1969 E-950 Firetruck Bogging at high RPM

ffdzeke · 09-18-2007, 09:25 PM

My firetruck, 564 Cubic Inch V-8, Manual Transmission, loses power and backfires at higher RPM. Any suggestions for remedying the situation?

taillight · 09-19-2007, 11:15 AM

Check the timing and make sure it is advancing. Check the fuel pressure and volume. You might be running out of fuel.

ffdzeke · 09-19-2007, 06:30 PM

Thanks friend, I will give it a shot

Davescort97 · 09-24-2007, 11:23 PM

Check your ignition wires. A good time to do it is at night. If they are bad you will see them arcing to ground. A fuel starvation will not make it back fire. If it is old enough (pre-75) the condenser on the ignition may be bad.

ffdzeke · 01-22-2008, 06:42 PM

Thank you all for your suggestions.

iselinzilla · 08-19-2008, 10:39 PM

My first impression is that the timing chain is very loose or even jumped a tooth.

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