Guest dapy Posted June 29, 2012 Report Posted June 29, 2012 Looking for advice where/how to check the operation of my R2 supercharger, and if faulty someone to fix it. Symptom is oil in the supercharger to carburetor manifold. Also there is an (unattached) hose nipple at the back of the supercharger. What is that for?
brad Posted July 1, 2012 Report Posted July 1, 2012 Looking for advice where/how to check the operation of my R2 supercharger, and if faulty someone to fix it. Symptom is oil in the supercharger to carburetor manifold. Also there is an (unattached) hose nipple at the back of the supercharger. What is that for? It can be a simple as over filling the unit, the rear seals were cast iron rings. The nipple is supposed to boost reference the fuel pump. It bleeds off pressure to in effect 'supercharge' the pumps spring pressure. There is supposed to be a line to a fitting on the top of the fuel pump diaphragm. It's there because if the boost pressure equals or exceeds the fuel pressure, the fuel stops flowing to the carburetor.
Guest dapy Posted July 1, 2012 Report Posted July 1, 2012 It can be a simple as over filling the unit, the rear seals were cast iron rings. The nipple is supposed to boost reference the fuel pump. It bleeds off pressure to in effect 'supercharge' the pumps spring pressure. There is supposed to be a line to a fitting on the top of the fuel pump diaphragm. It's there because if the boost pressure equals or exceeds the fuel pressure, the fuel stops flowing to the carburetor. Brad, Thanks. We'll check it out. In the process of doing major engine work and want to insure the blower will work correctly.
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