# mad squeaking from the belts ???

**URL:** <https://forums.speedlife.net/t/mad-squeaking-from-the-belts/103711>\
**Category:** SON240sx Automotive\
**Created:** [February 11, 2007, 7:23pm UTC](https://forums.speedlife.net/t/mad-squeaking-from-the-belts/103711 "2007-02-11T19:23:11Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![dman](https://avatars.discourse-cdn.com/v4/letter/d/f0a364/32.png) [@dman](https://forums.speedlife.net/u/dman)\
**Post date:** [February 11, 2007, 7:23pm UTC](https://forums.speedlife.net/t/mad-squeaking-from-the-belts/103711/1 "2007-02-11T19:23:11Z")

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hey fellow members i just installed an alternator in my 1989 240sx hatch… and after i done that it squeaks very loud…sometimes its stops but then it comes back ? does anyone might know the problem… i never squeaked before i replaced the alternator …soo please help me…it bothers me soo much…thanks in advance.

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**Author:** ![roast](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/roast/32/5498_2.png) [@roast](https://forums.speedlife.net/u/roast)\
**Post date:** [February 11, 2007, 7:57pm UTC](https://forums.speedlife.net/t/mad-squeaking-from-the-belts/103711/2 "2007-02-11T19:57:59Z")

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Your alternator belts is too tight, check the FSM for proper adjustment procedure.

[http://forums.son240sx.ca/showthread.php?t=6498](http://forums.son240sx.ca/showthread.php?t=6498)

ALTERNATOR BELT ADJUSTMENT  
Application …(1) Deflection - In. (mm)  
240SX … 1/4 (6)

(1) - Deflection is with 22 lbs. (10 kg) pressure applied midway on the longest belt run.

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**Author:** ![shlammed](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@shlammed](https://forums.speedlife.net/u/shlammed)\
**Post date:** [February 11, 2007, 8:05pm UTC](https://forums.speedlife.net/t/mad-squeaking-from-the-belts/103711/3 "2007-02-11T20:05:25Z")

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or too loose… it will squeek if its too loose too. probably this over too tight… for it to squeek from to tight your fucking soemthing up… too loose the belt just slips

-Matt

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**Author:** ![mr200](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mr200/32/5495_2.png) [@mr200](https://forums.speedlife.net/u/mr200)\
**Post date:** [February 12, 2007, 8:15am UTC](https://forums.speedlife.net/t/mad-squeaking-from-the-belts/103711/4 "2007-02-12T08:15:55Z")

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Belt may be dry.

Try spitting on it

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**Author:** ![G-E](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/g-e/32/5546_2.png) [@G-E](https://forums.speedlife.net/u/G-E)\
**Post date:** [February 12, 2007, 8:54pm UTC](https://forums.speedlife.net/t/mad-squeaking-from-the-belts/103711/5 "2007-02-12T20:54:49Z")

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battery could be going and it’s always losing enough charge to put extra strain on the alternator causing it to resist more and slip… which makes it intermittent, and even if perfectly adjusted will still squeal sometimes

this was constantly happening on my p.o.s. until I upgraded from a 65a to 100a alternator… now it never happens because my battery is never low