manual 380 jerky and clunky..

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Aaron95j
Member
Posts: 57
Joined: 14 Oct 2014, 22:30
State: New South Wales
Model: Mitsubishi 380 SX
Engine: 3.8-Litre 6G75 V6 24V SOHC
Transmission: 5 Speed Manual

manual 380 jerky and clunky..

Post by Aaron95j » 09 May 2016, 17:41

Hi everyone,

Before I go into too much detail do 380s have dual or single mass flywheels? I ask because I am getting symptoms that seem a lot like that of a failing DMF.

I have clunks when disengaging the clutch (can also feel the judder). Car seems to take up a bit of give when engaging clutch and rocks back and forth a bit sometimes. The smoother I try to drive the worse it seems. If I'm pulling quickly onto a highway that is when I see the smoothest shifts. These symptoms were present before the LSD install and have always gradually gotten worse. Have recently had to replace FL Bearing and the clutch was replaced during the LSD install with the hopes of curing this.

The car also seems unacceptably jerky at idle speed in 1st or 2nd gear applying light throttle (without touching the clutch).

All these symptoms are worse some days and better others. Theres also an amount of throttle lag which I wouldn't consider normal and only present going from 0 throttle..

Thoughts?

z80
Senior Member
Posts: 1477
Joined: 24 Apr 2011, 16:24
State: Victoria
Model: 380GT/VRX/TMR380/Platinum
Engine: 3.8-Litre 6G75 V6 24V SOHC
Location: Torquay

Re: manual 380 jerky and clunky..

Post by z80 » 20 Jun 2016, 21:09

Sounds like CV joi9nts may be rooted?
Twin turbo Mitsubishi 380GT -16 PSI boost with 3.9 litres and LSD conservatively at ... 270Kw @ 710Nm at the wheels!
Supercharged TMR380 ....complete with custom Quaife limited slip differential.........191kw @400NM at the wheels
No virtual dyno here.

Aaron95j
Member
Posts: 57
Joined: 14 Oct 2014, 22:30
State: New South Wales
Model: Mitsubishi 380 SX
Engine: 3.8-Litre 6G75 V6 24V SOHC
Transmission: 5 Speed Manual

Re: manual 380 jerky and clunky..

Post by Aaron95j » 24 Jun 2016, 00:43

Just replaced both sides with brand new Pedders shafts (and what a hassle that was!), still does it unfortunately :/
There originally was play in both shafts, new ones may have helped the problem but I'm sure it's not solved yet..

feels like something is almost binding as I'm engaging the clutch or throttle seems late to kick in and sudden.

Aaron95j
Member
Posts: 57
Joined: 14 Oct 2014, 22:30
State: New South Wales
Model: Mitsubishi 380 SX
Engine: 3.8-Litre 6G75 V6 24V SOHC
Transmission: 5 Speed Manual

Re: manual 380 jerky and clunky..

Post by Aaron95j » 02 Jul 2016, 16:36

Clutch makes grinding noise on cold start only while slipping, silent fully engaged or fully disengaged. Has vibrated a couple times too. Should I look at the flywheel? I have no problem replacing parts if its gonna be an upgrade but I can't find any aftermarket flywheel options.. any thoughts anyone?

z80
Senior Member
Posts: 1477
Joined: 24 Apr 2011, 16:24
State: Victoria
Model: 380GT/VRX/TMR380/Platinum
Engine: 3.8-Litre 6G75 V6 24V SOHC
Location: Torquay

Re: manual 380 jerky and clunky..

Post by z80 » 07 Jul 2016, 01:12

Aaron95j wrote:Clutch makes grinding noise on cold start only while slipping, silent fully engaged or fully disengaged. Has vibrated a couple times too. Should I look at the flywheel? I have no problem replacing parts if its gonna be an upgrade but I can't find any aftermarket flywheel options.. any thoughts anyone?

get it on a hoist with a mate to drive and operate clutch to sew where noise is coming from.
Twin turbo Mitsubishi 380GT -16 PSI boost with 3.9 litres and LSD conservatively at ... 270Kw @ 710Nm at the wheels!
Supercharged TMR380 ....complete with custom Quaife limited slip differential.........191kw @400NM at the wheels
No virtual dyno here.

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