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Americanrider · 01-11-2006, 06:03 PM

I just finished a rebuild on my outter heater box. When I pulled the motor/fan assembly I found that the cage fan had a few broken (plastic) blades from sticks & garbage falling through the cowl. I stuck a garden hose down each side of the cowling a flushed out years worth of pine needles, mud & leaves. I lubed the inner cable and flappers and sealed the box to the fiewall w/Black RTV. Used a motor/fan assy from a non-AC '76 GMC truck I parted out since it had a metal cage fan, it was a perfect fit and everything works better now.
The SBC Heater Hose route is Water pump to Top, Manifold to Bottom

01-11-2006, 06:03 PM	#8
Americanrider Registered User Join Date: Dec 2004 Location: NW, WA. Posts: 1,421	Re: how can i get more heat I just finished a rebuild on my outter heater box. When I pulled the motor/fan assembly I found that the cage fan had a few broken (plastic) blades from sticks & garbage falling through the cowl. I stuck a garden hose down each side of the cowling a flushed out years worth of pine needles, mud & leaves. I lubed the inner cable and flappers and sealed the box to the fiewall w/Black RTV. Used a motor/fan assy from a non-AC '76 GMC truck I parted out since it had a metal cage fan, it was a perfect fit and everything works better now. The SBC Heater Hose route is Water pump to Top, Manifold to Bottom Attached Images Last edited by Americanrider; 01-11-2006 at 06:06 PM.