This weekend I'm going to try and take the vacuum pump off my 85 and try it on the 84 to see if that's where the noise is coming from. The one on the 84 that seems noisy has goop all around the seal but doesn't leak the 85 must still have the O ring and there is no sign of leakage either. My question is which rod should I use in the 84 if there is no visible wear on the existing rod? Should I keep the rods with the existing pumps or the existing engines?
Thanks
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