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Yes, in my experience
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Posted by MI-Roger [Email] (#882) [Profile/Gallery] (more from MI-Roger) on Wed, 14 Jul 2010 14:42:05 Share Post by Email
In Reply to: Forge BOV's, Erik919kt, Sun, 11 Jul 2010 09:22:17
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I have the green spring installed in my Forge diaphragm style BPV and noticed the same issue you are describing. I opened the valve and was shocked to discover how much the Green spring had shortened in use compared to the Blue and Yellow springs still in the box.

Since my valve included only additional springs and no spacers, my solution was to buy fender washers at the local hardware store that fit inside the Forge spring chamber. I bought four washers for around $0.30 each and installed two. Performance immediately improved.

posted by 98.250.156... 
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Saabs owned:
2008 9-5 Aero Sedan, sold at 227K miles
2006 9-3SC 2.0T - Wife's daily driver
2000 Viggen Convertible - Sold May, 2022
1964 Quantum IV Formula Car - Retirement project
2000 9-5lpt Sedan, sold at 318K miles
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