Clutch blow by valve

Including Spyders & GT4s
NickG
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I was noticing when on a ertain part of Club Motorsports track (coming out of T5), that when I changed up from 2nd to 3rd quickly, I would occasionally get the clutch "balking" as if it did not want to really bite (as apposed to slipping). Didn't happen all the time. Talking to a BMW mechanic friend of mine, he said that later BMWs have a "blow back" valve that will restrict the flow of fluid under certain situations (ie; trying to do burn outs by repeated dropping clutch).

Does anyone know if the (981 GT4 has this "blow back" valve fitted?

Thanks,
Nick

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J-Dub
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The 718 does have this valve, it is a plug with a hole in it to restrict the flow of the clutch fluid. Think of it like the restrictor on a low flow shower head.

On my 718 it is in the slave cylinder where the clutch line connects. Simply disconnect the clutch line and use a small screw to pull out the restriction. Will require bleeding the clutch though.
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