How do I take the pull cord wheel and spring off my Tecumseh Vantage 35 to replace it

Try SearsPartsDrect.com or PartsTreeReair Clinic

I need a picture of that clamping screw to help more

can you use a longer threaded bolt and nylox nut in its place

Tecumseh Small Engine Specifications

Make sure the spring to carb is clear ..check air filter

should be a drain plug on the bottom of the motor

sounds like the SHEAR pin is broken, replace shear pin, this can cause the timing on the motor to be off. it is designed to protect the motor from hitting a stump, a rock, etc.

The plug gap is .030 the magneto use the thinnest possible

the recoil dawgs in the cover housing are either shot or not engaging into the top starter cone

broken cord? remove bolts holding recoil housing.lift housing straight up,you may have to wiggle it a bit.turn housing over,remove any cord thats left,note how & where it connects to the spool.wind the spool [and consquently the spring under it]in the direction the cord would turn it as pulled when starting.hold spool tight.thread new cord through hole in housing.let spool turn back just enough to attach new cord.hold cord & housing,let spring "re-coil" cord slowly.check for smooth operation.replace housing.you may need to pull cord slightly to align 'square' shaft w/hole in spool.only after you are satisfied with the operation of it adjust length of cord by pushing excess cord through the handle,tie a new knot,then cut off excess,if any.

Here's an exploded view: http://www.lawnmowerparts.co.uk/partfinder_pview.asp?pID=1739

There's a picture here of your carb on a qualcast mower: http://chat.allotment.org.uk/index.php?topic=58598.0;topicseen

I hope that helps

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