Help Please, engine popping?
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Help Please, engine popping?
I need your guys help I have a 1974 Ford F-100 With a 1976 Ford 302 3/4Ton Rear and Front Axles With a four speed with granny low I love this truck more than anything. When I shift through gears with a heavy foot it will pop at 45mph and if I get lucky it will pop at 55mph or 65mph going up hill is bad too pops like hell than when I floor it it pops and the speed will not go up any higher just pops like a mad man. please help me I did the timing right. I got a new timing chain and everything I spent $600 on the think I can not get it to stop poping help me please I am in need. My mother said I should sell it I told her no way! It's my baby guy she is all I got I love you to much to let her go. I would really cry if I had to get rid of this truck. please help me.
Edberg
Edberg
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I can help by mentioning to read the first post on this thread 
https://www.ford-trucks.com/forums/s...d.php?t=102632
https://www.ford-trucks.com/forums/s...d.php?t=102632
Last edited by Mil1ion; Dec 26, 2005 at 03:34 PM.
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I am assuming that the engine is popping???
That is usually the sign of an ignition problem. A bad plug, wire, dist. cap, rotor. Does it still have points or electronic ignition. It could also be a lean condition from a partially clogged fuel filter or a weak fuel pump.
That is usually the sign of an ignition problem. A bad plug, wire, dist. cap, rotor. Does it still have points or electronic ignition. It could also be a lean condition from a partially clogged fuel filter or a weak fuel pump.
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From: Louisville,Ky.
Maybe the timing chain is off a tooth. This would cause the intake valves to open too soon and cause loss of power and popping thru the carb.
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Brett Foote
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Check the firing order on the distributor, make sure it matches the firing order on the top of your intake manifold. refer to my gallery for 302 cid firing order. https://www.ford-trucks.com/user_gal...=94128&width=0
Recheck your timing, using a timing gun. Make sure to plug vacuum line at the distributor prior to setting your timing and verify that the no vacuum is present at the vacuum line will engine is running. After setting base timing, re-plug in vacuum line at the distributor housing with the engine off.
Pop off distributor cap and check for cracks on cap and check the metal probes on the bottom of cap for wear or breakages. Check rotor for wear or burn marks, Replace parts if necessary.
Check all vacuum lines for leaks, cracks, or loose connections.
Ask your dad if he lined up the timing gear marks when he replaced the timing chain.
Post your results.
Recheck your timing, using a timing gun. Make sure to plug vacuum line at the distributor prior to setting your timing and verify that the no vacuum is present at the vacuum line will engine is running. After setting base timing, re-plug in vacuum line at the distributor housing with the engine off.
Pop off distributor cap and check for cracks on cap and check the metal probes on the bottom of cap for wear or breakages. Check rotor for wear or burn marks, Replace parts if necessary.
Check all vacuum lines for leaks, cracks, or loose connections.
Ask your dad if he lined up the timing gear marks when he replaced the timing chain.
Post your results.
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Not to be too big of a jerk, but it sounds retarded doesn't it? But seriously....These guys are telling you to check the timing and that is an ok thing to do. However, you indicated that you have a point ignition. Well, you need to set the dwell before you mess with the timing. Dwell effects timing but timing doesn't effect dwell. Your dwell on the V-8 should be between 28-32 degrees. Once you have that, set your timing. Do this by unpugging the distributor vac port and put a plug in it. Set the engine RPM to about 900 RPMs and you should time this guy at about 4-6 degress before TDC for starters. You may even be able to get away with 7-10 degrees before TDC if you're lucky. Plug the vac line back in. Also, I really doubt your father put your timing gear on wrong, especially if it is a factory one. It doesn't go together very easy the wrong way.
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These specs should be close to what Bauer stated.
http://mil1ion.clubfte.com/67-72EngineTune-upSpecs.html
http://mil1ion.clubfte.com/67-72EngineTune-upSpecs.html
