Forge dump valve spring
#3
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ive had it all apart and greased it up, and i removed a dump valve prior to fitting this one so shouldnt be a pipework problem
it just sorta chatters... no dump ?
it just sorta chatters... no dump ?
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im still running in new engine so i cant go too mad.. ive gently give it full boost once.. no dump, just chatter..
is a red spring softer than the blue??
is a red spring softer than the blue??
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#14
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If you look on the forge web site it gives the spring relief pressures by colour. Red is the strongest then I think blue. If the valve doesnt dump the spring is to strong and the valve wont open so you have to go down a grade i.e if you have a red spring and it doesnt dump go to a blue if it still doesnt dump go to the next one. Forge do a kit with 4 springs and some shims for around 12 quid
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