Subject: Chrome bore help needed. I think (hope) mine is good
Author: Tom Formberg
Date: Feb 4, 2001, 10:38 AM
Post ID: 1705268850
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Rick,
What do your pistons look like?
Why I ask is - Last spring I had the rings in my right piston sieze in my '73
Eldo and had that barrel and piston replaced by a local dealer with a nikasil
barrel & matching piston. They also pulled the left side, said everything
looked ok and replaced the rings on that side. I check the compression after
getting the bike home and found a difference of 28# with the new right side
reading 176 and the left with new rings reading 148. So I had an old chrome
bore on the left and a new nikasil on the right. I put about 800-900 miles
on it this way and felt that I couldn't get it to run well because of the
difference in compression and also a lingering feeling that the left side
might do the same as the right side did. So I ended up pulling the left side
off to take a look at it - the barrel looked great too as far as I could
tell, but the piston showed signs of scrapping in the area above the top ring
and some very light scrapes on the skirts - so frustrated at all of this,
I've ordered and received two new nikasil barrels and pistons from MG Cycle.
I figured that whatever the dealer put on the right side was probably not
going to last and I wanted to begin all new again. I wish I would have done
this in the first place rather than taking it to this dealer for them to work
on (by the way the had the bike for 4 months!) - frustrating.
I will put my new pistons and barrels on in late March when the weather
should be getting better here and then I can take it out for a ride right
away and then go through the retourquing routine.
Regards,
Tom
'83 SP/Hedingham
'73 Eldorado
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<HTML><FONT FACE=arial,helvetica><FONT SIZE=2>Rick,
<BR>What do your pistons look like?
<BR>Why I ask is - Last spring I had the rings in my right piston sieze in my '73
<BR>Eldo and had that barrel and piston replaced by a local dealer with a nikasil
<BR>barrel & matching piston. They also pulled the left side, said everything
<BR>looked ok and replaced the rings on that side. I check the compression after
<BR>getting the bike home and found a difference of 28# with the new right side
<BR>reading 176 and the left with new rings reading 148. So I had an old chrome
<BR>bore on the left and a new nikasil on the right. I put about 800-900 miles
<BR>on it this way and felt that I couldn't get it to run well because of the
<BR>difference in compression and also a lingering feeling that the left side
<BR>might do the same as the right side did. So I ended up pulling the left side
<BR>off to take a look at it - the barrel looked great too as far as I could
<BR>tell, but the piston showed signs of scrapping in the area above the top ring
<BR>and some very light scrapes on the skirts - so frustrated at all of this,
<BR>I've ordered and received two new nikasil barrels and pistons from MG Cycle.
<BR>I figured that whatever the dealer put on the right side was probably not
<BR>going to last and I wanted to begin all new again. I wish I would have done
<BR>this in the first place rather than taking it to this dealer for them to work
<BR>on (by the way the had the bike for 4 months!) - frustrating.
<BR>I will put my new pistons and barrels on in late March when the weather
<BR>should be getting better here and then I can take it out for a ride right
<BR>away and then go through the retourquing routine.
<BR>Regards,
<BR>Tom
<BR>'83 SP/Hedingham
<BR>'73 Eldorado</FONT></HTML>
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