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Title: Valve springs preventive change? Post by: 181 on January 27, 2012, 15:48:03 pm Is it wise to change the valve springs from preventive reasons? I´m going to pull my 2276 engine after two seasons (around 10 000 km and around 40 1/4 passes). Heads are basicly Steve Tims Stage 2 with dual valve springs, stainless steel valves. Cam is FK8 going to be changed for 86C, engine pulls to 6500RPM.
With engine out, should I change the springs for a new set? Thanks, Jan Title: Re: Vlave springs preventive change? Post by: Erlend / bug66 on January 27, 2012, 15:54:43 pm I'm going to run 86C with a set of VW650 springs.
Springs need to be matched to lift of cam + rockers Title: Re: Valve springs preventive change? Post by: 181 on January 27, 2012, 16:00:17 pm Rockers will be the same - CB´s 1.4:1. FK8 and 86C have a very close, if not the same valve lift.
Title: Re: Valve springs preventive change? Post by: JS on January 27, 2012, 16:27:54 pm I would take them off and go to a machine shop to have them tested.
Title: Re: Valve springs preventive change? Post by: nicolas on January 28, 2012, 13:21:34 pm it can work, but in my opinion when the springs are 'set' for a cam, i would change them when you put in a new cam, i think they could break when subjected to higher lifts, faster ramps,...
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