|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
08-12-2013, 04:44 PM | #21 |
Member
Join Date: May 2010
Location: Carleton Michigan
Posts: 34
|
Re: Babbitt or inserts
I have Babbitt, Schwalm's did the work. More than happy with what I have and will probably last longer than me. Just my 2 cents.
Hank |
08-12-2013, 06:49 PM | #22 |
Senior Member
Join Date: May 2010
Location: Kalamazoo
Posts: 1,656
|
Re: Babbitt or inserts
If factory poured babbit were still an option, this would be a no brainer, BUT it's not and it never will be. My understanding is that the technology of getting a durable product is not trivial; some guy's garage operation--no matter how well intentioned and researched--may or may not be OK--it's a crap shoot. I've replaced enough bad rebuilds that I'm not interesting in unnecessary gambles.
Did you know that the actual bearing contact surface in inserts is Babbitt? |
Sponsored Links (Register now to hide all advertisements) |
|
08-12-2013, 07:40 PM | #23 |
Senior Member
Join Date: Jan 2011
Location: Central Me.
Posts: 260
|
Re: Babbitt or inserts
I think you will find that the contact area on modern engine bearings is an alloy of aluminum. Ron W
|
08-12-2013, 09:07 PM | #24 |
Senior Member
Join Date: May 2010
Location: Kalamazoo
Posts: 1,656
|
Re: Babbitt or inserts
Thanks for the update correction. It is true, isn't it, that for many years the shells were lined with Babbitt? The lore was that because this lining was so thin, it was essential to use an oil filter, since, unlike poured Babbitt, it could not embed small metal fragments out of harm's way.
|
08-12-2013, 09:30 PM | #25 | |
Senior Member
Join Date: May 2010
Location: Asheville,NC
Posts: 3,104
|
Re: Babbitt or inserts
Quote:
__________________
http://www.model-a-ford-4bangers.com/ |
|
08-13-2013, 08:54 AM | #26 | |
Senior Member
Join Date: May 2010
Location: Kalamazoo
Posts: 1,656
|
Re: Babbitt or inserts
Sponsored Links (Register now to hide all advertisements)
Quote:
I don't know what you mean. Steve Everyone, Here's a segment from what Wikipedia has to say about Babbitt that may be of interest: Modern Babbitt bearings[edit] Until the mid-1950s, poured Babbitt bearings were common in automotive applications. The Babbitt was poured into the block or caps using a form. Tin-based Babbitts were used as they could stand up to the impact loads found on the connecting rods and crankshaft. The poured Babbitt bearings were kept thin. The rods and caps would have shims that could be peeled off as the Babbitt wore. Ford was known to use two .002" on each cap and Babbitt that was 86% tin, 7% copper, 7% antimony (see the KRW catalogs for the Model T). Steel shims were used as the brass shims used today tend to compress over time contributing to shorter bearing life. The poured Babbitt bearings commonly get over 50,000 miles of use before needing replacement. Poured Babbitt bearings are also known to fail gracefully allowing the car to be driven for extended periods of time. The failed bearing is not likely to damage the crankshaft. In more modern practice, the crankshaft and connecting rod big end bearings in a modern automobile engine are made of a replaceable steel shell, keyed to the bearing caps. The inner surface of the steel shell is plated with a coating of bronze which is in turn coated with a thin layer of Babbitt metal as the bearing surface. |
|
08-13-2013, 11:51 AM | #27 |
Senior Member
Join Date: Jan 2011
Location: Central Me.
Posts: 260
|
Re: Babbitt or inserts
Jim may have mistakingly thought you ment metal to metal contact. Let's hope not too much! Certainly, there is contact with oil and possibly dirt or other crud that can cause some wear on the "contact" surfaces. BTW,I also use Inserts. Ron W
|
08-13-2013, 12:51 PM | #28 |
Member
Join Date: Aug 2012
Location: Otter Lake MI
Posts: 61
|
Re: Babbitt or inserts
Like Henry made them!
KISS principle (Keep it simple stupid) Mark |
08-13-2013, 07:40 PM | #29 |
Senior Member
Join Date: Jan 2011
Location: Central Me.
Posts: 260
|
Re: Babbitt or inserts
Some may be interrested in this from Federal Mogal.
"The Future is Aluminum Overplated copper-lead (“tri-metal”) has been the dominant engine bearing material for the past 20 years. But no longer. Over time, major domestic and overseas engine manufacturers have virtually eliminated it from their designs. And in the aftermarket, leading engine builders are phasing it out as well. The reason! A new breakthrough in engine bearing technology. Sealed Power A-Series engine bearings with aluminum-silicon bi-metal alloy. A-Series’ bi-metal alloy delivers greater seizure resistance than tri-metal materials, while dramatically reducing or eliminating bearing wear in a wide range of automotive and truck engines." Ron W |
08-14-2013, 05:53 AM | #30 | |
Senior Member
Join Date: May 2010
Location: Asheville,NC
Posts: 3,104
|
Re: Babbitt or inserts
Quote:
BTW, Wikipedia is not the end all, be all. It is simply a place for people with opinions to have a voice and sometimes contains wrong or incomplete information.
__________________
http://www.model-a-ford-4bangers.com/ |
|
08-14-2013, 08:09 AM | #31 | |
Senior Member
Join Date: May 2010
Location: Auburn, MA
Posts: 2,106
|
Re: Babbitt or inserts
Quote:
__________________
“The technique of infamy is to start two lies at once and get people arguing heatedly over which is true.” ~ Ezra Pound |
|
08-14-2013, 09:36 AM | #32 | |
Senior Member
Join Date: May 2010
Location: Kalamazoo
Posts: 1,656
|
Re: Babbitt or inserts
Quote:
I agree that Wikipedia entries might simply be one person's opinion. But, I think there's a good chance that if something far out has been stated, attempts will have been made to either correct it or describe the controversy. I have found it to be pretty good in areas that I do know something about. |
|
|
|
Sponsored Links (Register now to hide all advertisements) |
|