Help please!!!!

[FAT TONY]

64 c10 it has a 230 inline 6 with a standard 3 speed floor shift, alright now my problem is a couple days ago i was having trouble turning it on so i cranked it up and kept on pressing on the pedal and at one point i had the gas pushed all the way down and it turned on but rite after it turned on a loud grinding sound came from the engine area i went to check and it was the blades on the alternator had some how bent i guess it was the high rev that it got from the gas pedal being all the way down so i fixed that problem but coupe days after i was adjusting the valves on top and you know how messy that gets some time i think it leaked around one-two quarts of oil and i noticed that when i heard loud grinding coming from inside the engine rite away i thought oh it must have low oil but i filled it up again and the grinding sound continued and its not like constant grinding its more of every couple seconds some times it sounds loud and some times you can barley hear it but it still worries me because i don't even what to touch it till i know what it could be....... by the way the grinding noise sounds kind of like when you scrape a metal pipe on concrete , if any one has any idea of what it could be id really appreciate it

[losthope]

you sure its still not the blades on the alternator? If that was what was making the noise in the first place id start there,maybe its still bent touching every once in awhile...its hard to say what it could be just by reading its a grinding noise, bu if i couldnt pin point where the noise was coming from with the engine running i would get a mechanic's Stethoscope :http://www.google.com/products/catal...ed=0CDkQ8wIwAA and start listening at every thing the belt runs on and see it anything needs to be replaced(on old water pumps ive seen the water wheel inside be rusted and come apart good idea to replace if its a old unit just for piece of mind),alternator,water pump, etc. , then id move on to listening to valve covers and motor.

[FAT TONY]

is there a way that i can upload a video or sumting that way maybe you can see my engine running and kind of have an video of the sound it makes

[E911manager]

Hmm, alternator blades don’t just "bend" without help. How did you fix the bent blades? My first thoughts is a bearing or sleeve in the alternator is gone and is probably about to lock up. When it does your belt will smoke or just come off then your water pump stops then you are looking for a motor..

If the alternator fans had they kind of force on them then it probably got the bearing. It may have a bent shaft also. I would check your motor mounts too. The motor could be flopping around and when you revved it up it flopped into something. But something moved around and the alternator had to have hit something.

You can do the poor mans noise finder and take a wooden stick or tree branch and place one end on what you think is making the noise and the other end on your ear with your hand cushioning it. As you move the stick from place to place you should narrow down the sporadic noise to a certain location. (SAFETY BULLITAN: make sure the stick is longer than 2-3 inches or you'll get you head caught in the fan!!!), 2-3 foot should work..

[FAT TONY]

well today i am going to give it an oil change and put an lucas additive to see if it helps any and i might buy a mechanics stethoscope to because lately ive just been using a piece of hose to find the noise but its pretty hard finding the noise when i have the lifters ticking every second as well, and the alternator blades were bent out i was turning it by hand and saw that it was hitting on the bottom bolt that holds the alternator in place and i fixed that by using some pliers and bending them back straight... also i noticed that when i turn the engine by hand you can hear like a sort of sizzling sound coming from inside kind of like when you put water on a hot frying pan... also after bout ten minutes of being on when you turn it off you can hear a ticking every two seconds coming from around the valves, i don't know what that could be ether

[T2vigil]

If there is a possibility it is the alt. take the belt off and start it up and see if the sound goes away.

[old cruiser]

Originally Posted by T2vigil

If there is a possibility it is the alt. take the belt off and start it up and see if the sound goes away.

I to would try this BUT DON'T let the motor run very long as the water pump won't be running without the belt on

[FAT TONY]

Originally Posted by old cruiser

I to would try this BUT DON'T let the motor run very long as the water pump won't be running without the belt on

so what do i do i just loosen the alternator take off the belt and crank it?....... this is my first project so im barely starting to learn

[Rich 5150 69]

Originally Posted by FAT TONY

so what do i do i just loosen the alternator take off the belt and crank it?....... this is my first project so im barely starting to learn

Yes take the belt off, start truck ( not for more than five minutes ) see if noise goes away, if it does its your alternator, if not you`ll have to keep looking.

[Rich 5150 69]

Originally Posted by FAT TONY

... also i noticed that when i turn the engine by hand you can hear like a sort of sizzling sound coming from inside kind of like when you put water on a hot frying pan... also after bout ten minutes of being on when you turn it off you can hear a ticking every two seconds coming from around the valves, i don't know what that could be ether

The first condition you describe is the compression leaking past the rings when rotated by hand..... the second I surmize is the engine just cooling off.

[FAT TONY]

So with that am i going to have to buy new rings?.... and it only happens some times not all the times that i turn it by hand , and what could be the cause of the leaking?

[Rich 5150 69]

Originally Posted by FAT TONY

So with that am i going to have to buy new rings?.... and it only happens some times not all the times that i turn it by hand , and what could be the cause of the leaking?

No that would be normal....its when the piston comes up on compression stroke...compressed air has to go some place.

[FAT TONY]

true..... well tomorrow ima try that running it without the alternator but i don't think that's the grinding sound coming.... and if its not is there any other possibilities of what the grinding could be? when i started hearing it i was adjusting the valves could i have done something wrong were it made something start grinding?

[aerotruk63]

YouTube Tony! Then SHARE the link to the thread.

[FAT TONY]

ill try to get better pictures tomorrow its kinda to dark to take pictures rite now but here is one i found

[E911manager]

Yes the end should not move around. And it should be free with a small deposit. Again alternator fins don't bend unless they hit something. There should be no movement in the shaft.
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[FAT TONY]

i went out rite now and tried wiggling the shaft but i didn't feel much movement..... now when i turn on the truck without the alternator or water pup connected should i let it heat up with the alternator connected till i start hearing the sound and then take of the belt or do it while its not warmed up yet?

[E911manager]

It won't have movement with a tight belt around it. I would watch them temperature close cause you can overheat it quick with the belt off. I would say warm it up till it starts making the noise then pull the belt off and check it. But again a warm engine running with no water running through qauals blown head gaskets or worse.
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[FAT TONY]

alright i went outside on got a quick video of the trucks engine running you can hear the sound in there a couple times but its not the best quality since it was dark outside but i mainly want yall to hear the sound...... by the way .. step by step instructions on how to add a video?

[FAT TONY]

Alright here is the bad quality video but you can still kind of hear the grinding over the loud lifters ticking away

http://www.youtube.com/watch?feature...&v=s_Tcq4h6qCk

[E911manager]

It sounds like sporadic noise is the alternator. But you also have a sticking or loose lifter or maybe an exhaust leak. That tick tick ticking doesn't south right.
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[FAT TONY]

so the grinding, would i need a new alternator to stop that sound, and yea the lifters i plan on changing them soon as i get bout 40 bucks to buy some new ones but that would also mean i have to re adjust the valves any idea on the best way to do that ?

[E911manager]

Just my guess!! But I am 500 miles away!! I would google adjusting the loggers for that engine. They are all a little different
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[FAT TONY]

Originally Posted by E911manager

Just my guess!! But I am 500 miles away!! I would google adjusting the loggers for that engine. They are all a little different
Posted via Mobile Device

230 l6 with a bad noise - YouTube

you start hearing the grinding after bout two minutes

[glendale]

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