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Original Message
Make a piston stop
By Travis Miller - 01/07/2002 1:13:55 AM; IP 152.163.206.199
In order to check if the balancer is correctly oriented, you need a way to find exact top dead center on number one cylinder. I made a piston stop out of a spark plug non-fouler adapter. I welded a long bolt through the hole in the non-fouler and ground the tip so it was not sharp as to not damage the top of the piston. After removing all the spark plugs, screw the piston stop in the number one plug hole. Turn the engine over BY HAND, not with the starter. When the piston touches the stop, mark the balancer at the timing pointer. Turn the engine over BY HAND in the other direction until the piston again touches the stop. Again mark the balancer at the stop. Measuring the distance half way between your two new marks is top dead center and should be zero on the original timing mark. If it is not, the outer ring on the balancer has slipped. If it is only off a couple degrees, adjust the pointer or remark the balancer. Once a balancer has been verified that it has not slipped, I always paint a small stripe from the outer ring to the center hub so I will be able to see if it ever does move.

I use to not believe they would slip until I watched one move on a '61 390 while I had a timing light aimed at it. I kept revving the engine, watching the timing mark and outer ring moved slowly all the way around the hub. Needless to say I replaced the balancer on that engine.
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Collapse <a href=../ForumFE/reply.aspx?ID=10463&Reply=10463><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10463" onclick="return false;">Please explain this to me.more popping 428cj</a>&nbsp;-- <font color=#0000ff>Greg, <i>01/06/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10463', contentMargin: 60, icon: $('anchor10463') }); </script>  Please explain this to me.more popping 428cj -- Greg, 01/06/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10467&Reply=10463><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10467" onclick="return false;">First, how about some info: what's the distributor ID #? [n/m]</a>&nbsp;-- <font color=#0000ff>Mr F, <i>01/06/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10467', contentMargin: 60, icon: $('anchor10467') }); </script>  First, how about some info: what's the distributor ID #? [n/m] -- Mr F, 01/06/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10471&Reply=10463><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10471" onclick="return false;"> 12127 n.m.</a>&nbsp;-- <font color=#0000ff>Greg, <i>01/06/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10471', contentMargin: 60, icon: $('anchor10471') }); </script>   12127 n.m. -- Greg, 01/06/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10475&Reply=10463><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10475" onclick="return false;">You're missing something. Read this first...</a>&nbsp;-- <font color=#0000ff>Mr F, <i>01/06/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10475', contentMargin: 60, icon: $('anchor10475') }); </script>  You're missing something. Read this first... -- Mr F, 01/06/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10478&Reply=10463><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10478" onclick="return false;"> c7AF 8C29 got it .n.m.</a>&nbsp;-- <font color=#0000ff>Greg, <i>01/06/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10478', contentMargin: 60, icon: $('anchor10478') }); </script>   c7AF 8C29 got it .n.m. -- Greg, 01/06/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10484&Reply=10463><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10484" onclick="return false;">For one thing, that's a 390 distributor - not 428CJ. [n/m]</a>&nbsp;-- <font color=#0000ff>Mr F, <i>01/07/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10484', contentMargin: 60, icon: $('anchor10484') }); </script>  For one thing, that's a 390 distributor - not 428CJ. [n/m] -- Mr F, 01/07/2002
 do you think that could be a problem? n.m. -- Greg, 01/07/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10472&Reply=10463><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10472" onclick="return false;">Did you verify....</a>&nbsp;-- <font color=#0000ff>kevin, <i>01/06/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10472', contentMargin: 60, icon: $('anchor10472') }); </script>  Did you verify.... -- kevin, 01/06/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10477&Reply=10463><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10477" onclick="return false;">how would I do that? n.m.</a>&nbsp;-- <font color=#0000ff>Greg, <i>01/06/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10477', contentMargin: 60, icon: $('anchor10477') }); </script>  how would I do that? n.m. -- Greg, 01/06/2002
Make a piston stop -- Travis Miller, 01/07/2002
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