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 Post subject: crankcase rebreather
PostPosted: Fri Apr 01, 2011 10:43 am 
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Joined: Sun Mar 29, 2009 6:01 pm
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Location: Geelong
After changing the oil in my clubbie I took her for a spin. Afterwards at home,I removed the rocker cover oil fill cap and when I did, the engine idle dropped dramatically. I also noticed that the rebreather nozzle has been sealed off, so the rebreather tube connected to the air cleaner isn't doing anything. Why would it be like this? :shock:


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PostPosted: Fri Apr 01, 2011 11:12 am 
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The breather from the air cleaner is deliberately restricted, otherwise the PCV system will suck lots of air through there and run lean. As when you pull the filler cap off.
What you have is normal.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


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PostPosted: Fri Apr 01, 2011 12:31 pm 
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If all is correctly connected and your engine & carb are OK, then the revs actually increase at Idle - slightly (by ~50 to 100 rpms) when you remove the oil filler cap.

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PostPosted: Fri Apr 01, 2011 10:36 pm 
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Joined: Sun Mar 29, 2009 6:01 pm
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Ok sounds like everything is normal... then thanks for the info guys


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