I have NEVER been able to blow or suck through any of the 4 or 5 caps that I have (and I have two different types of caps, Euro and American, I think). But both caps hold the 13 to 17 psi pressure (as Rico says) till I'm stuck in traffic on a HOT day with a HOT engine, then the caps let go and the level in the 2nd (fill) tank begins to rise and then fall again as I begin to drive and the coolant cools off. I know this as I have driven with the engine cover off with my wife back there watching the damn thing. M2CW, Malcolm On 23 Aug 2001, at 11:39, Rico Sapolich wrote: > In a message dated 8/23/01 11:14:03 AM, VW85Westy writes: > > << Are you absolutely sure about this? I just bought a new > one, and it let me suck air through it easily. >> > > Peter, > > Unlike others, if I were not certain, I would not have said > it. I guess we have to define "easily". But, first, are > you sure the valve plate was sealed to the body of the > pressure cap? If not, blowing and sucking on the cap will > prove nothing. The cap should relieve system pressure @ > 13-17 psi positive pressure and 0.3-1.45 psi negative > pressure. > > Rich |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.