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Fan belt tightness

knore

By knore,
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knore Grand Master

knore

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Recently i was getting some squeeling from loose belts on cold startups, so i got under the car and tightened the bolt, unbeknown that it was the wrong one. I later had a look and realised it was the alternator belt that was slipping. So i tightened the belt tensioner bolt on the alternator.. Squeeling fixed.

But, the bolt under the car, for the big belt.. not sure what it runs, is fairly tight.

How tight is too tight? I can push the belt a few mm, but other than that its very tight.

I tried undoing the bolt, which is how you loosen the belt, but it just screws out without moving the adjustor wheel.

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knore Grand Master

knore

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Its part of the alternator you cant miss it, just look and youll see it, the bolt is facing the body of the car not the engine. Its attached to a metal slide kind of thing so when you tighten or loosen the bolt... it pulls/pushes the alternator towards or away from the engine hence tightening the belt

crack Mentor

crack

Posted
Posted
Recently i was getting some squeeling from loose belts on cold startups, so i got under the car and tightened the bolt, unbeknown that it was the wrong one. I later had a look and realised it was the alternator belt that was slipping. So i tightened the belt tensioner bolt on the alternator.. Squeeling fixed.

But, the bolt under the car, for the big belt.. not sure what it runs, is fairly tight.  

How tight is too tight? I can push the belt a few mm, but other than that its very tight.

I tried undoing the bolt, which is how you loosen the belt, but it just screws out without moving the adjustor wheel.

tighten the belt until you have 5-7mm deflection on its longest run between pulleys

supra Community Regular

supra

Posted
Posted

Sumo: YOU are right. the only thing is that I CANNOT undo that bolt!!! it's so farken hard stuck in!!! that bolt is screwed in from the rear of car to front of car, so to undo it you go anticlockwise from the rear looking to the front, i am lifting the spanner instead of pusing down! right? it will not budge!

  • 1 month later...
  • 1 year later...
hicas_posse Community Regular

hicas_posse

Posted
Posted
Recently i was getting some squeeling from loose belts on cold startups, so i got under the car and tightened the bolt, unbeknown that it was the wrong one. I later had a look and realised it was the alternator belt that was slipping. So i tightened the belt tensioner bolt on the alternator.. Squeeling fixed.

But, the bolt under the car, for the big belt.. not sure what it runs, is fairly tight.

How tight is too tight? I can push the belt a few mm, but other than that its very tight.

I tried undoing the bolt, which is how you loosen the belt, but it just screws out without moving the adjustor wheel.

hello,there

I am sorry that I don't know any mechanical stuff but i am having squeeling noises from what i suspect to be the fan belts. This is because this happened as soon as I had the fan belts changed last week.

can anyone kindly post photos or diagrams of where the related bolts are to be tightened? thank you,everyone.

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