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Can you get a new wiring harness for the mower? It may not be much fun to install but that would restore it to working condition. If that's not in the cards, a wiring diagram, some wire and connectors and sweat will get you back up and running but I wouldn't know how to tell you how to do that...

Nearest new car dealership to me, Ford, looks like a cheesy used car lot. Very few cars at all and if there's a new car or truck on the lot, I overlooked it.

Where's it located?

It doesn't seem to matter what you want, it isn't in stock and no idea when they'll get more. I needed a cord for a Milwaukee drill, probably one of the most common they make. Out of stock everywhere on the internet with no idea of when they might be in stock again. Finally found one in a...

What's wrong with the original engine? It might be easier to fix than replace.

Applying some upward pressure to the flywheel on a vertical shaft engine is important. Doing so lifts the crankshaft up, giving the crankshaft a little bit of room for the crank to move when tapped by the hammer. Otherwise the crank just rests on the thrust bearing surface without any room to...

Once per year isn't always enough.

They'll all react to your maintenance in the same way. Don't be surprised if you cut the rings out of your next engine if you continue to fiddle with the air filter like you've been doing. Every time you remove and replace an air filter you risk damaging the pleats or the seals. Every time...

This one has run its course. Thread locked, at least for now. Thread is re-opened.

Mighty nice of you, Walt!

Out of adjustment valves do cause problems but bending pushrods is seldom (if ever) one of them. Pushrods get bent when the cam tries to open the valve farther than the valve itself can travel. This is usually caused by overheating which makes it easier for the press-fit valve guide to move...

Is your deck fixable or do you not have a deck at all? https://junkyardsnearme.net/lawn-mower-salvage-yards-near-me/

Are you sure it's a 48" deck? That's a lot of width for 10 hp.

Agree with StarTech. Tapered roller bearings' cups (the race) and cones (the bearing) have their part number on them.

Only the last two things on your bullet list are items which cause surging. That includes the 'next' steps you intend to take. Surging is a fuel/air mixture or governor issue. If the engine surges under high idle conditions (full rpm with no load), the problem is a lean mixture, usually...

You can buy individual sockets. They're not that expensive.

I'd get a second opinion.

Or put in a fuel shut-off valve and keep it closed when not using the mower.

I bought a rigid frame zero turn from a guy who gave up on it. He had hundreds of pounds of weights on it and never reached the conclusion that, if you want to turn right, pulling back on the right side does the same thing as pushing forward on the left. One of the drive tires will always be...

Trying to make up for a rigid frame on uneven ground with weights. Now it has even less weight on the front.

Then you'll have to grind your own camshafts because most close the intake slightly after BDC.

Another thing you can do is get one of those siphon-type oil changers. The only quirk about them is you need to learn how much of the oil can be taken out with them. It varies from engine to engine. To find out, start with the oil level at the full mark, then use the siphon tool to take out...

Adding a good air filter to the entire engine lineup would add cost. Unless ALL manufacturers did it, know-nothing-except-price customers would flock to the ones who can sell for less by putting a cheap filter system on their engines. P.S. We're in the wrong thread. This one is about the...

(in a raised voice) HE SAID THAT THE DONALDSON DUAL-ELEMENT AIR FILTER SYSTEM IS THE CAT'S MEOW.

The drier you keep your mower, the longer it will last. All I use is a leaf blower on the topside and a wood scraper (a door/window shim) on the underside of the deck.

It sounds like it really took a hit. You may need to have a mechanic look it over to see if any internal parts such as crankshaft or connecting rod got damaged.

This is a Woodruff "key". It's what "times" the flywheel to the crankshaft. It's made of relatively soft steel and does not like for the engine to stop suddenly. The crankshaft has magnets built in to its outer rim. When the engine rotates, the magnets pass by a coil. This generates...

Pressure washers must have a way of bleeding off pressure when the engine is running but the wand isn't spraying. It will depend upon the pressure difference between 'closed' and 'open' on the bypass valve how much the engine surges. It's not hurting anything; mine has been that way since new.

That sounds to me like your neighbor hit something that stopped the engine suddenly. It may have sheared or partially sheared the Woodruff key which locates the flywheel on the crankshaft, thus establishing the timing of the ignition.

The most effective way to get you to buy a newer product that does the same function is to discontinue critical repair parts for the old model.

A filter not only continues to do its job, it does a better job of filtering as it catches debris. With the exception of a clogged, bypassing oil filter, a new filter is actually doing the poorest job of filtering; the very best job of filtering it can do will be at the end of its life. You...

I worked with a guy who installed a WD Allis ring gear on the wrong side of the pinion. He had one forward speed and four in reverse.

Oil has been discussed to death here. Do a search. You can find a lot to read about oil; others have read about oil, talked about oil, and moved on.. Risque calendars, on the other hand....ooo La LA!

Rated? What does that mean? Does the FX filter change the fuel/air ratio? What does it to to an FR that knocks it out of calibration, or 'rating' as you put it.

Yes. Don't run it without the blower housing on.

The old Rigid Tool (how appropriately named!) calendars were definitely scantily clad but I don't remember seeing any unclad. Did I miss something?

Or has the best looking, scantily-clad bimbo.

That's why I asked if the rocker arm stud is pulling out of the head. If you can rotate the engine two full turns and the lash on that one rocker arm goes from 'correct' to completely loose, either: The rocker arm stud is pulling out of the head; Valve is not returning to a closed condition...

If you call Ariens/Gravely first, I suspect they're going to ask if you've talked to your dealer. So you might as well talk to the dealer first.

Is the rocker arm stud pulling out of the head when you rotate the engine?

Surplus Center. It varies from time to time as to what engines they have in stock but it's worth checking. You might get lucky.

Using your angle measurements, I come up with a duration of about 260 degrees, which would be a lot of a low speed engine. But those angular measurements are usually taken with the valves open a small amount. For car engines, these measurements are typically with the valve .050" off the seat...

Who's prematurely worn out an engine by choosing the "wrong" oil? I haven't, and I go back a ways.

Did he explain what adverse consequences a better air cleaning system was going to cause? Wouldn't adding a sock to the oval FR filter be a similar crime against the environment? Can I expect a visit from the Environment Police Agency soon?

How could it be, when the FX has that air filter setup?

The engine actually works a lot harder when the trigger is pulled. At least mine does.