Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Brake drums from Classic industries
#1
Got my new front drums from classic industries. ( Made in China )
They have a great finish on them and the machine work is nice.

Except they are obviously out of balance. As you spin the drum you can see ovality in the casting that causes the drum to stop in the same spot every time you spin the drum.
I measured the "cast iron ovality run out" to a exact spot on the drum with a dial indicator at .050.
That spot always spins back to 6 oclock position.

Would I look like a fool if I asked a tire shop if they could balance my drums?
If not?
Ill use sticky square wheel weights at 180 from the heavy spot until the prepencity to turn back to the 6 oclock has ended.

Forgive my misspellings ( Big words today )


Thoughts on this

Thanks
Reply Purge Spammer

#2
Stick on weights might not hold when installed like that. The centrifugal force wants to pull them off. When mounted inside the barrel of a wheel the force pushes them against the wheel. If your not worried they'll fly off and hit your qtr (of course) try it!
Reply Purge Spammer

#3
some truck shops might balance the wheels on the car. andy any advice on that ?
Reply Purge Spammer

#4
I just came in. I welded 32 grams using two washers.. and now there is no obvious imbalance and the drum never stops in the same place. I am happy and doubt anything would be noticeable at road speed at this point. Just did not want to buy and install another source of unwanted vibration......
Reply Purge Spammer

#5
I like spin balancing tires/ wheels on the car, mainly old spoke wheels cars with good results. In this case it would be a shame to rebalance tires to compensate for a poorly cast drum. Drums a d rotors are supposed to come balanced...kinda, every one I check off somewhat. Weld to the drum if needed though.
Did you notice a vibration or pedal pulsation after you put drums on? If not don't worry about it.
The Idaho Andy
I love the smell of race fuel in the morning
Reply Purge Spammer



Possibly Related Threads…
Thread Author Replies Views Last Post
  '55 Dodge brake drums dodge55 2 21,712 11-04-18, 12:08 AM
Last Post: herklots
  Brake Lights Won't Turn Off Bears-66 500 2 3,336 04-17-17, 12:01 PM
Last Post: Hibbing_Coronet_500
  Brake light gremilins Hibbing_Coronet_500 3 4,129 03-14-17, 06:16 PM
Last Post: ws27
  No residual valve on rear brakes possibly causing low brake pressure lamp? 67RTBlue 2 4,201 10-04-16, 02:22 PM
Last Post: 67RTBlue
  Brake warning light stays on 67RTBlue 7 5,610 06-10-16, 08:55 PM
Last Post: 67RTBlue
  Brake questions-power vs non, plumbing 67RTBlue 15 8,672 04-25-16, 03:05 PM
Last Post: 67r/t4speeder
  Is the firewall different on a factory power brake car? 67RTBlue 2 3,379 04-07-16, 07:57 PM
Last Post: theman440
  Brake drum/wheel stud question rlsbee 13 5,967 02-02-16, 11:45 PM
Last Post: 67440Dodge
  Brake line question-passenger side line hump or no hump? 67RTBlue 2 2,934 01-07-16, 11:12 PM
Last Post: 67440Dodge
  Disc brake conversion help! Joe mama 13 8,220 06-09-15, 07:11 PM
Last Post: Warhawkfight34

Forum Jump:


Users browsing this thread:
1 Guest(s)

Powered By MyBB, © 2002-2024 Melroy van den Berg.