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 New Clutch plate = power loss ?

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TS812799
post Nov 24 2008, 08:32 PM, updated 18y ago

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New clutch plate + new clutch cover + new bearing

Engine flushed using shell engine flush + new Engine oil Castrol Magnatec

4 new mountings ... (dun think it's related)

got my car and realised that there's some power loss ... i wonder why ... do i need 2 "run in" the new plates ? sigh ...

from exedy to valeo
TS812799
post Nov 24 2008, 08:44 PM

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QUOTE(serigala @ Nov 24 2008, 08:41 PM)
exedy single plate?
maybe different type of clutch..
exedy racing clutch grips better than normal clutch..
*
hmmm was using a fake exedy cause i bought the car like 6 months ago ... and i didn't know bout it (2nd hand problems)

so i went to look for the original but most of them are selling the fake ones ...

in the end took the valeo brand ...


Added on November 24, 2008, 8:45 pmp/s yeah single plate


This post has been edited by 812799: Nov 24 2008, 08:45 PM
TS812799
post Nov 24 2008, 10:52 PM

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QUOTE(GoldenHawk @ Nov 24 2008, 08:54 PM)
Good chance it's clutch slip. Adjusted the clutch?
*
nope , i dun think it's clutch slip , car still moves but loss of torque by almost 50% (by feel and not dyno)

QUOTE(779364 @ Nov 24 2008, 10:35 PM)
Have your mechanic recalibrate the clutch?

It might be due to the clutch not being re-engage properly even when clutch is not being depress.So your RPM climb but the clutch slips.

For me,after changing the clutch plate,my car become very hard to control cause even when release the clutch pedal abit make the car like wanna pecut everytime when stationary so I had to drive it for a few hundred km in order for the clutch plate to run in properly.
*
hmmm no idea but i guess a fresh piece of clutch plate doesn't make me lose so much pull ... damm
TS812799
post Nov 24 2008, 11:04 PM

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QUOTE(RoxyGal @ Nov 24 2008, 10:55 PM)
imagine u drive a sport car with twin plate racing clutch ....
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i dowan 2 , with sore legs being stuck in jam now come back 2 my topic ... i suspect either the engine flush or the clutch ... damm stress now , dowan my 15.3kg-m of torque to be 10kg-m ... crap ...
TS812799
post Nov 25 2008, 11:03 PM

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QUOTE(RoxyGal @ Nov 25 2008, 09:58 PM)
perhaps power loss is due to this

Engine flushed using shell engine flush + new Engine oil Castrol Magnatec

why u use the engine flush?not really advisable to do that.

last time what engine oil u using b4 change to magnatec?
clutch slip will contribute to speed loss but not power loss

coz the rpm will raise hence more torque and power but no speed.It's jz like a fully loaded lorry moving on the road
*
all this while using castrol magnatec 10w-40 every 4000(sometimes less than 4k) consistently

my backside was itchy and now regretted sleep.gif"

power loss = speed loss

hard for the speed 2 climb , i need a dry night 2 do my timings for 0-100km/h and 7.5k @ 3rd gear ,

engine oil checked (no leakage , no white smoke , maintain at the max level) , but oil was very watery as in dripping from the moment i pull out the "dipstick" i realised traced of water (shell engine flush is very diluted) , and at the bottom it seems like water dripping ...

just now went for a drive , i would say maybe loss of about 20%-30% of power 2 push the car

gear oil was new when i changed my clutch plate using motul 90 PA , previously was redline ... (gear oil shld not be a problem)

my 1st solution : jack the car as high as possible --> release the oil --> replace with some cheap oil --> go drive a few rounds --> release again --> put in new magnatec --> add in the engine protector gel or liquid ...



TS812799
post Nov 25 2008, 11:25 PM

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QUOTE(ayell @ Nov 25 2008, 11:04 PM)
It could be u're used to your weared clutch before, clutch slip a bit, torque is there then install new clutch more grip then your engine need to work harder to pull, so u feel power loss.

This is only my opinion, what I experience after changing clutch to no spring 6 puck full racing clutch.
*
it's my bearing that gave way not the clutch plate that has been slipping ...

no slip shld be better grip hence more acceleration as usage or torque has been utilised ?

if i were 2 changed into different clutch plates then maybe i shld feel the difference ... but i went stock for stock ...
TS812799
post Nov 26 2008, 12:45 AM

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QUOTE(RoxyGal @ Nov 26 2008, 12:18 AM)
3rd gear 7500 rpm?what car u driving? vtec ka?

redline how many rpm?

u never flush cleanly the old engine oil and the oil flush s8 put in new oil?how come ur new oil like that wan?
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how i wish i was driving a vtec ...

just a 4g93p only ... 7.5k is my limit , rev cut alrdy @ 3rd gear was doing around 140-150km/h and 0-100 around +/- 10secs

now i really dun know , by the feel i think can't reach those peak at the moment

alrdy drained old engine oil , put in flush , run for 5 mins and drained , put in new engine oil

so when i checked the dipstick i sense a lot of diluted chemicals through the whole stick

so my wild guess shld be the engine oil failure ... damm ...


TS812799
post Nov 26 2008, 09:01 AM

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QUOTE(RoxyGal @ Nov 26 2008, 12:50 AM)
ooo gti engine...u mean u rev till over 7000 rpm at 3rd gear...u compare to last time....no power?
i dun think u had a clutch failure coz mechanic sure know what they are doin since they always change clutch set too.

if im not mistaken...last time i did put engine flush..end up engine no more power

it need time...after change 2nd oil change only recover the power
*
share the same Gti engine ...

yeah i am almost 100% that's it's not a clutch failure ...

that's why i was thinking of draining it out alrdy ...

anyway roxygal what car u are driving ?
TS812799
post Nov 26 2008, 09:08 AM

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QUOTE(SleeplessEyes @ Nov 26 2008, 09:02 AM)
Bullshit about flushing engine will get lower power. Engine flushing removes old dirt and helps reduce friction from dirt. 

I flushed my engine by AutoChild and changed my engine oil to semi-synthetic, and I get better FC better power.

TS, ask your mechanic to recheck the clutch adjustment.
When I changed my clutch plate (only), bearings but retain back the old clutch pressure cover, I experience full power even at WOT.
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as i said , there's retention of the chemical as it's not 100% flushed ...

anyway what chemical u used to flush ?
TS812799
post Nov 26 2008, 05:47 PM

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QUOTE(RoxyGal @ Nov 26 2008, 03:31 PM)
he did in autochild..professional service place..so no problem

but u did tat with those normal mechanic and affraid they never drain cleanly
*
hmmm where's autochild ?

 

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