easiest way to replace alt 91Q

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heywier427
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ive got the whole nose off the car and its still a pain in the butt. i can only imagine how its gonna be back together. any helpfull hints the manual says nothing of importance...and remove alt... yeah right!


Jberger
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easiest way? Pay someone else!

Seriously, it's so darn hard to get to it's worth it. I found a local import mechanic who would do side work so I let him have at it. He managed to change it from the top, replace all the belts and fan blade in 2 hours.

The guy has little hands/arms, so I think that helped a TON. I could never had gotten the thing out from the top and spending 6-8 hours on my back removing everything in the way was no way to spend a saturday.


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Raxephon
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alt = Alternator?

Or do you mean something else entirely different?

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heywier427
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Car: 91 Q45
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this has got to be by far the most uninformative part of the book. try hooking that hook (stopper nut) back on...ha. thanks for your help guys i think im gonna look for that liitle armed man in alabama

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Q451990
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Many members have glued the nut on with super glue to get it started. The "correct" way to do it (per Q45Tech) is to unbolt the a/c compressor and move it aside (the refrigerant lines flex) but I'm always scared to put tension on old rubber lines. Both alternator replacements I've done were with my dad (who conveniently has small hands).

Heath

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elwesso
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Q451990 wrote:Many members have glued the nut on with super glue to get it started. The "correct" way to do it (per Q45Tech) is to unbolt the a/c compressor and move it aside (the refrigerant lines flex) but I'm always scared to put tension on old rubber lines. Both alternator replacements I've done were with my dad (who conveniently has small hands).

Heath
heath when i took the lines out of my Q, they were sitll very flexible.....

DrewQ45
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Car: 1990 Infiniti Q45

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It's done from underneath. Remove the passenger side tension rod. Loosen the bolts on the AC compressor allowing it to hang withh lines still attached. That should give you the clearances you'll need but not much. Tough job.

...Drew....

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Q451990
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DrewQ45 wrote:Loosen the bolts on the AC compressor allowing it to hang withh lines still attached.
I think I'd still put something under the compressor or bungee cord it up to take the tension off of the crimp fittings... I cringe every time I see brake calipers dangling from a car during a brake rotor replacement.... I mean how hard is it to get a few small bungee cords? And yes, I'm the guy that actually pulls on the plug rather than yanking the cord on the vacuum cleaner.

Heath

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JedCoop
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Q451990 wrote:... I cringe every time I see brake calipers dangling from a car during a brake rotor replacement....
Do people actually do this! OMG! Or am I naive? At least with an A/C unit you aren't tempting a brake failure.

DrewQ45
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Car: 1990 Infiniti Q45

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Q451990 wrote:
I think I'd still put something under the compressor or bungee cord it up to take the tension off of the crimp fittings... I cringe every time I see brake calipers dangling from a car during a brake rotor replacement.... I mean how hard is it to get a few small bungee cords? And yes, I'm the guy that actually pulls on the plug rather than yanking the cord on the vacuum cleaner.

Heath
Yes, that's a good thing to do. It's also good to put the car on stands instead of depending on the jack, disconnect battery cables while changing alternator, install new belts... look both ways when crossing the street.... the list can go on and on.... u get my drift. The words "hang free" were meant to convey an easier method and not so much to be taken literally... Common sense must always prevail.


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