Waterpump causing intermittent belt screech?

[skydragoness]

Here's the thread in the KA forum, I had one hell of a reply so I'm wondering if I can get some better ones in this forum.

zerothread?id=145977

I think the waterpump is still factory, from the blue rtv, it's not leaking at all. So I think i am going to replace it anyway, since i have 102k on the odo.

[The Mic]

Yeah, I'd go ahead with replacing the water pump since you've already tried tightening the water pump belt.

Turn the water pump belt pulley by hand and listen for any unusual noises. Any odd noises would definitely point to a worn out bearing.

[skydragoness]

Thanks. I'm going to check on it tonight, by checking the pulleys. Funny thing is how intermittent the noise is. I drove my car around all over town today and not once did it make a noise. So strange.

[NISTECH]

How do you know its the water pump belt squeeking?

[PoorManQ45]

Either the belt itself is slipping, or the bearing with drying out

[skydragoness]

Turns out the alternator belt was loose also. Hasn't squealed yet since i tightned it. Is it normal for this to happen? Belts to just loosen themselves?They are new Nissan belts that were put on in Sept. First time I've heard them squeal till now. Oh well. Problem solved.

[PoorManQ45]

It may have strecthed out.

Might be time to change it

[NISTECH]

Sky alotta times they are not installed with the correct deflection initially as techs are worried they are to tight. It happens on 300z's like your B/F's car quite frequently as the initial deflection setting is very tight since the belts have not softened from use. So in your case a broken in belt setting was likely used during the initial install of new belts. Resetting the belt deflection is expected when that happens. I figure if your like everyone else here you just ignored PMQ's advice? So telling you you dont need belts already isnt neccesary right?

[skydragoness]

Hah. Well yes, of course I ignored him.As far as the deflection, my bf put the belts on for me before he became a tech. Do Nissan techs use special measuring tools for figuring out the FSM deflection specs? I think most techs just go for what 'feels right'

I'm just glad it's not my waterpump, it's still oem, but the seals are dry as a bone and there isn't any pulley noise and x-mas is coming so i have to spend $ on people instead of my car (sigh).

[PoorManQ45]

Why did you ignore me?

Nistech: define deflection please, in the context that you're using it if you could

[PoorManQ45]

I think most techs just go for what 'feels right'

Put it on there, don't tighten it much, just enough to keep it on there. Start the engine. At first it should squel a little bit, then it'll tighten up in a few seconds and stop squeling

[The Mic]

Why did you ignore me?

Nistech: define deflection please, in the context that you're using it if you could

Yay lets all play the silent treatment game with PMQ

[NISTECH]

Hah. Well yes, of course I ignored him.As far as the deflection, my bf put the belts on for me before he became a tech. Do Nissan techs use special measuring tools for figuring out the FSM deflection specs? I think most techs just go for what 'feels right'

I'm just glad it's not my waterpump, it's still oem, but the seals are dry as a bone and there isn't any pulley noise and x-mas is coming so i have to spend $ on people instead of my car (sigh).

Yea we dont use a tool although there is one. We pretty much get a feel for it from experiance. Initially I use to only tighten it up to have ~ 3/4 inch deflection but learned some of the cars require a slightly tighter setting to prevent them from squeeling once they break in.