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Let's say you hand fitted a valve guide before installation. And then installed it. The installation process is so brutal, the valve stem would not fit afterwards.
q-authority was wise to delegate this crappy job to a professional. I wish I could afford to pay someone $70. per hour to do it.
If you knew what goes on inside machine shops and small garages on a daily basis . . . you'd crap your pants. They leave parts out. They do substandard work. Strip out bolts and threads and fix with epoxy putty. One transmission shop I knew of . . . routinely stole parts and items from customer's vehicles.
The last garage my car was in, installed a set of spark plugs that were the wrong heat range for my motor. Their mistake went the worst possible direction into a higher heat range .. . . and its an SC! Inbred morons, rejects from the TheHills have Eyes movie.
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