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Author
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Topic: Balancing Question?
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thumpin cat
Gearhead Posts: 260
From:
Registered: Mar 2002
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posted 07-23-2003 02:33 AM
  
I got all my parts back from the machine shop after getting it balanced and i noticed that they did not open the package the piston rings are in so im thinking that they might not have balanced it. What do you think? can they balance it with out weighing the rings?
please let me know thanks
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JCQuinn@work
Gearhead Posts: 422
From: Lakewood, CO, USA
Registered: Jun 2001
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posted 07-23-2003 10:00 AM
They need to use a bob weight that equals the weight of the piston, rings, and small end of the rod. They might have had a set of rings on hand that were already open and just used them. I would call the balance shop and ask them why the ring box was not opened.John
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ted
Journeyman Posts: 27
From: Central Texas
Registered: May 2003
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posted 07-24-2003 07:25 AM
Check your balance card and see if there is a ring weight listed. If so, then I wouldn't be overly concerned other than the fact that they may have used a generic ring weight other than the ring weight you actually have. I'd call them anyhow and see what they say.I try to make it a point to always weigh the ring set that's supplied even though the same brand ring in a specified oversize is normally always the same weight. A for instance is the Sealed Power #E351K-.030 ring set that's normally always the same weight; 56 grams if memory serves me right without looking it up. Even knowing that, I still weigh the rings supplied with each job as you never know when there's going to be a manufacturing change. Between brands of rings for the same engine, there's typically a significant weight difference usually attributed to the varied oil ring designs. The same holds true for the rod bearing weights. ------------------
Ted E.
Fe's are plenty fast, but "Y"'s are fun when they run in the nines.
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