Lawnmower Time II

Lanse

Well-known Member
Before i buy anything, i was thinking of another soulution for my problem, i think i could get myself and an angle grinder down there without killing myself and grind 1/4 inch or so off that thing and then mabey get a bolt in there. I can get a peice of black iron pipe and cut it to size and slide that over the crankshaft itself. Hillbilly mentioned a tap and die, and, im ashamed to ask, but what is a tap and die??
 
A tap is a tool for cutting threads in a hole and a Die is for cutting threads on a rod. In other words, a tap will cut internal threads and a die will cut external threads........rw
 
Nope, pretty simple. It helps to have the right size drill bits when tapping holes to get enough threads without cutting too deep with the taps (they're real brittle). Good sets can be pretty expensive, too.

You might look into a thread "chaser" set. They're for cleaning up threads that have already been cut.

Anyway, for your situation right now, you could go to a hardware store and get the one tap you need (near the drill bits), and a t-handle for it. No need for a whole set right now.
 
You have to be careful that the pulley runs true and is fairly balanced. Otherwise your entire engine could self destruct. That pulley on the end of the crankshaft acts like another flywheel and needs to run true. A more extreme example of this is a lawn mower blade on a push mower. If the blade isn't balanced when sharpening will tear the engine apart. My dad sold mostly commercial and home owner mowers for a while as a distributor. For an experiment, they taped a quarter on one side of the blade near the end and then started the mower. The engine self destruted from the vibration. Best to make sure the shaft is good and get a new pulley. Less headaches. Dave
 
and, here is a helicoil kit. if the hole is stripped out, this kit has thread inserts, special tap to thread the stripped hole and the installation tool. you drill out the stripped hole with the correct bit for the tap, tap the hole with the supplied tap, then screw in the thread repair insert. that way, you restore the original hole size.
helicoil
 
Taps and dies are very easy to use. I had to tap the holes in my C block before re-installing the head. Worked like a charm.

What size bolt goes in that hole? You can probably buy single taps at Sears. A whole set might be pricey.
 
Yep, i guess so. That thing goes bang and im definatially not replacing it. This thing doesnt have peopose, theres no deck for it, so i just like to drive it around. I have an old snapper for mowing
 
Lanse, as John (UK) says don't be ashamed to ask it can save you a whole lot of money. If someone should say anything about that type of question I tell myself they must have had a better education as they know everything and I am learning something every day especially on this forum. I will be getting a thread chaser to clean up the threads on the head bolts before I start putting it back together.
 
its a 3/8 if i remember right. Sears looks like a good option, local hardware store doesnt deserve anyone's buissness.
 
Lanse that Carftman set is for cleaning threads.

Not for cutting threads.

Where as you can use regular tap and dies to cut as well as clean up threads.

Gary
 
lanse just run a tap up there can clean the threads up and then you will be able to start a bolt ,grinding off the crank will throw it out of balance then you will have a piece of junk to get rid of .
 
Taps and dies are fairly easy to use. When using a die you must be sure that you start it straight. When using a tap, is is necessary to clean the threads as you go. after getting started just use quarter turns and then back a half. do not try to force the tap as they are brittle. Just turn a quarter back to clearn, turn another quarter back to clean etc. Sometimes a little oil on the job helps also. Henry
 
Hey Lanse, What make of mower is this? and what model. Maybe one of us has one or knows of one in their backyard. Just put the origional back on?
 
Its a Wheelhorse Workhorse LT1100 from i believe 1986. Orignality isnt that important to me, i could get a cheap pulley with a hex screw key for less then it would cost to ship one from someone on here. Thanks for the offer though-i may need something model spsific
 
Lance,
What you have there is the drive pully and the top of the PTO clutch. If you want something to juse ride on, take all that mess off, go to
TSC, get a 1" pully with the same pully OD, with a set screw, put it on there and tighten the set screws and you are done. If you want to keep that piece on there and it is still tight on shaft, get a peice of pipe to fit shaft, get a 7/16 or 3/8 bolt, what ever size is there, it is one of the two, and fender washer,and put the pipe on the shaft. Now, make sure you have a fine thread bolt you are trying to insert in the shaft. If you do not have a fine thread bolt, that would explain why it will not thread in. Where is the lower part of the PTO and the lever that holds it all together?
Jim
 
Lanse, where are you located. Are you in Ohio? I have a shop with probably all the tools you need to make that repair. You're welcome to use them...........rw
 
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