Super Roo Posted September 26, 2016 Share Posted September 26, 2016 What are these fittings on the clutch cylinder and plenum for (BCNR33)? Hi all, Thank you very much for your ongoing patience with my questions as I get to know my new car. So, over the weekend I got my first proper chance to work on the car, and whilst doing some stuff in the engine bay (trying to make my breather tank pass rego, but that'll have to wait until I have photos) I noticed a couple of unused fittings. One is on the plenum near the number 6 cylinder (firewall end), and is blanked off, the other is on the clutch cylinder and appears to be just open. Car runs fine, no sign of any leaks. Should I be worried? Are these meant to me hooked up and are important? Sorry if the answer to this is super obvious, I have tried searching both these forums and the web generally but maybe I just didn't try the right search terms. Thanks in advance! Link to comment https://www.sau.com.au/forums/topic/466955-what-are-these-fittings-on-the-clutch-cylinder-and-plenum-for-bcnr33/ Share on other sites More sharing options...
fsjk85 Posted September 26, 2016 Share Posted September 26, 2016 Looks like the vacuum line for the clutch booster, those 2 ends connect to each other to provide a vacuum to make the clutch easier to press. Either been removed because the previous owrner has a left foot made of diamonds or the clutch booster is leaking (most likely). Grab some hose and hook it up, if it's leaking it will probably hiss and still feel like you're pushing bricks. Some say that the clutch booster from a patrol will fit but i've found it to be larger than the one found in gtr's, best to get something like this brand new or just live with the heavy clutch. 1 Link to comment https://www.sau.com.au/forums/topic/466955-what-are-these-fittings-on-the-clutch-cylinder-and-plenum-for-bcnr33/#findComment-7778641 Share on other sites More sharing options...
Super Roo Posted October 25, 2016 Author Share Posted October 25, 2016 Cheers mate, will give that a go. It is pretty heavy, although it's also just a fairly aggressively sprung clutch to be fair. Link to comment https://www.sau.com.au/forums/topic/466955-what-are-these-fittings-on-the-clutch-cylinder-and-plenum-for-bcnr33/#findComment-7786639 Share on other sites More sharing options...
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