screech when first starting up in the morning - Honda Prelude Forum

kkp5006 · 02-07-2010, 08:12 PM

wHat would cause my car to make like a 1 second screech when first starting it up iin the morning>? sounds like its coming from a belt or something. anyone know what this is

dirtsean · 02-07-2010, 08:30 PM

check your alternator and ps belts, they probably aren't tight enough or are dirty.

TheJGB-2KTypeSH · 02-07-2010, 10:12 PM

It is most likely the A/C belt.

kkp5006 · 02-08-2010, 08:33 PM

Quote:

Originally Posted by TheJGB-2KTypeSH

It is most likely the A/C belt.

do you think id need to replace it or clean it? I know prestone makes like this belt spray stuff....

minilogoguy18 · 02-08-2010, 08:38 PM

^Waste of time.

Check the belt in detail for any cracking, fraying on the sides or wear of the ribs, if so then replace. If it isn't any of this just simply increase tension using the adjusters on the PS pump and alternator.

kkp5006 · 02-09-2010, 04:35 PM

Quote:

Originally Posted by minilogoguy18

^Waste of time.

Check the belt in detail for any cracking, fraying on the sides or wear of the ribs, if so then replace. If it isn't any of this just simply increase tension using the adjusters on the PS pump and alternator.

cool thanks man. sorry of this is a stupid question but is there an amount of tightening that it needs to be at or just turn the adjuster slighty>/

ike200000 · 02-10-2010, 07:50 AM

go ahead a put a few turns on. its not a very fine adjustment.

but if tightening doesn't help, you should replace it.

also, that "belt spray stuff" is called belt dressing and it does work if you happen to get dirt or other fluids on your belt and just want to clean it off to help stop the "screech" sound as a short term solution

minilogoguy18 · 02-10-2010, 09:28 AM

Yeah my belt stretched slightly after doing an engine swap which all new belts do and I just kept doing it a little bit each day until no more squeal. There is a tool to inspect belt deflection and every belt does have a recommended amount but unless your a mechanic this tool probably wouldn't be worth buying.

kkp5006 · 02-10-2010, 03:43 PM

thanks a lot guys I really appreciate the help!

kkp5006 · 02-11-2010, 02:34 PM

I turn the tension bolt clockwise right? I did that today but im worried if i did it too tight and something might break...should i be worried

ike200000 · 02-12-2010, 08:49 AM

you aren't going to blow anything up. don't worry! the belt should be tight with just a slight give to it when you pull on it with two fingers

Crazi3ge3 · 02-12-2010, 10:31 AM

mine is doing the same ****. but last night it screech for a long time and then it stop. i dont have a/c or p/s.

ike200000 · 02-12-2010, 05:50 PM

Quote:

Originally Posted by Crazi3ge3

mine is doing the same ****. but last night it screech for a long time and then it stop. i dont have a/c or p/s.

but you do have an alternator

indylude18 · 02-12-2010, 06:05 PM

Quote:

Originally Posted by kkp5006

I turn the tension bolt clockwise right? I did that today but im worried if i did it too tight and something might break...should i be worried

You can damage the bearing in the alternator if you put WAY too much tension on that belt. If you really torqued the hell out of it, you may want to back it off a bit.

Crazi3ge3 · 02-21-2010, 01:31 AM

should i change my alternator belt if it screech? It looks brand new and tight. or should i just clean my alternator?