has really got me by the short and curlys, its all thats stopping me from sending the turbo off to hypergear, got the FMIC, fuel pump, z32afm, hard pipe intake, all i need is the turbo and ecu + tune, but im not going to send it off and power it up if its going to cause more problems...

pipster11 Grand Master

pipster11

Posted
Posted

As stated before, 6 speeds get dual mass flywheels a la 34gtr and s15

Quite likely to have copped a twin plate clutch in japland, extra likely if your clutch is quite firm

pv35gt8 Collaborator

pv35gt8

Posted
Posted

Disconnect either injectors or spark down the back end of the motor (one at a time) and check if the noise goes.

If it does it will more than likely be big end bearings, Happened to me on my R33 a few years back.

Raysboostin Mentor

Raysboostin

Posted
Posted

i think i answered my own question after further googling it seems the Rs4s from 97 onwards has a dual mass flywheel
:D

My RS4S is a 98 and as i have the flywheel out sitting next to the gearbox on the floor, i can tell u its definately NOT a dual mass flywheel. The noise is prob the throw out bearing. Mine was noisy.

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