match weighing pistons
Moderator: sparkmaster1
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match weighing pistons
HI
I have just weighed my pistons and the difference is 0.3g. I have also matched the pins, clips and rings and as a complete unit i can get them all within 0.4g.
it is the 1 of the pins that is where the difference is 1.5g, Is it advisable to remove material from the ID of the pin?
Cheers
I have just weighed my pistons and the difference is 0.3g. I have also matched the pins, clips and rings and as a complete unit i can get them all within 0.4g.
it is the 1 of the pins that is where the difference is 1.5g, Is it advisable to remove material from the ID of the pin?
Cheers
- Piledriver
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Re: match weighing pistons
Yes.
I, for one, regularly embrace our new robot overlords, as I am the guy fixing the robots...
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Re: match weighing pistons
I think "where is also in the picture too. In the wrong place you could have problems. I remember hearing this being a problem years ago and I think things haven't changed that much.
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Re: match weighing pistons
I would of thought through the hole at each end so it's equal?Ol'fogasaurus wrote:I think "where is also in the picture too. In the wrong place you could have problems. I remember hearing this being a problem years ago and I think things haven't changed that much.
I am confused that the total mass I can get equal but would still need to do the pin.
- Piledriver
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Re: match weighing pistons
Sometimes there is a bit of flash in the middle you can smooth out, but the weight needs to come off the ends.
I, for one, regularly embrace our new robot overlords, as I am the guy fixing the robots...
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Re: match weighing pistons
Thank you Pile. I still have my "think about it" habit from being a "checker/mentor" of others work for over 30 years. I point out something and if they find the answer themselves they are more apt to remember it than if I give them the answer. Sorry!
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Re: match weighing pistons
I did a quick search on balancing and got a great answer from Eaton:
http://www.eatonbalancing.com/blog/2007 ... ng-part-3/
Here are some more I found. There is a lot of info, including videos, depending on how you word the search:
http://aircooledtech.com/balancing/
viewtopic.php?t=124244
http://aircooledtech.com/balancing/
http://www.shoptalkforums.com/viewtopic.php?t=42324
Also remember that taking weight from the wrong place can weaken the piston catastrophically.
http://www.eatonbalancing.com/blog/2007 ... ng-part-3/
Here are some more I found. There is a lot of info, including videos, depending on how you word the search:
http://aircooledtech.com/balancing/
viewtopic.php?t=124244
http://aircooledtech.com/balancing/
http://www.shoptalkforums.com/viewtopic.php?t=42324
Also remember that taking weight from the wrong place can weaken the piston catastrophically.
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- Posts: 16
- Joined: Thu Mar 04, 2010 5:18 am
Re: match weighing pistons
Thanks, that info at Eaton is great.
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Re: match weighing pistons
Crisis over, I re weighed on 2 different scales today and the original weights were incorrect! Now I'm lucky enough to have access to a laboratory with plenty of weighing equipment not £15 kitchen scales but these cost between £700-2500. So all good now.
Thanks for your help.
Thanks for your help.