hymoanic balancer

[geraldchainsaw]

was going for one last ride of the year,    stated it up and there was a clang noise,    turns out pulley or hymonic balancer came lose that has the timing mark on it,  found alot of plastic on the floor,  so that was as far as i got on the trip,.   now i've been working all day taken everything apart,  tomorro0w i pull the hymonic balancer off,  but now for my question,l    ihave a 312 and i need a new hymonic balancer,  any one know where i can get one?  thanks guys                  PS,   ihave to add ,   the harmonic balancer,    is in 3 pieces,  1 is the mail pulley,   then theres a plastic sleeve,  then theres a steel ring about 1/2" thick and about 1" wide, let me refase that,  the main pulley,  then theres a plastic sleeve and a steel ring over that,   any one understand what i'm saying?  another question,  why do u need the steel ring?,  all it has is the timing mark,  i don't see what its needed for,  i think it can be tosed,  whats your thougfhts?

[terry_208]

Is there a difference in the Y-block harmonic balancers? 

[geraldchainsaw]

sorry,  my knowledge of motors is zilch,   i can take them apart & put back together,  thats about it,  I don't know what a y block is,  all i know is that what i have is a 312,  i've worked on 238 flat hds and 351w,  you will have ask someone else about y blocks.   I myself don't see why a hymonic blancer is needed,  never noticed them on other motors

[gasman826]

Don't throw it out.  It can be rebuilt if a more price competitive one isn't found.

links are examples not endorsements:

https://www.damperdudes.net/harmonic-balancers/ford/ford-312-1957-thunderbird/

https://www.macsautoparts.com/store/harmonic-balancer-vibration-damper-single-sheave-272-292-and-312-v8-ford.html

[geraldchainsaw]

ok gasman,   the second listin g is the one i have,  says deiscontinuid,   what now,  who rebuilds them?,  thanks fore the info,  jerry

[geraldchainsaw]

ok gasman,  again,  i don't understand what this thing does,  other motors that i've worked on didn't have   a harmonic balancer,  is it necessary?   jerry

[thomasso]

It does exactly what its name implies.  Smooths engine vibrations that are otherwise present.  I'm sure you can run without it, but I wouldn't.  There are still a lot of Y blocks out there for parts and there are rebuilts available.  Most engines have a vibration balancer.

[KULTULZ]

Here is an easy explanation of how and why -

https://auto.howstuffworks.com/harmonic-balancer.htm

[geraldchainsaw]

thanks forall the info,    i found what i needed in a mustang forum,  one of the guys knew exactly what i needed