Antique Engines and Old Iron
[Home] - [HELP] - [Forums] - [Articles] - [Photo Gallery] - [Groups] - [Chat] - [Classified Ads] - [Subscribe] - [Links] - [Books] - [Sponsors] - [Tools]

Go Back   SmokStak > SmokStak® Antique Engine Community > Antique Gas Engine Discussion > Antique Engine Archives
Forgot Password? Join Us!

Notices

Antique Engine Archives All archived posts from 1999 to 2004 when SmokStak was on EnginAds. This is a read-only board.

Antique Engine Archives

Bent Connecting Rod


I have a engine with a connecting rod that appears slightly bent in the middle of the Rod. The...

this thread has 8 replies and has been viewed 2443 times

 
 
Thread Tools Display Modes
  #1  
Old 02-27-2002, 01:38 PM
Smoke
Guest
 
Posts: n/a
Default Bent Connecting Rod

I have a engine with a connecting rod that appears slightly bent in the middle of the Rod. The engine appears to run ok. Will this cause me trouble if I leave it alone. Is it possible that I could break it if i put it in a press since its cast. Or "If its not broke, dont fix it."
Sponsored Links
  #2  
Old 02-27-2002, 04:18 PM
Norm S
Guest
 
Posts: n/a
Default Re: Bent Connecting Rod

I've had a bent rod in an engine for a long time - no trouble. I think your axiom is correct. Unless you have a U-Bolt there, leave it alone!

Norm
  #3  
Old 02-27-2002, 05:02 PM
Chuck Tx
Guest
 
Posts: n/a
Default Re: Bent Connecting Rod

You can take a forged rod , and twist the journals 90 degrees and then straighten them back again and run em with no problem ,but bending them isnt the problem , making it worse is the problem ! ;-)
  #4  
Old 02-27-2002, 05:08 PM
Bill in PA
Guest
 
Posts: n/a
Default Re: Bent Connecting Rod

I have a Friend engine with a slightly bent rod. It won't attach to the crank when the piston is in the cylinder. I plan to heat it and nudge it just a hair. Do you think that will make it worse? All help appreciated. Thanks. Bill in PA
  #5  
Old 02-27-2002, 06:37 PM
Roland Finkenbinder
Guest
 
Posts: n/a
Default Re: Bent Connecting Rod

I had an engine that had a bend right behind the wrist pin--straightened it out and the rod would not fit back on the crank journal. I think it came from the factory that way. Rebent it and put it back together and it fit fine. The cylinder was offset from the crank journal. Should have left it alone.
  #6  
Old 02-27-2002, 07:11 PM
Mark Congden
Guest
 
Posts: n/a
Default Re: Bent Connecting Rod

Years ago, an old machinist engine buddy of mine told me that some manufacturers of engines would deliberately bend the rod to fit the crankshaft as the bore and the crank weren't square to one and other.I have a vertical hopper cooled Cady that has the rod bent to fit it's crank. If the bearings fit squarely...and it's not binding...I'd leave it alone. Mark Congden
  #7  
Old 02-27-2002, 07:36 PM
Ed Kinch
Guest
 
Posts: n/a
Default Re: Bent Connecting Rod

Hello All,

If the rod does not walk back and forth when cranked, and can be easily moved back and forth on the crankshaft and wrist pin, it probably is not bend.The two centers would be in alignment.

Ed Kinch
  #8  
Old 02-27-2002, 09:10 PM
Kevin Bandy
Guest
 
Posts: n/a
Default Re: Bent Connecting Rod

My Rockford connecting rod is slightly bent in the middle and has been that why since my grandfather bought it in the 1930's. Runs fine.


Kevin's Old Iron
  #9  
Old 02-28-2002, 09:03 AM
Bill in PA
Guest
 
Posts: n/a
Default Re: Bent Connecting Rod

Mark, do you have a picture of that Cady that you could post? I have a Cady marine engine. Just wondering if it is the same company and what the differences are. Bill in PA
 


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

F o r u m Jump

Similar Threads Chosen at Random
Thread Thread Starter F o r u m Replies Last Post
Bent Rod? Frank P Onan Generators 15 04-05-2006 10:28 PM
bent crank grub54891 Machine Shop and Tool Talk 4 03-28-2006 10:49 PM
bent carb Marty Antique Engine Archives 8 12-01-2002 08:24 PM
Bent crankshaft farmerje Antique Engine Archives 19 09-24-2002 11:18 PM
Bent Wheels Paul Spence Antique Engine Archives 18 03-17-2002 01:51 PM


All times are GMT -4. The time now is 04:50 AM.

Smokstak and Enginads site search!


All use is subject to our TERMS OF SERVICE
SMOKSTAK® is a Registered Trade Mark
A Community of Antique Engine Enthusiasts
Copyright © 2000 - 2014 by Harry Matthews
P.O. Box 5612 - Sarasota, FL 34277