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Date:         Sun, 11 Nov 2007 17:22:01 -0500
Reply-To:     Benny boy <huotb@VIDEOTRON.CA>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Benny boy <huotb@VIDEOTRON.CA>
Subject:      Re: Water pump premature failure
Comments: To: Geza Polony <gezapolony@SBCGLOBAL.NET>

Everything is pretty straight foward around that pulley.

Was that pulley "out of whack" when you got the van/engine? did you ever notice? if something as just started lately, that big bolt is loose, if not, it as been like that for a wile and you never noticed!

There is no way that pulley will go bad if nothing happen.

If it as been like that for a wile, it was simply wrongly installed, it was force in and the key/groove were not align properly, to do so, you must be drunk :-) There is nothing to it, align pulley, bolt it in. I never use a torque wrench, i always use my impact gun for this one. As to belt, again, there is nothing there. just leave some loose, i mean you should be able to move this one up and down about 1/2 in, or better, you should be able to twist this one 180deg (even more) EASILY.

No, if that pulley is really offset, go see a mechanic before this one spin out an/or break the cranshaft!!! i have seen that happen, not pretty.

Ben

On Sun, 11 Nov 2007 12:47:38 -0500, Geza Polony <gezapolony@SBCGLOBAL.NET> wrote:

>It's those "nasty belt oscillations" that I'm worried about. This is >definitely a 3-groove pulley, and it's definitely out of whack, at least >horizontally. I certainly have never removed the pulley on this VWoC >remanufactured engine, but maybe the PO did for some reason. It doesn't look >like the kind of thing you'd do for fun. > >I'll try tightening the belt down some more but I've always been afraid of >killing the bearings that way. Both Bentley and Haynes are near useless on >this point: the belt is supposed to deflect 10-15mm when pressing "firmly" >with thumb, but what does "firmly" mean? Arnold says one thing, Maria >another. Vast difference. > >Yeah, this is a primitive design, with the alt/wp belt contacting maybe 20% >of the drive pulley. It seems like to make it work you have to tighten the >belts way more than you would with greater contact surface, leading >to...premature bearing failure. I bet some ingenious guy could come up with >an idler system that would help us out. Any takers?


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