Originally Posted by
Rick57
I have decided to bring my WS7 III out of retirement. I replaced seals and bearings. I have added a turbo head button. Compression is good. I am using a 2045 pipe and a 198 header pipe. I was doing some baseline tuning the other day and noticed at max RPM there is a cracking noise that almost resembles a 4 stroke valve float. HSN did not have any effect. Any thoughts? The motor make good power up until it revs out.
What is "normal" fuel leakage for the front bearing? Should the amount of leakage be used to determine the condition of the bearing?
To me it sounds like the plug is bad honestly. Have you tried another plug maybe different brand or different temp? Or even just another new one of what you already have? That pipe and header combo is what I always ran on my WS7 engines. The front bearing should not really leak any fuel unless your running really rich still. If you run only one or two tanks and notice it's already getting your engine block wet you are either too rich or the bearing needs replaced. NVR17011 and 01151-72 are the same bearing.. They work great and are worth the extra money IMO!!