Just installed rebuilt valve cover
#23
Registered User
I was holding back on reporting this, but I'm prototyping a valve cover that turns the stock valve train in to a desmodromic configuration with roller followers over the cam and hydraulic tensioners.
Basically, the rocker arms follow the cam with rollers and there are hydraulic adjusters taking up the slack. What's not seen is the linkage that is part of the valve cover and uses hydraulic principles and closes the valves without the high tension from the valve springs- just a little bit to keep a valve closed.
It's like what you'd expect if a 'yota cross bred with a Ducati motorcycle.
My hold-up is "prior art" and feasibility studies.
Basically, the rocker arms follow the cam with rollers and there are hydraulic adjusters taking up the slack. What's not seen is the linkage that is part of the valve cover and uses hydraulic principles and closes the valves without the high tension from the valve springs- just a little bit to keep a valve closed.
It's like what you'd expect if a 'yota cross bred with a Ducati motorcycle.
My hold-up is "prior art" and feasibility studies.
#25
Registered User
Still have tread on them so no complaints so far. No flats ever and the tread hasn't started chunking off. All in all I'm damn happy with them and will be buying another set if I decide to stay with 31's.
#26
YotaTech Milestone-Two Millionth Post
I'm not as skilled as yous guyz....so I sent my valve cover to a machine shop....said they could machine it / bore it out / dip it / spin it / demagnetize it / hone it / and put it in bubble wrap for just under $500.... a bargain .....if only I didn't throw away the sandpaper instructions I could probably do the job myself.......but then again, I don't have a spray booth.
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