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kneeslider74

11-10-2011 04:21 PM

Blower help BM250 Belt issue!

I have an alignment issue with the 16 rib belt on a BM 250. The driven and tension line up perfect but the crank alignment is off .300. The pulley is too close to the block. Is there a spacer that small I am missing?
Any tech manuals would be helpful!
Lower pulley#891330
Thanks

US1 Fountain

11-10-2011 04:50 PM

Mine had a spacer between the pulleys

MILD THUNDER

11-11-2011 05:57 AM

Are you using the proper V-belt pulley? There should be a spacer behind the Drive pulley.

ezstriper

11-11-2011 06:21 AM

Had the same issue on a weiand, the issue is merc made a few diff lower pulleys and they are all different....had to have a spacer made to get mine right..

MILD THUNDER

11-11-2011 06:50 AM

http://www.holley.com/data/Products/...9500488-00.pdf

kneeslider74

11-11-2011 01:33 PM

Got it figured out. I need a 1/4 inch spacer and then add a pin to the works of it for centering. Thanks guys!

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