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Engine basics => Engine set up tips => Topic started by: Dallas Healey on September 08, 2009, 04:58:05 AM
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Can anybody recommend somebody, either is Australia or the USA, who can rebush conrods? I have an old OS 29 twin stack and two old Super Tigres (51 & 40) that are worn in the big end.
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There was a company called "RPM" (or R.P.M.) that manufactured bushed con rods for our engines. Mebee a search will turn up something...
W.
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Can anybody recommend somebody, either is Australia or the USA, who can rebush conrods? I have an old OS 29 twin stack and two old Super Tigres (51 & 40) that are worn in the big end.
I would worry that when worn out, the supporting structure might also be compromised (e.g. worn too). So there may be a strength issue.
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RPM used to make NEW ones!
W.
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You might try Mattes Engine Rework. This is a site I happened across but have no experience with their work. If they can help you out, please post result here.
Jim
http://www.flyfreeflight.com/Site/Welcome.html
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Can anybody recommend somebody, either is Australia or the USA, who can rebush conrods? I have an old OS 29 twin stack and two old Super Tigres (51 & 40) that are worn in the big end.
Dallas
Most anyone who has a small lathe can make a bushing for you, Get SAE 660 bronze, or Phosphor bronze or use a automotive bronze valve guide, You may need to buy a reamer or 2 sized near what you are working on.
Regards
Randy
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Dallas
I suggest that you talk to Herb Hanna, (Dallas Hanna) or John Goodwin (raglafart) on the forums.
Cheers, Geoff
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The first name that comes to mind is Bill Gruby, Master Machinist.
He just had surgery, but should be recovering soon. We all hope.
Clancy
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Thanx Clancy;
You make me blush.
They can be rebushed without too much trouble. The problem comes if they are worn out to one spot on their circumferance. If this has happened I have to agree with Allen, their strength has been compromised. In that case the lesser of two evils is to make a new rod. Randy is correct 660 Bronze is the stuff to use.
A good drill press and a dedicated jig and anyone can bush a rod, it is not rocket science. A lathe is better and a mill better yet.
My preferance would be a new rod, don't mess with the old ones.
"Billy G" H^^
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Thanx Clancy;
You make me blush.
They can be rebushed without too much trouble. The problem comes if they are worn out to one spot on their circumferance. If this has happened I have to agree with Allen, their strength has been compromised. In that case the lesser of two evils is to make a new rod. Randy is correct 660 Bronze is the stuff to use.
A good drill press and a dedicated jig and anyone can bush a rod, it is not rocket science. A lathe is better and a mill better yet.
My preferance would be a new rod, don't mess with the old ones.
"Billy G" H^^
Billy boy, have they fixed whats wrong with you yet or are they too late. Maybe an erector set would be in order. LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ LL~ HB~> HB~>
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Hi Leo,
Don't need to fix me, I'm already bushed. VD~ VD~ VD~ LL~ LL~ LL~
"Billy G" S?P