312 ENG

[geraldchainsaw]

ok,  update.    the NOISE!!!!!!!!!!,     ok,  it wasn't the solid lifters,   an now its not the water pump,  its getting  costly trying to find out what the NOISE is,  ruins fine,  but that awful NOISE,   only thing left that IT MIGHT BE,  timing chain or in that area,  the guys that put the water pump in said ,it  could be a bolt some times comes loose,    i'll have that checked out later after I've saved up some of my allowance, in the mean time,  I'll drive it till it breaks down,  or what ever

[djfordmanjack]

Gerald, when was the last time you had the oil changed ? it could be a very cheap motor overhaul.

Y blocks are prone to running rich mixture. If there is too much gas in the combustion chambers it will leak down the cylinder walls and dilute the engine oil. thin oil will make the engine very loud, when hot.
The 292 in my CS is very tired and I have been working on it a lot lately. the timing gears ( cam to distributor, that is), will get so noisy, like a rattle snake. when cool with thick oil, no  noise at all.

fresh oil is always a good idea and  a cheap engine overhaul.
use good quality 20W50 with lots of zinc in it.

[geraldchainsaw]

ook,  quess I'm not done.    changed water  pumps,  noise still there,  gave it a oil change,  to 20w50,  noise still there,  today I took off belt,  noise is gone,  all I hear are the sold lifters could it be the bearings in my gen?,  I guess i could just  stop worrying an wait till it stop running,  but thats not what we do,  little things bother us,  big things we can usually fix,  getting old don't help much either.     your probly getting tried of my 57 pictures,  so,  I'll change is  jerry

[1930artdeco]

IF you took the belt off and the noise went away then it is one of three things: Gen, p/s, or A/C. Unless you are running a turbo/super charger as well. A bearing will be a higher pitched squeal. What you may be able to do is put a belt on just say the gen by itself. If the noise returns there is your culprit, if not then move to the next item.

Mike 

[djfordmanjack]

if the gen bearing is bad, you should be able to feel when turning it over. Don't forget the belt certainly will put a some load on the crank and may even cause the crank to wander, like forward/backwards or compensate for some play in the bearings.
If you are using a modern replacement water pump. who's to say that no 2 of them can go bad the same way in a short time. Just saying. the old way of trouble shooting with 'new' parts doesn't always work these days.

Did you check the pulley offset on the water pump. I just replaced a w/p on a 292 and the w/p was a used one that came from a 55 T bird. the w/p hub and pulley were at least 1/4" out to the front and the belt was offset.

[rmk57]

ook,  quess I'm not done.    changed water  pumps,  noise still there,  gave it a oil change,  to 20w50,  noise still there,  today I took off belt,  noise is gone,  all I hear are the sold lifters could it be the bearings in my gen?,  I guess i could just  stop worrying an wait till it stop running,  but thats not what we do,  little things bother us,  big things we can usually fix,  getting old don't help much either.     your probly getting tried of my 57 pictures,  so,  I'll change is  jerry

  My favourite year Mustang. 351, 390 or Cobra-Jet?

[djfordmanjack]

^x2 just visited my friends garage today with their 69.
when I was 18 I was going to tech school and there was a dealer with a black 69 FB in front of the lot. It gave me heart attacks every morning on my bus ride to school...haha

[geraldchainsaw]

Mike,  I sent u a msg,  let me kmnow if you got it,  it was quite long