Hi O,
You have to crank down pretty hard on the axle nut to get it too tight. But if you put way over the spec amount of torque, the side loading on the wheel bearings could be an issue. And yes, if a bearing issue is ignored it could lead to wheel lock up but you normally hear and feel them before it comes to that point. He is trying to save you some $$$, I don't get the scare tactic, but get yourself a torque wrench and the manual. The factory spec torque is plenty fine to hold your wheel in alignment and the pin through the castle null + through the axle will keep the nut from getting loose enough for your wheel to fall off.
As far as your tune up goes... "raggedy" is a term us KY folk are pretty familiar with. lol A good guess is, your mechanic is hearing some valve tick and wants to do the valves. Other interpretations of "raggedy" may mean it just doesn't run very well and he may want to do carb cleaning, air + oil filter change and other general maintenance stuff. Either way, price seems normal for dealer services. Most of this work you can do yourself with a manual and some pretty basic tools.
1st, get a list of service items/repairs that you would be getting for $300. He may be giving you a great deal, or taking you to the cleaners. We just can't tell.
Last futzed with by csmith12; April 22nd, 2016 at 05:49 AM.
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