thanks guy for fixing my valves!

[vandancouver]

wanted to say i appreciate all the help from dragster tyler, affair driven, and mike####

with all your guys input i was able to set my valve springs properly to the correct clearance, fix it, line up all my gears, and get everything working properly. you guys are the best!
thanks for helping a newbie out

 

[jr dragster T]

No probelem. What was the probelem in the end?

 

[EagleTalons]

I want to thank you guys too! Mine was valve lash needed adjustment.

 

[vandancouver]

well i didnt actually do anything to the valve adjustment clearance..i do have the tools for it. i guess im still kinda unsure how to do it..im assuming you have the crank TDC and start with one valve..insert the feeler guage between the tappet and valve..but im not sure. and is the tapper the piece that hits the crankshaft? thats what i thought it was..looks like a mini valve underneath the main valve flipped over..and the crankshaft hits it, its what moves the actual main valve up and down. im sure im not describing it well..

but the problem-

i took off the crankcase cover and the upside down valve (rocker..not sure what its called, whatever the cam hits to move the valve up n down) just fell out..so i put it back in, lined up the dots (which i dont think were lined up though) i couldnt tell because one of the gears came out with the crankcase..put it back together after cleaning the carb (it was off anyway) and it fired up first pull.

 

[jr dragster T]

The crankshaft turns the camshaft. The camshaft lifts the tappet inturn lifting the valve. The distance between the tappet (Lifter) and valve stem is verye crucial and is called Valve Lash. You set the engine to TDC and insert the feeler gauge. After you have set many engines you will get to feel the right drag on the gauge. Not too tight not too loose.

 

[mike75925]

on a flathead, how do you set the lash. looking at a busted briggs i don't see how offhand. if the lifter/tappets are worn replace em. or weak springs. i see no adjustable parts.

 

[jr dragster T]

If its worn out of spec it has to be replaced. With new Tappets you can get longer lengths so you can set your own lash. You must use a valve grinder.

 

[mike75925]

thats what i figured, coarse adjustment.

 

[jr dragster T]

A proper valve grinder is not a course ajustment.

 

[mike75925]

oh yeah, i forgot what it was, my bad. so if the components in the valve train are too open all you can do is replace them? no shimming or other things will work?

 

[jr dragster T]

I suppose you could grind it properly and use some sort of lash cap.