Date: Thu, 27 Oct 2005 19:45:20 GMT From: James Sweet <jamessweetnospamail.com> Subject: Re: Where did the guts of my boost recirculation valve go?
ShazWozza wrote: > Yesterday I was following behind a B-double (a semi pulling two full size > trailers) at around 100-110km/h. I saw my opportunity to overtake safely > so I changed down to 4th and gave the old girl WOT. As always I was > rewarded by that lovely feeling of rapid acceleration, the B-double was > cleared and I was safely back onto my side of the road doing around 150 > when I changed up to 5th and backed off. At this instant there was a FWOP > sound, followed by a sound that could only described as an elephant farting > and then the engine ran like shit. > > I pulled off the road, the engine idled poorly while I let the hair dryer > cool down. After lifting the bonnet it was obvious that he plastic Bosch > boost recirculation valve had shit itself big time. The plastic end part > that accepts the vacuum hose had been blown off from the main body of the > valve and the guts of the valve were gone - nowhere to be seen. > > I pressed the end cap back onto the valve, wrapped some spare vacuum hose > around it to hold it in place and drove home the remaining 100kms with no > boost and woeful fuel consumption. > > I replaced the valve today - $52. Those Bosch valves have a very short > lifespan - 6 months to a year on this car (9000T 2.0) , but I have never > seen one fail like this. Perhaps Bosch are making the valves in China > these days? > Those plastic valves don't really hold up well at higher boost levels, at $52 a pop you'll probably save yourself some money by buying a nice aftermarket bypass valve, you can get them that are really nice machined aluminum.
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