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Joined: Sep 2003
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Grease Monkey
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Grease Monkey
Joined: Sep 2003
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The harmonic balancer is made up of 2 parts,riveted together by 4 big rivets. I have some play between these parts. Is this normal or are these parts supposed to be tight together???. I hope I'm making clear. Thank you folks; Well appreciated.. Hotpockets
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Joined: Jan 2002
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ChatMaster - 2,000
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ChatMaster - 2,000
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I would say they should be tight together.
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Joined: Nov 2003
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ChatMaster - 2,000
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ChatMaster - 2,000
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if there is rubber sandwiched between the two metal pieces of the 32 chev harm balancer(like small and big block chevy engines) you can have it rebuilt. there is a guy who ads in Hemmings motor news who rebuilt the harm bal on my 32 dodge 8 cyl (couldn't find replacement for the dodge--had to have it rebuilt). before resorting to having the hemmings fella rebuild it, i tried injecting silicone between the two pieces to replace the missing rubber which had fragmented. i got about 2K miles out of my bandaid fix, then resorted to having it done professionaly. am pleased with his work. good luck, mike
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Joined: Nov 2001
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Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
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The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: Nov 2003
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Dawg: how do the 32 harmonic balancers work. i understand how the SBC and BBC balancers work with the rubber insert. are the rivets a loose fit?guess i gotta do a 32 when the 31 finished. mike
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Joined: Dec 2001
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ChatMaster - 10,000
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ChatMaster - 10,000
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maybe one is a Balancer and the other is a Balancer & Dampner?
Life's a long winding trail, love Jesus and ride a good horse!
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Joined: Nov 2001
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ChatMaster - 15,000
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I must check to be sure but I thought that the '32 balancer had rubber around the rivets and between the washers that held the two pieces together. Been wrong before so could be this time too. Once I check I will know for sure.
How Sweet the roar of a Chevy four!
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Joined: Nov 2001
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Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
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The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: Jan 2002
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ChatMaster - 25,000
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ChatMaster - 25,000
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Chevrolet info. from that time mentions leaf springs in the balancer.
There is an excellant cross section view of the 1932 and new 1933 balancer in the 1933 Engineering Features book.The outter hub is attached to the inner by the pins or rivets that show on the exterior.The springs wrap around the pin -
At the end of the description of the new heaiver 1933 balancer they note "The harmonic balancer unit is tuned to 135-150 cycles per second to reduce the amplitude of the natural frequency of the crankshaft"....thats pretty hi-tech for 1933.
Even the new more complicated balancer for 1937 uses the spring mechanism.
The 1939 info. describes "a completely new harmonic balancer" that is "floated in rubber" replacing the former which "had a flexing medium that consisted of a number of a number of small flat type springs".
After a few years the 1939-40 balancer replaced the 1937-38 when a new one was purchased thru the parts dept.
Gene Schneider
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Joined: Nov 2001
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ChatMaster - 15,000
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By golly I think he got it. I think he got it. Thanks Gene for resurrecting my memory. Looking at the ’33 Engineering features booklet helped too. Guess I had the use of the rubber-isolating layer on modern harmonic balancers too indelibly etched into my synapses. How’s that for some $ 5 words and the reference to "My Fair Gentleman"?
How Sweet the roar of a Chevy four!
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Joined: Feb 2002
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Backyard Mechanic
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Backyard Mechanic
Joined: Feb 2002
Posts: 221 |
So did the 32 balancer have springs? You said the 33 had springs.
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ChatMaster - 25,000
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ChatMaster - 25,000
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Yes, the 1932 had springs - the 1933 springs were just larger.The springs can not be seen but the four pins/washers that retain them can.
Gene Schneider
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Joined: Mar 2004
Posts: 566
Oil Can Mechanic
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Oil Can Mechanic
Joined: Mar 2004
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Does the 31 have a harmonic balancer????
Four doors are great
Hoppy
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ChatMaster - 750
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Yes Chevrolet p/n 363354 fits 1930 & 1931 all.
34 & 35 trucks are the greatest. 36 high cabs are OK too.
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Joined: Mar 2004
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Oil Can Mechanic
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Oil Can Mechanic
Joined: Mar 2004
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35 pickup man!! THANKS!!!
Four doors are great
Hoppy
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