This question is for Dennis H: are there not adjusting screws of some sort, even though the lifters are hydraulic? Or is it pre - set, like some of the later car engines I worked on before I stopped? I had to adjust the rockers on my 550 Four. Stanley
________________________________ From: "[email protected]" <[email protected]> To: [email protected] Sent: Saturday, March 14, 2009 11:28:54 AM Subject: [Nighthawk Lovers] Re: 650 engine noise In the manual they say : don't mix them up, if taking them out. They must be carefully paired with their corresponding hole. At 17:16 13/03/2009 -0700, you wrote: >According the the previous owner the engine was never opened before >but based on some scratches on the frame I do wonder. > >If air gets in a hydraulic tappet will it work its way out eventually? >I suspect not based on the cross section of a tappet displayed in the >shop manual. But, if there was air in a tappet wouldn't it collapse >each time the valve opens/closes which means the tappet would always >be noisy. In my bike's case the tappets do quiet down eventually. > >Is it possible to check these things visually, i.e. can I "rock" a >rocker arm and assume any that are loose have a bad/leaking tappet >under them. I would assume all of them should be tight against the >valve stem when the valve is closed and the cam lobe is at the >shortest radius to rocker distance. In other words when the valve >train is in it's most relaxed state for that valve. Even if I found a >couple bad ones with some sort of visual inspection I'd probably take >'em all out and clean and bleed 'em if that's prudent. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en -~----------~----~----~----~------~----~------~--~---
