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tappity noise coming from hose at front of rocker cover 

 

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 Post subject: tappity noise coming from hose at front of rocker cover
Posted: Thu Dec 28, 2006 7:40 pm 
Parts Gopher
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Ride: '99 XH XR6 5 SPEED

Location: Melbourne
VIC, Australia

on my 82 xe, at the front of the rocker cover there is 1 metal 90 degree tube and 2 hose coming off that which run down 2 the carby. this thing has a valve inside it. when i block the hole the engine revs harder, gains bout 100-300 rpm what is it and what does it do???

 

 

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Posted: Thu Dec 28, 2006 8:24 pm 
Getting Side Ways
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Ride: Triton ute BA Futura

Location: Woori Yallock
VIC, Australia

Supplies vaccum to carby?

EGR Valve?


Im only used to seeing an xe with a 351 in it :P
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Posted: Thu Dec 28, 2006 8:29 pm 
Getting Side Ways
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Ride: XH B&S ute, Navara 4x4

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Location: Bordertown
SA, Australia

PCV valve. If it is rattling try replacing it. It picks up revs when you disconnect it cos you basically have a vacuum leak. Gotta have it and a breather tho or crankcase pressurises especially if engine is a bit old......also the cops like to see it therr for emission reasons 8-)

 

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