Bronze bushing tolerance for Connecting Rod

admin

I have a CA93200 bronze bushing that needs to be installed into a connecting rod. It is a press fit. If the hole diameter of the rod is 1.500" then what should the bronze busing OD be in order to press into the rod? I have some bushings here but can't remember what they go to and see like the right size for this rod, but want to double check.
Reply:1.500 x? i have chart around here some where bushing press fit based on the shaft dia and width of bearing its some thing like   .0025 th per 1.00x1.00PaulAnother day in paradise You only have to be smarter than the metal".   WeldiniMaking an honest living is nothing more than stealing from someone who can afford it and everyone feels good when it's over .      Weldini
Reply:Thank you for the help. The bushing is 1.50" OD x 1.30" long. It is CA93200 bronze going into a forged rod.
Reply:Well if I can what does the ID of the rod measureAnother day in paradise You only have to be smarter than the metal".   WeldiniMaking an honest living is nothing more than stealing from someone who can afford it and everyone feels good when it's over .      Weldini
Reply:First post, ID of rod 1.5", If the bushing is also 1.5" your not going to have much of a press fit if you heat the rod up a little. Put calipers on the bushing and check it.
Reply:Originally Posted by ironmangqFirst post, ID of rod 1.5", If the bushing is also 1.5" your not going to have much of a press fit if you heat the rod up a little. Put calipers on the bushing and check it.
Reply:Sorry about the confusion. I miss typed the bushing numbers.The rod ID is 1.50"The bushing is 1.510" OD by 1.300" longI can have it turned on a lathe. If it needs turning should I turn it down to 1.5025" ?
Reply:Give it .003 press fit then ream or hone the bushing back out to the 1.500 size..It will get smaller when you press it in.....zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:Originally Posted by zapsterGive it .003 press fit then ream or hone the bushing back out to the 1.500 size..It will get smaller when you press it in.....zap!
Reply:1 Turn bushing to 1.503...2 Install bushing..3 Ream/Hone bushing back to whatever the pin size is PLUS .0014 IF there is a oil hole somewhere between the bore and the pin make sure there is a hole thru the bushing for lubrication..I mis-understood the orig post but what the heck..It's been a LONNNNNNNGGGGGGG day.Sowwie about that....zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:Thank you. I wasn't clear from the start to the thread was hard to understand. Those instructions seem easy enough to follow. Would a small 120 or 240 grit brake hone be able to do the job for the ID or should I get a reamer to do it? I guess, what is your recommendation?
Reply:The hone will work just fine..Don't get carried away though..The bronze will come down faster than steel..Go with 5 second passes and check the bore each time you stop.....zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:What engine is this going in?  What is the MFG recommendations for clearance on the ID? If you hone the hole it must be perpendicular to center-line or could cause wear.Russell
Reply:Originally Posted by zapsterThe hone will work just fine..Don't get carried away though..The bronze will come down faster than steel..Go with 5 second passes and check the bore each time you stop.....zap!
Reply:Originally Posted by jones6780What engine is this going in?  What is the MFG recommendations for clearance on the ID? If you hone the hole it must be perpendicular to center-line or could cause wear.Russell
Reply:at least its an old tractor engine, they are pretty bulletproof and built to be worked on in less than ideal places with less than ideal tools. If it was something that was going to be spinning 10k rpm's id be slightly concerned
Reply:I've always sized bushings with an adjustable lapping tool and clover lapping compoundtackleexperts.comwww.necessityjigs.comhttps://www.facebook.com/groups/mach...dingequipment/
Reply:The max rpm is 2,000 RPM.I don't have one of those lapping tools, reamer, or brake hone that small. I see that the ball flex-hones are available in 80, 120, 240, 320, 400, and 600 grit. The flex-hone seems like it would work well. What would be the best grit(s) to go with? I can have the 660 bronze bored to within .001-.002" of the final measurement.
Reply:Originally Posted by ironmangqat least its an old tractor engine, they are pretty bulletproof and built to be worked on in less than ideal places with less than ideal tools. If it was something that was going to be spinning 10k rpm's id be slightly concerned
Reply:The only concern I would have with using the ball hones is that they may bell-mouth the bushing somewhat as its run in and out. Not sure if that would be the case but its a possibility.
Reply:Originally Posted by ironmangqThe only concern I would have with using the ball hones is that they may bell-mouth the bushing somewhat as its run in and out. Not sure if that would be the case but its a possibility.
Reply:Originally Posted by zapster1 Turn bushing to 1.503...2 Install bushing..3 Ream/Hone bushing back to whatever the pin size is PLUS .0014 IF there is a oil hole somewhere between the bore and the pin make sure there is a hole thru the bushing for lubrication.....zap!