Q-jet
Heel & Toe
Joined: May 2002
Posts: 21
Likes: 1
From: Rocky Point NY
Re: Q-jet (derv3tt3)
derv3tt3,
Disconnect the small black vacuum hose thats already on the valve and push in the lever until it bottoms out. Then while holding the lever in close off the vacuum opening with another finger and then release the lever. The lever should move just a slight amount and should then hold its position. If the lever moves then you can suspect a leak in the diaphragm or in the housing which case you should replace it. You can also attach a longer length of vacuum hose to the valve which is long enough to enable you to create vacuum by sucking on the tube. You can the observe the operation of the lever as it pulls in until it bottoms out then taking your tongue seal hole in the end of the tube the lever should again hold its position - if not then may need replacing. Both ways work just as well. Also some Vacuum breaks have a small bleed hole that may need to be to be covered before you test it. Good luck!!!
Rich
Disconnect the small black vacuum hose thats already on the valve and push in the lever until it bottoms out. Then while holding the lever in close off the vacuum opening with another finger and then release the lever. The lever should move just a slight amount and should then hold its position. If the lever moves then you can suspect a leak in the diaphragm or in the housing which case you should replace it. You can also attach a longer length of vacuum hose to the valve which is long enough to enable you to create vacuum by sucking on the tube. You can the observe the operation of the lever as it pulls in until it bottoms out then taking your tongue seal hole in the end of the tube the lever should again hold its position - if not then may need replacing. Both ways work just as well. Also some Vacuum breaks have a small bleed hole that may need to be to be covered before you test it. Good luck!!!
Rich
