| Vacuum brake booster check valve. [message #235507] |
Wed, 08 January 2014 14:18  |
Larry
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
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Senior Member |
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Just finished installing a back-up vacuum pump for my brake booster. In order to keep leakage to a minimum, it is important that you use a good quality check valve in the booster. I tried two different brands. I got one off of the "Help" rack. I blew and sucked on 4 of them before I found one that would seal. Then I went to NAPA and got their part.....either #89000 or #1338..depending on how you read the box. It has a spring inside that slams the sealing flap closed to prevent leakage even at low differential pressures. So here are some pics to look at to help you identify a check valve that will work. Just what I found that works.
HTH someone.
http://www.gmcmhphotos.com/photos/g6505-brake-booster-check-valve.html
Larry 
78 Royale w/500 Caddy
Menomonie, WI.
[Updated on: Thu, 09 January 2014 15:37] Report message to a moderator |
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