

| Subject: | Re: Water pump premature failure |
| From: | Dennis Haynes |
| Date: | Sun, 11 Nov 2007 19:35:40 -0500 |
Yes, the only wrong way to install the pulley is to forget the o-ring. I have yet to see one bend without breaking. If it is visibly moving in/out, then the crank is moving which means some ting happened to the thrust plate and shims behind the flywheel. It should only be able to move ~ 004". Dennis -----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Benny boy Sent: Sunday, November 11, 2007 5:22 PM To: vanagon@GERRY.VANAGON.COM Subject: Re: Water pump premature failure 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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