F-350 engine problems
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F-350 engine problems
Hello,
My name is damen and I recently bought a 94 f350 with the 460 in it. It has 170525 miles on it.
It just started making a Knocking noise from the valve train on the pasengerside of the motor. Is this a common problem on the 460s?
I just replaced the alternator because it seemed like it was going out (it quit charging) but now it just seems to tweak out. When you are driving it, It will start freaking out and the motor will start bucking and kicking and the battery light comes on every time it happens, and the alternator does not seem to charge consistantly it will want to charge when you rev the motor up but at idle the charging seems to come and go same as when you drive it, and ever since I lost the alternator and replaced it, the oil pressure and the water temp both read past what the gauges say.
Any help would be great as this truck is supposed to replace my last truck which died on me, and I am working on limited funds so I can't really spend much money just replacing the parts that I think are bad
Thanks
Damen hill
My name is damen and I recently bought a 94 f350 with the 460 in it. It has 170525 miles on it.
It just started making a Knocking noise from the valve train on the pasengerside of the motor. Is this a common problem on the 460s?
I just replaced the alternator because it seemed like it was going out (it quit charging) but now it just seems to tweak out. When you are driving it, It will start freaking out and the motor will start bucking and kicking and the battery light comes on every time it happens, and the alternator does not seem to charge consistantly it will want to charge when you rev the motor up but at idle the charging seems to come and go same as when you drive it, and ever since I lost the alternator and replaced it, the oil pressure and the water temp both read past what the gauges say.
Any help would be great as this truck is supposed to replace my last truck which died on me, and I am working on limited funds so I can't really spend much money just replacing the parts that I think are bad
Thanks
Damen hill
Senior User
Joined: Apr 2005
Posts: 101
Likes: 1
From: Columbia,S.C.
my truck wasn't as violent, but when my iac went out it would only charge well, and keep a steady oil pressure reading when i had my foot slightly on the gas, should be 10.5 volts koeo to the iac, and when unpluged it should have a resistance of 7 to 13 ohms. Oil pressure should be no less than 7 psi but ideally between unloaded 25 to a loaded 50 psi. Water temp depends on the thermostat, but more than likely should be around 180 deg., though it could have a 160 or 195 deg thermostat.
Freshman User
Joined: Feb 2006
Posts: 29
Likes: 1
From: Brook IN
I'd be willing to bet its not a valvetrain noise, you're @ the right mileage where it this things pulled alot of loads thru the years, it's likely a broken piston skirt, the cylinders wear out of round and the piston rocs and eventually the skirt will break.... I'd be willing to put real money bets on it being the #4 (farthest back right side), the skirt being in peices in the pan (missing from the oil ring down), and the other 7 showing small cracks on the longest part of the skirt going towards the wrist pin.
I've got 11 460's pullin cars all over the US, and i see it all the time, and for whatever reason, 95% of the time the #4 is the 1st to come loose.
you're likely lookin @ a minimum .030 bore and a fresh bottom end, not to cheap, not too salty, but either way, it really wakes up the truck with a few other aftermarket mods.
I've got 11 460's pullin cars all over the US, and i see it all the time, and for whatever reason, 95% of the time the #4 is the 1st to come loose.
you're likely lookin @ a minimum .030 bore and a fresh bottom end, not to cheap, not too salty, but either way, it really wakes up the truck with a few other aftermarket mods.
