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Replacing the Timing Chain '64 Ford 390
Hey guys,
Pretty novice here with the motor, but I'm getting better. I've recently replaced the points and set the timing, but I am finding that the engine seems to go out of tune really fast. It will be running great one day, then I'll start it up the next and she's running rough again. My friend said that it sounds like a worn timing chain, and with 90+K I wouldn't be surprised a bit. Can anyone point me towards a good article re: timing chain replacement on a '64 ford FE 390? Thanks B |
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don't ask how i know about the magnet hanger....... |
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dist
This might seem like too easy a fix. the plate the points are mounted on will cause erratic actions from the car. Its like something is always changing, and it is. the plate can be purchased from any NAPA dealer, or just try another dist, before you tear into something you may not be able to do.
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blocks
Trying to figure out what i have got here my blocks got 352 on it but i got to reading some were that all early FE blocks has got 352 on them. Can anybody help me out. Whats the easiest way to find out by looking at it.
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I believe on a Ford FE engine you can take a spark plug out, and look straight down onto the cylinder.
Set the cylinder at TDC. Stick a piece of clean welding rod into the cylinder, straight down until you hit the piston. Make a mark on the welding rod, with a sharpie, or other felt pen. Turn the engine 180 degrees. Put the rod down the cylinder again, and make another mark. Measure the distance between the marks. About 3.5 inches, 352 or 360. About 3.78 inches, 390, 406, or 427. About 3.98 inches, 410, or 428. The 406, 410, and 427 are rare engines. 428 engines are uncommon, but they are around. There is a 427 SOHC version of the FE engine. You may find pictures of this engine, but you will probably never see one in real life. You can take a 352, bore it .050 over, use 390 pistons, a 428 crankshaft, and rods, and the 428 external balance flywheel, or flex plate, and make a 410. |
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don't mix up bolts
If you Mix up bolts , use one too long on the front of the engine it can press against the cyl wall and cause a hot spot, damage rings.
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Quote:
Also, points nowadays have mostly inferior materials and may need to be adjusted very frequently. Test the timing chain wear before you just put one in. Take out the spark plugs and start with the timing mark at "0". Turn the crank back and forth untill you feel it hit resistance and note how far you went from one direction to the next. If it is more than about 1/4", you need a chain set. The chain won't fix the problem you describe, though. |
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Vega Motor
This is a car that I built. It was just a shell when I got it. I done everything that you see here to it. Its got a 400 small block engine, bored ported and polished heads.Roller Cam set up, runs real good.
6.90s threw the 8 th mile. |
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Quote:
__________________
Artificial Intelligence is no match for Natural Stupidity Chet |
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Quote:
The points ignition on these were never very long lasting between tune ups one can only imagine what the parts quality is today. The condenser value is also important the points trade material across themselves pretty quickly when this isn't right, something else that wasn't all that good even back in the day. By now the bushings in the distributor are probably worn as well letting the shaft wander which will change the gap. None of this is to say the timing set isn't worn, a silent chain running over gears, the cam gear's teeth might even be nylon, doesn't last forever. To check the can drive get it running with the timing light on it and the vacuum advance plugged off. Rev it up a couple thousand RPM then slam the throttle shut. If the timing marks go under the base setting and back up again maybe cruising this zone a couple times; the chain and gears need replacing, for that read Crazy Larry's input, one can tell he's been there done that. Another hint is if the base timing needs resetting all the time, but this can also be fast wear on the points and or the bushings wearing out in the distributor or even the block, which isn't bushed but the distributor shaft extension rides in the block to give the bottom of the shaft support for the oil pump drive. These high mileage motors get one to many of these problems. All these blocks have a 352 number on them, other than indicating it's an FE or FT block it's meaningless information, like no one couldn't figure that out by lifting the intake manifold. That would be a good exercise over at Gold's gym. The "Mechanics Lift"; with greased hands and fingers, bend your body 90 degrees over a buck, stretch your arms full length ahead of your shoulders, then jerk 60 pounds straight up, hold and reset down without damaging a gasket set. Repeat till exhausted. Bogie |
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