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****ing Vacuum Leak

Squizz

By Squizz,
in Engines & Forced Induction

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Squizz Grand Master

Squizz

Posted
Posted

I have air pissing out of the clutch pedal. Yes you read correctly. There is a loud hiss from in the engine bay and my idle has gone to shit and on trailing throttle it surges like a hoe.

The air noise is coming from the back of the block down near the top of the bellhousing. What is in that area that would have vacuum and would stop hissing when the clutch is depressed - as in pushed in not sad and unhappy.

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gtrken Grand Master

gtrken

Posted
Posted

if its a GTR then I would say the clutch booster has shat the diaphragm.

The GTR's have a small booster which the clutch m/cyl attaches to and has a vacuum hose running to it.

Take the hose off and plug it to see if the sound stops.

The clutch pedal will get real heavy but that is because it will have no vacuum assistance. It works the same as the brake booster assistance.

Cheers

Ken

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Squizz Grand Master

Squizz

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Ok blocked the vacuum to the intake and the stall has gone away. Clutch is only marginally heavier so it mat have been dying for a while. What's the boost cost to fix or should I just do curls on my right leg to compensate for my overly massive left one now...

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