| wolfie | -- 08-17-2024 @ 7:37 PM |
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I have a 40 V8 that has a hard time with acceleration and hills. It starts easily and Idles good. I have adjusted the carburetor with no success. There has been an electronic ignition installed, but the problem is the same. The fuel filter doesn’t have sediment and the filter is fairly new. Any ideas on what the problem might be? Thanks in advance for your help!
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| carcrazy | -- 08-17-2024 @ 11:26 PM |
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The lack of enough power to climb hills or accelerate could be caused by many different issues. One or more brakes could be dragging excessively. The fuel supply may not be sufficient to provide the power required. Ignition timing may be retarded. The engine may be worn out with very low compression due to leaking piston rings or valves. Something could be restricting the flow of air into the engine or exhaust out of the engine.
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| MG | -- 08-18-2024 @ 12:59 PM |
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Slipping/worn clutch disc assembly...
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| 40cpe | -- 08-18-2024 @ 4:30 PM |
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60 HP or 85 HP?
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| wolfie | -- 08-18-2024 @ 8:40 PM |
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It’s 85 hp. The clutch isn’t slipping. It might be a fuel flow restriction.
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| trjford8 | -- 08-19-2024 @ 7:00 AM |
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If you are seeing sediment in the fuel bowl I suspect you have a junk in the gas tank. You may have a tank that sealer was put in it and now the sealer is starting to come loose or the tank is rusty inside. Remove the sending unit and look inside.
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| JayChicago | -- 08-20-2024 @ 8:15 AM |
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From the original post: “The fuel filter doesn’t have sediment and the filter is fairly new. ”
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| carcrazy | -- 08-20-2024 @ 9:04 AM |
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A couple of easy and simple tests can be done to determine why the engine lacks power. Using a vacuum gauge, check to see what the manifold vacuum reading is at idle. A healthy engine will show 19" or more at sea level. Use a compression gauge to measure the compression of each cylinder. All of the cylinders should be within about 10 PSI of each other with about 100 PSI or more for each cylinder.
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| 37RAGTOPMAN | -- 08-20-2024 @ 4:55 PM |
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MAKE SURE you have full throttle., depress the gas pedal, or place a piece of wood on the gas pedal [ or have someone push it down ] then check the carburetor linkage to make sure it is as far as it will go. also check you air filter for any dirt, HOW OLD IS THE GAS ? try driving the car with out one, to see if it make a difference, [ it might be a little clogged ] do a ggod tune up starting with a compresson test. each cylinder should be within 20 lbs of each other if it not good, try a leak down test to find out what is the problem get back to us with results, hope this helps 37 Ragtopman, Maine
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| Drbrown | -- 09-06-2024 @ 9:13 AM |
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How exactly does the engine behave when climbing hills ? Do the RPM's simply not increase or does the engine shutter/stumble like a bad spark plug, plug wire or a bad distributor condenser might do. If the indicator in your your vacuum gage rides steady the valves should be okay.
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| trjford8 | -- 09-07-2024 @ 8:25 AM |
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Just because the fuel filter does not show any residue does not mean that there is not something in the tank floating around in it that blocks or restricts the flow.
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| 51woodie | -- 09-08-2024 @ 11:19 AM |
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You never know what you will find in a fuel tank. The fuel gauge was not working when I got my '46 Coupe, so I pulled the fuel sender, and found a previous owner had used "red rubber" for a gasket. The fuel partially dissolved the gasket, causing pieces to fall into the tank. Had any of those pieces blocked the fuel pickup, it would certainly have cased troubleshooting issues.
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| ford38v8 | -- 09-08-2024 @ 12:56 PM |
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The original poster has left the building. So be it, we all continue to learn from each other's experiences. Alan
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