Properly diagnosing problems

[user removed]

Originally Posted by 2000mc

well the thread seems to be more about the magic of old mechanics. They know how and why most things fail, what works, what doesn't. I remember talking to a couple of old techs when I was pretty green, they would have their old beater vehicle on the hoist to fix something. Then they would proceed to make a $0 "jerry rugging" repair, that if I attempted at that time, even with the same materials, would of failed almost immediately. somehow when the old mechanics do it, bubble gum repairs seem to last as long as the original warranty

It's not magic although I think you know that.

1-It can't beat me, no matter what I can fix it. It's a matter of how long and how much after your confidence in your abilities is absolute.

2-How can I properly diagnose the real problem with the least expense to me with a level of certainty, that means I'm willing to give away my time if I am wrong.

The point of the original post title was that the essentail component is proper diagnosis and the ability to cover the "what if that ain't it" scenario and further diagnosis, quickly and cost effectively, to insure you are right the first time, or your first attempt is a freebie.

regards
mech

[2000mc]

You're just being modest

Magic: Any sufficiently advanced skill (technology) is indistinguishable from magic.

Never made reference to your "crystal ball" in a discussion with a service advisor?

[user removed]

LOL, not many people ever called me modest.

regards
mech

[user removed]

How many people would even think to look at the front pully of an engine when diagnosing a clutch that would not disengage properly. All the pressure on the pressure plate fingers is also pushing the crankshaft toward the front of the engine,which is why thrust bearings are essential on a manual transmission, not nearly so much on an auto.

regards
mech

[ksa8907]

Nice job. Last summer I fixed my a/c, and by fixed I mean I got some parts from the junk yard and for $50 got the wrong compressor with a serpentine pulley to work with a v belt. I did have to take a chunk out of the upper engine compartment support, and custom bend some aluminum pipe.

Worked like a champ as long as you kept that belt tight.