can Titanium or stainless valves fit into 98 wr400?
Posted August 25, 2005 - 07:44 AM
Posted August 25, 2005 - 04:07 PM
Posted August 25, 2005 - 04:51 PM
not by replacing the valves.............
Posted August 27, 2005 - 12:31 AM
Posted August 27, 2005 - 09:28 AM
before i remove the cam cap, i put it to TDC and notice theres quite a big gap between the valve lifter and the cam (clearance, 0.6mm) compare to the rest of it.
i can rotate and remove the other valve lifter easily with a magnet. but, this one (right side exhaust lifter/cap) wont rotate or move at all.
put back everything. i rotate the crankshaft about 45 Deg counter clockwise( "I" pointing upwards) and remove the cam cap. using a little piece of wooden rod , i give the valve lifter a few knock. the valve lifter moves downward and stops at the lowest point.
i use a flexiable ended wrenches to tap it and it did bounce back up. however its still stuck and the clearance is the same as before.
i am suspecting the valve spring or any idea whats wrong with it.
can someone guide me how to change valve spring and valve? i know i need a valve spring compressor. what other tools do i need.
Posted August 27, 2005 - 10:58 PM
is the area around the cap anyhow damaged so it doesnt let the cap move freely?
in any case, if you want to remove the valves, you have to remove the head so do it, it will be easier to work on the stuck cap
do you know what "shim" is, as few people advised you, they are ment for adjusting valves and are located under cap and sitting on top of the valve
Posted August 28, 2005 - 09:19 AM
it might be just damaged cap seating not allowing the cap to rise fully
cap should rotate freely by hand in its seating