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#59762 04/27/2006 4:39 PM | Joined: Apr 2006 Posts: 9 New Guy | | New Guy Joined: Apr 2006 Posts: 9 | I am just beginning to restore (first time)my '48 1/2 ton truck.
My question is when I begin the engine work will I find babbit bearings? | | |
#59763 04/27/2006 5:22 PM | Joined: Nov 2005 Posts: 1,048 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 1,048 | | | |
#59764 04/27/2006 6:14 PM | Joined: Feb 2003 Posts: 452 Shop Shark | | Shop Shark Joined: Feb 2003 Posts: 452 | Kip's short answer is correct. If you need bearing work done, you might find a restorer who can still pour and rework babbitt bearings, or you can find a shop that will machine your rods for inserts. Check other threads here, and use the search feature. Lots of info available.
Good luck.
Current fleet (subject to change w/o notice) \'49 GMC 3/4-Ton , 60 Austin Healey Frog-eye Sprite (some assembly required), 2011 Dodge Avenger, 2015 Jeep Cherokee. No, they don't all run. My other ride is a (B737)no, (B767)no, A320.... Update... was Embraer E190, now Boeing B787. Knowledge is a wonderful thing, but ignorance means you don't know you can't do something.
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#59765 04/27/2006 6:53 PM | Joined: Aug 2005 Posts: 6,377 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,377 | You can get a lot more mileage out of your engine if you use aluminum pistons when you rebuild your engine. The main reason the babbit goes bad is the inertial forces caused by the heavy pistons. I talked with a 39 owner who uses babbeted rods and drives 70 mph regularly with no damage because he put in aluminum pistons. I bought a set of .030 over aluminum pistons that I'm going to use when it's time to rebuild my 38.
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#59766 04/27/2006 11:04 PM | Joined: Jul 2002 Posts: 165 'Bolter | | 'Bolter Joined: Jul 2002 Posts: 165 | I have new old stock connecting rods with the standard size babbet bearing, if that is any help to you, and other NOS parts for that engine. | | |
#59767 04/28/2006 2:40 AM | Joined: Mar 2004 Posts: 3,068 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 3,068 | Make sure your engine is original first. It may have already been replaced once or twice in the last 60 years.
Scott | | |
#59768 04/29/2006 1:22 AM | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | The babbitting on the old style rods is extremely thin, not like some of the earlier motors. To restore the rods, machining for inserts is the best way. I had mine machined for inserts and I replaced the pistons with aluminum ones. | | |
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