GT2 loud bang under load car wont move
#1
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Hoping for some possible causes to what I believe was a part failure. This evening I was driving in 2nd gear and under a pretty strong application of throttle when BOOM! Loud bang followed by metallic sounds . No fluids or smoke evident. Engine spins freely and clutch feels normal and I can push the shift lever into all gears normally BUT while the shifter is in ANY gear I can release the clutch entirely and it doesnt stall. As a matter of fact the wheels are in neutral and i can roll the car. When rolling the car I can hear some clunking and metal noises towards the rear or the car. My car has a lightweight flywheel and triple disc carbon clutch. I have heard of flywheels breaking in two with 8 bolts being sheared off. Not sure this is the case but I've ruled out engine failure.
Any ideas? Plan on towing to a specialist but wondering what you might think?
TIA
Any ideas? Plan on towing to a specialist but wondering what you might think?
TIA
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keepupp (06-05-2021)
#3
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keepupp (06-05-2021)
#5
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Yes, when in gear car rolls freely. Clutch effort hasn't changed and shifter goes into each gear normally yet when clutch is released the car doesn't stall. This morning I inspected underneath the car for fluids and nothing. Engine fires up right away with no stumbling or engine light. When rolling the car you can hear some clunking towards the rear. Car has full bolt ons and a lightweight flywheel and triple carbon clutch.
#6
Three Wheelin'
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If the mechanism to operate clutch is intact, pedal pressure may not change.
from there, either your clutch plates or springs failed. Transmission is between engine and rear of car so where sounds should come from.
if just the clutch, 3-4K should fix it. Good luck
from there, either your clutch plates or springs failed. Transmission is between engine and rear of car so where sounds should come from.
if just the clutch, 3-4K should fix it. Good luck
#7
Burning Brakes
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I doubt it is common place but you can't rule out a material defect. Could be something let go in the clutch assembly as well. You just won't know until you pull it apart.
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keepupp (06-06-2021)
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#9
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I have not gotten underneath the car yet. However, I would imagine the car would still grab gears if a drive shaft were broken. As it stands, I can put it in any gear, release the clutch completely and it isnt engaging the gear. It stays in neutral. Clutch pedal feel is normal and engine runs normal. Something clearly broke due to the big boom and metal sounds and I think the input shaft may be it. Wont know until the trans is dropped and inspected.
#10
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#12
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It was very noisy when it broke. Bearings being tossed about making metal on metal sounds made me think it was the engine until I stopped the car and noticed it was still running smoothly and revved freely.
#13
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