Posted July 7, 20195 yr comment_579146 My air cleaner won’t clear the brake bleeder valve. I must remove the air cleaner cover along with the back plate that is supposed be attached to the carbs. I can never actually attach the back plate and can only secure the entire air cleaner by the two wing nuts. Can someone tell me how far their bleed valves protrude from the master cylinder and also the gap between the tip of the bleeder valve and the air cleaner cover? My bleeder protrudes 3/4 inch from master cylinder. I have 1 inch gap between tip of bleeder and the filter cover. In essence I have one inch of clearance to remove cover. any help is appreciated. Link to comment https://www.classiczcars.com/forums/topic/62460-air-cleaner-won%E2%80%99t-clear-brake-bleeder-valve/ Share on other sites More sharing options...
July 7, 20195 yr comment_579149 They're tough to get off the first time or two. I have to leave the wing nut bolts in and remove the cover with the filter still inside the cover. Have you ever had it off? Link to comment https://www.classiczcars.com/forums/topic/62460-air-cleaner-won%E2%80%99t-clear-brake-bleeder-valve/#findComment-579149 Share on other sites More sharing options...
July 7, 20195 yr Author comment_579150 Yes, It’ll come off and on with only the wing nuts holding the entire unit together. If I mount the back plate to carbs then I can’t squeeze the cover on. I can see it’ll be tight, but I tried every which way to fit the cover when the back plate is secure. it always hits the front bleeder valve. Edited July 7, 20195 yr by wadelester Link to comment https://www.classiczcars.com/forums/topic/62460-air-cleaner-won%E2%80%99t-clear-brake-bleeder-valve/#findComment-579150 Share on other sites More sharing options...
July 7, 20195 yr comment_579151 It looks like the root of the problem is with the master cylinder - bleeders usually point outboard. Link to comment https://www.classiczcars.com/forums/topic/62460-air-cleaner-won%E2%80%99t-clear-brake-bleeder-valve/#findComment-579151 Share on other sites More sharing options...
July 7, 20195 yr comment_579152 Link to comment https://www.classiczcars.com/forums/topic/62460-air-cleaner-won%E2%80%99t-clear-brake-bleeder-valve/#findComment-579152 Share on other sites More sharing options...
July 7, 20195 yr comment_579154 Just keep in mind that the picture @siteunseen posted is for a later car where the front brake circuit is closer to the booster. Otherwise, the bleed screws are shown correctly. What a bargain! https://whiteheadperformance.com/product/brake-master-cylinder-oem-46010-e4602-datsun-240z-260z-280z-1970-1971/ Edited July 7, 20195 yr by SteveJ Link to comment https://www.classiczcars.com/forums/topic/62460-air-cleaner-won%E2%80%99t-clear-brake-bleeder-valve/#findComment-579154 Share on other sites More sharing options...
July 7, 20195 yr comment_579164 3 hours ago, SteveJ said: What a bargain! https://whiteheadperformance.com/product/brake-master-cylinder-oem-46010-e4602-datsun-240z-260z-280z-1970-1971/ Ouch!!! Link to comment https://www.classiczcars.com/forums/topic/62460-air-cleaner-won%E2%80%99t-clear-brake-bleeder-valve/#findComment-579164 Share on other sites More sharing options...
July 8, 20195 yr comment_579171 3 hours ago, Patcon said: Ouch!!! That's supply & demand for you. Link to comment https://www.classiczcars.com/forums/topic/62460-air-cleaner-won%E2%80%99t-clear-brake-bleeder-valve/#findComment-579171 Share on other sites More sharing options...
July 8, 20195 yr comment_579172 1 minute ago, SteveJ said: That's supply & demand for you. That starts to make restoring and sleeving the old units I have laying around make sense Link to comment https://www.classiczcars.com/forums/topic/62460-air-cleaner-won%E2%80%99t-clear-brake-bleeder-valve/#findComment-579172 Share on other sites More sharing options...
July 8, 20195 yr comment_579193 I had my 70 Z's brake m/c sleeved and rebuilt a couple of years ago at a cost of Cdn $275. A problem I encountered at the time was finding a rebuild kit (the design of the pistons, etc for the early-model m/c is quite different from that used for the later cars). The brake rebuilder that I used operates a big business and has been around for many years, so they had the parts in stock. That was in 2016. Maybe a new stash of rebuild kits has surfaced since then with one of the Z aftermarket suppliers. If not, be sure that you're happy with the condition of your seals and pistons before you invest any time in sleeving the casting. Link to comment https://www.classiczcars.com/forums/topic/62460-air-cleaner-won%E2%80%99t-clear-brake-bleeder-valve/#findComment-579193 Share on other sites More sharing options...
July 8, 20195 yr Author comment_579201 Thanks everyone. Your thoughts gave me the motivation to give it one more try. I was able to find one solution to the brain teaser that allowed me to mount the back plate and then then install/remove the air cleaner cover. I guess sometimes you need to let problems sit for awhile before trying again. thanks again. Link to comment https://www.classiczcars.com/forums/topic/62460-air-cleaner-won%E2%80%99t-clear-brake-bleeder-valve/#findComment-579201 Share on other sites More sharing options...
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