gotta sbc 350 in my 54 chevy and outta no where after ike hit a 30 amp fuse blew and i have a loud metal hitting metal sound every time i go to turn the key , i shimed the starter with 3 different shims and still BANG ! she wasnt under water wtf ? anybody got any input or suggestions just to point me in the right direction ? thanx !
Sounds like water in a cylinder. Pull the plugs and hit the key. Don't stand in line with the plug holes!!!
no water in cylinders and i bench taested the starter solinoid and gear still come out , im stumped !!!
Does the engine turn over at all with the starter? By hand? See if the flexplate has any movement front to back. It may have broken.
engine did turn over before with the starter just outta no where she started this bang, turned the flywheel back and forth and im still stumped !
So the engine does rotate by hand? That is good. The starter will not turn the engine over. It just makes a bang like metal on metal? I have to clarify, as you are not giving us much to go on here. Does the starter move around at all when installed, and you hit the key? I'm not talking about it turning the engine. See if it pivots at all. I ask this because I have a truck with a 454 that does the same thing, and likes to break off the nose of the starters.
Might not hurt to check the torque converter bolts. Sometimes a broken crankshaft behaves this way...at first.
it does rotate by hand , yea it makes a loud metal to metal bang but wont turn over . i shimmed the starter 3 different times and today changed the starter and still a loud bang when i turn the key i checked all my grounds and they look good, it was running fine till friday night before ike the 30 amp fuse blew for this to happen outta nowhere just has me stumped looked at the converter bolts thier there and not broken im check the rocker arms tommorrow so if thats the problem thanx yall!!
took the valve covers off rocker arm studs , push rods, valve springs everything looks good so far . im still lost any other suggestions ? next checking the ignition switch for ground problems thanx every1 for the input !
Broken around the bolt Flywheel bolts to crank, my did and it sounded like that and KNOCKED like a SOB....
Can you rotate the crank a full 360 degrees by turning the flywheel or with a socket on the dampener bolt? As Falconwagon62 suggested I'd be looking at the flexplate. You can usually shine a light up at it and look for cracks in the webs between the holes or see if it is cracked around the bolts that hold it to the crank. If you need to replace the flexplate and don't have a trans jack you can get two long 3/8 bolts (10 or 12 inches long work good) and screw them into the bottom two bellhousing bolt holes and after removing the other four belhousing bolts and taking the three converter bolts out slide the trans and converter back with a floor jack. That will give you enough room to pull the flexplate out and replace it and slide the trans right back up to the back of the block and bolt it back up. That trick will save you from having to wrestle with the trans and makes it a pretty easy one man job.
try jumping your starter...no ignition switch....direct power from starter power input with a screw driver. sometimes a starter will work fine on the bench..but will fail with engine pressure.
okay. th350. I am ***uming You can rotate the motor over by hand. If You can, remove the converter bolts and try to start it-don't let it run for long, we are simply confirming that the motor hasn't done something silly. if it does, bolt the converter back up. if it goes back to "bang!" the problem is downstream of the motor-and automatics HATE water. even a little can cause major drama. Also- check the distributor cap for water. if what You are facing is spark happening when it's not supposed to, this could be an issue as well (though the engine would typically still turn.) this could also be the source of the burned up fuse. and finally...pull all 8 plugs and spin it over by hand. it should go smooth. and whatever You do, DON'T FORCE ANYTHING.
Is it blowing the fuse for the starter? Is that the issue? I would tend to think that the starter may be grounded out internally. Throw an old starter on it to see if the sound goeas away. 30 amps is a lot of current.
My 53 did the same thing. Turn the key and "Clunk" nothing else... I didnt find it until I actually removed the negative battery cable to replace it. I didnt have a good ground on the block although it looked ok. And I would make sure you have a good ground from the block to the body also.
If the torque converter is locked up the engine will not turn over. Try starting in neutral instead of park.
what fuse did you blow? did you replace it and it blew again? what happens if you jump the starter with a screwdriver?
What 30 amp fuse is blowing? Was the car outside during Ike, and if so, did any water get into some wiring anywhere? In Ike conditions water even blows UP, so water could have gotten in pretty much anywhere. When this fuse blows, does it still "bang" when you turn the key? Maybe an octopus got blown down your cowl vent, and is lodged in your heater blower motor.......
Look for cracks in the block around the outer starter bolt hole. I had a block get a hairline crack there and it gave similar problems to the one you are describing. Allowed the starter to move just enough to not line up, make weird noises and not turn over. I fixed it by having a stud welded into that hole.
finally got to spend some time with her and found the ground from the batt was bad and the ground strap was busted so im on it today after work .... thanx to all
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