Quote:
Originally Posted by 5Tractorguy
Once I start reaching an incline and put my foot into it, the first 1/3 or so of pedal travel makes a difference. After that if I stomp it to the boards there is no RPM change, no power change, doesn't seem to fire much harder.
Any ideas? I'm going to change my fuel filter again. Is there secondaries in these WW carburetors? If so maybe they aren't kicking in? Maybe the vacuum piston in the carb isn't working?
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I have been hauling 1500 gal of water every 4 days with my '65 5000 6X6 (also ex fire, has about 40K miles).
Going up a slight incline I make about 20 MPH. Decent incline (4% to 6%) 15 mph is tops. It seems to pull hardest at about 1600 RPM where, as you say, after the first 1/3 or 1/2 of the pedal travel, there is no more power to be had. If you wind it up to 2500 or 3K RPM, then it is more "responsive", for lack of better term.
My truck scales in just shy of 14K empty for a total GVW of 26K loaded. No matter what you do to the little 351, it's not going to light the world on fire. It will get you there no problem, but it might take awhile.
JFYI, on the 30% grade that I have to pull, I have to drop to 2nd gear in low range. At 2500 RPM, the speedo needle doesn't even come off the stop...