hhmmm, i think so....i hope so..never took notice to tell u the truth...oh shit i think i might not actualy..last time we took the valves out i remember having to wet sand the ends so we could slide them through the valve guides ..so i , i cant remeber them..
With the wiping action of the rocker, it needs the large flat surface of a lash cap, otherwise it'll wear the valve and the rocker prematurely. Also the geometery would be up the creek as they're designed for the extra thickness of the cap.
You would have seen them when doing the valves, the cheaper ones are usually loose on the valves, but it's preferable to be firm or somewhat tight on the valve.
All stainless valves need either a lash cap or a swivel foot adjuster, otherwise they wear very quickly, a stock adjuster screw damages the softer stainless easily.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
Craig Torrens6 times Australian, 7 times State Hillclimb Class Champion
cnfabo wrote:hhmmm, i think so....i hope so..never took notice to tell u the truth...oh shit i think i might not actualy..last time we took the valves out i remember having to wet sand the ends so we could slide them through the valve guides ..so i , i cant remeber them..
With the miles it's done the valves may be damaged by now without them, so to fit them they will at least need to be cleaned up around the tip where the cap sits.
I use Berg or Scat, but the Scat tend to be looser.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
Craig Torrens6 times Australian, 7 times State Hillclimb Class Champion
ok heres the verdict, the head guy took to springs off and they had 130ft ibs on the seat and 285 ft ibs at full lift ".534"..then he found 3 springs that have lost 10 ft ibs....and i did mushroom the valves and also wore out the keepers grooves a bit....oh well...u learn dont you...
so new springs for me,i was thinking bugpack 4046's...any suggestions.....
Craig Torrens6 times Australian, 7 times State Hillclimb Class Champion
Get a rev limiter
and throw away that K8.
That is my opinion, you asked!!
130lbs on the seat is a little low, but not horrendous.(?)
If you are keeping the revs limited to no more than 10% over the peak power,
150/320lbs should be enough pressure if the cam profile is harmonic free.
I would shout it some fresh springs.
Keep your revs lower with a limiter,
and set tappets with zero lash if you have chromoly pushrods.
dave, if only throwing out the cam was that easy........i have been thinking about a bigger set of heads and cam though..but its no easy decision..............
engines back in and running great...new valves, cb's lashcaps and bugpack 4046 springs...revs to 7000 but you can feel the power drop at 6500 6700 there abouts.....
