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09 /11/ 25, 11:44am

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Subject: Help my poor FC! Author: Jay [ Next Thread | Previous Thread | Next Message | Previous Message ] Date Posted: 09/ 15/ 02, 5:54pm Hi there, I recently purchased a 1970 BB. Great ol' bus. Already installed new brake system, new tires, new everything on the engine. (Carb, distributor, etc.) It still will not run well! After 45 minutes or so of running, it starts popping (backfiring back up through the carb) and now loses power, as if it were starved for gas. It is a 391. I have tried everything, even removing and cleaning the gas tanks. Compression tests revealed two cylinders that are lower than the rest, but not terrible. She does tend to run a little hot. Since it seems that I am in for some serious engine work (rings, heads, bearings, etc.) I was wondering if this is the best route to go? Is there perhaps a better drop-in engine that I might be able to find used? I might take this opportunity to upgrade the ol' girl's power. Has anyone out there been through this? I would appreciate any helpful comments. [ Next Thread | Previous Thread | Next Message | Previous Message ]

Replies:

[> Subject: Re: Help my poor FC! Author: Jeff [ Edit | View ] Date Posted: 09/ 18/ 02, 1:06pm Jay: It sounds like a bad ignition coil. First try replacing the condensor in the distributor. Try running it without anything on the coil except the distributor, and the ignition (battery) wire, which should be through a ballast resistor. If it still continues, you probably need an ignition coil. If disconnecting the tachometer etc. cures your problem, look for a bad capacitor, possibly a radio noise suppression capacitor or even possibly in your tachometer (unlikely). A bad condensor or capacitor usually will make your tachometer jump around while the engine is missing/backfiring, a bad coil will not. Another possibility is that you have an intake valve sticking when it gets hot. Good luck, - Jeff [ Post a Reply to This Message ]

[> Subject: Re: Help my poor FC! Author: D.R. Parisette [ Edit | View ] Date Posted: 10/ 25/ 02, 10:51pm Hi Read your message. Thought you might be interested in a Ford F-8000 that we have. It has a CAT 3208 Remanufactured Diesel (non turbo) in it. We are asking $3000. for the entire rig. If you are interested, we can send pics. Let me know. DRP [ Post a Reply to This Message ]