Inflate the balloon through the check valve - it should not deflate if the valve holds tight. If you suspect leaks in the line, the way to check it is to pressurize it a bit with tire compressor and cover joints with soapy water. Bubbles will tell you where it leaks.
Victor Lawrence Rhodes wrote: > > How would one test this? My system only holds for 8 and a half minutes. I > got clamps everywhere. What is the symptom for the bad check valve? > Lawrence Rhodes.... > ----- Original Message ----- > From: "Victor Tikhonov" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Friday, October 11, 2002 2:35 PM > Subject: Re: EV brake vacuum leaks > > > Honda check valve worked fine for me. You can find one > > on the junk yard. (I took it out because MES pump I use now > > has this valve integrated in.) > > > > Victor > > > > Seth Murray wrote: > > > > > > actually the entire leak is through the pump! when the pump's off air > > > can flow back into the system through it. When the check valve is > > > working, the car will hold vacuum for a few days. when it isn't > > > working. leaks like a sieve. weird. > > > > > > Seth > > > > > > On Friday, October 11, 2002, at 12:01 PM, Mark Dodrill wrote: > > > > > > > I'm not sure it's worth the effort. Unless your power brake pump > > > > cycles > > > > a lot when you aren't pressing the brake, it probably doesn't have > very > > > > much of a leak. You might be wasting a few watts, but there are other > > > > places > > > > you can make up efficiency to compensate. > > > > > > > > My 2 cents. > > > > > > > > Mark > > > > > > > > > > > >> -- Original Message -- > > > >> Date: Fri, 11 Oct 2002 11:48:27 -0400 > > > >> Subject: EV brake vacuum leaks > > > >> From: Seth Murray <[EMAIL PROTECTED]> > > > >> To: [EMAIL PROTECTED] > > > >> Reply-To: [EMAIL PROTECTED] > > > >> > > > >> > > > >> A while back someone posted something about vacuum system leaks. My > > > >> system works well except that I have been unable to find a reliable > > > >> check valve. I have tried three or four different check valves, and > > > >> on > > > > > > > >> all of them, if you put a hose clamp on it seems to distort the case > > > >> and not check properly but if you just push the hose on it isn't > tight > > > > > > > >> enough and it leaks. What check valves have other people found to > > > >> work? thanks > > > >> > > > >> Seth > > > >> > > > >> > > > >> > > > >> -- > > > >> QUESTION INTERNAL COMBUSTION > > > >> > > > >> My electric truck page, with lots of photos and a 25 page conversion > > > >> journal. Check it out! > > > >> http://users.wpi.edu/~sethm/ (no more popups!) > > > >> > > > >> My EV Album page > > > >> http://www.austinev.org/evalbum/387.html > > > >> > > > > > > > > Mark Dodrill > > > > > > > > > > > > > > > > > > > > > > -- > > > QUESTION INTERNAL COMBUSTION > > > > > > My electric truck page, with lots of photos and a 25 page conversion > > > journal. Check it out! > > > http://users.wpi.edu/~sethm/ (no more popups!) > > > > > > My EV Album page > > > http://www.austinev.org/evalbum/387.html > >
