HELP! Legnum being strange!

SiliconAngel

1 AYC Bar
Location
Perth, WA
First Name
SA, Trevor
Drive
'99 Legnum VR4 Black MT
What Sam and Brad have described is exactly what I was experiencing with mine too. Mine went from mildly playing up to completely shagged in a couple of hours though - I wasn't sure why it wasn't engaging so was revving hard to compensate... First clutch I've worn out, so now I know what to look for ;)

The thing that's throwing me with yours is this 'clunking' noise... Unless that's the sound of the clutch finally engaging? Although it could be caused by a sticky thrust fork (its the arm that is actuated by the slave cylinder and moves the clutch disk back and forth from the flywheel) - mine was terrible until I regreased it.

If you want to get out of this CHEAPLY, you'll have to dismantle it yourself then take your clutch to a recon specialist (look up 'clutch' in the yellow pages) - they'll check your pressure plate to ensure its ok and either replace the disk or I believe some places will replace the friction material. Also get the flywheel machined and replace the rear main seal while you have everything apart. While I recommend replacing the thrust bearing, it's probably not strictly necessary.

If you can do all this yourself you'll probably get out of it for less than $200. But if you have to pay someone else its usually closer to a grand. Some people have been talking about as little as $500ish in labour though, so if you know a mechanic who happens to like you a lot then good luck to you!
 
G

Guest

Unregistered
Thanks for the input guys. Yeh its mainly the clunking noise that is freking me out aswell. The revs jumping under labour makes sense but the clunking after a few jumps makes me scared lol. Im worried if i take it to a clutch specialist they will see me coming and say "yeh its the clutch", then ill get it fixed and still have an issue. Could someone please eliminate for me the possibility of turbo or AYC/diff problems? Does it sound like it could be anything else?
You have all been very helpful so far so thankyou!
 
G

Guest

Unregistered
Just talked to my friendly local clutch specialist who did not wish to give a quote on anything about the car lol. His favourite option was me taking the clutch out to show him. I still dont know where to get this guide to ripping it out. How much does it cost to join clubvr4? or is it available anywhere else?
 

scientist

Hesitantly Boosting
Location
Dominica
First Name
Edmund Robinson
Drive
1989 Galant VR4
I had the jerking problem at high revs and I changed leads but also eveen though I had installed new irridium plugs and then had them re gapped and the jerking faded it was still around in 3rd and 4th gears.
I cracked the shits and did what I did in my 1991 vr4.
I went and bought bosch super 4 plugs with a colder rating. BX56 or PX56 cant remember.
Anyway car goes like a rocket now. I always found my tripple tip ngk plugs to work better then platinum and irridium. The high reving turbo motors seem to be more liking to the 3 and 4 tip plugs. I recomend it especially as they cost 4 times less and I dont care if I change them even every 10,000kms as long as I get a really strong 10kms out of the plugs and I thought that the new vr4's would like the irridiums or platinums better but here again I keep on hearing heaps of ignition problems so I think you guys should look at the 4 electrode plugs more seriously and they are more cost effective as far as I am concerned.

The 3 and 4 tip thing is only marketing, They don't offer any gain over the regular copper NGK plug. Iridiums and Platinums are supposed to last longer, thats about it, but they provide less spark energy for the same plug gap
 
G

Guest

Unregistered
Just an update: talked to a mechanic today who has been dealing with a 300zx twin turbo doing similar things to mine and they fixed it by hooking it up to a computer? Any light on this? they are goign to check mine out tommorow. Another mechanic also suggested that it ia not the clutch, but may be shit fuel and the engine missing (the clunking noise being the engine mounts). What do you guys think of the diagnosis? It would be awesome if i didn't have to do the clutch. Neither of them have driven, or been in the car yet.
 

Hotwire

1 AYC Bar
Premium Member
Location
South Australia
First Name
Lee
Drive
97 COTY
John, where abouts are you located? I suggest taking the car to a mitsubishi specialist, perhaps and EVO specialist if you are near one. Nissan workshops won't have the correct interface to our cars, whereas an EVO shop can hook up a number of different software programs to monitor all the sensors etc. Its certainly strange what you are describing.
 
G

Guest

Unregistered
You are describing several problems here. I agree an evo / mitsubishi specialist would be the best place to start. But to me, I would start with a new set of ignition leads as they are a commen problem for misfiring under load and light acceleration.

The clunking could be broken engine mounts. If it was the clutch, then that won't clunk but will create a rising rpm with no increase in road speed upon acceleration. The rpm increase is usually quite sudden and rushed.
 
G

Guest

Unregistered
Hey Lee, located in Coffs Harbour NSW. No EVO specialist here at all. The best i have got is a mate who has worked on a local guys evo 5 rally car lol. Does anyone no of any nearby? Bear in mind i cant drive it to newcastle or brisbane ect.

Thanks for the help david. Thats what i have thought aswell about the revs not rising but mainly faltering. The noise is scary but doesnt seem to be a broken engine mount as other times i can give it some and it will rev through the range fine. Mystery to me? Im not in a rush to buy a clutch judt yet now, thats all i know.
 

Hotwire

1 AYC Bar
Premium Member
Location
South Australia
First Name
Lee
Drive
97 COTY
What you need is someone with EvoScan and the Openport cable. Perhaps try posting in the NSW section of EvolutionOz forums to see if any local evo owners have one and can meet up with you/help you out if there are no workshops.
 
G

Guest

Unregistered
Thanks Lee, i'll give it a try. i wil take it to the mechanic and see what they come up with anyway. Actually, the guy who rallys his Evo 5 must have the gear. i'll see if i can get in contact with him!
 
G

Guest

Unregistered
GREAT NEWS! Took it to a local mechaninc who has had a few imports himself and he believes its not the clutch (thank god). He believes it is a fuel issue, whether it be the fuel itself, filter, injectors or leads. The "clunk" ive been hearing he believes is the engine mount. Does this sound plausible? I hope so. Now i guess a good set of plugs and leads are on the cards!
 
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