[TR] Crank shaft bearings,1965 TR4A

David P frogeye at porterscustom.com
Thu Oct 3 13:04:16 MDT 2019




-------- Forwarded Message --------
Subject: 	Re: [TR] Crank shaft bearings,1965 TR4A
Date: 	Thu, 3 Oct 2019 10:38:43 -0600
From: 	David P <frogeye at porterscustom.com>
To: 	asg123 at centurylink.net



I suspect you might be trying to avoid the effort to take the engine 
apart.... I'll say, that being the case you could have someone make 
babbet bearings that might do what you seek.... or not. Best to have the 
crank machined and buy proper bearings. The machining isn't all that 
expensive... DaveP

On 10/3/2019 9:24 AM, asg123 at centurylink.net wrote:
> Good day all.  Any experience or  recommendations for best bearings to 
> use on an old, maybe not so concentric, crankshaft.   Mechanic/ friend 
> has schooled me that a perfect, recently machined crankshaft can 
> tolerate hard bearings that will last a long time without any need to 
> conform to crankshaft irregularities.   An old out of round crank 
> needs bearing material that is somewhat malleable and can embed into 
> the irregularities but is so soft they usually don't last as long.   
> The old Clevite 77 bearings had both advantages of/embeddability/ and 
> a durable alloy.  However, it seems that those NOS bearings are now 
> unavailable  I think I read that the King Bearings are the closest to 
> them.  Thanks, Arnold
>
> **triumphs at autox.team.net  **
>
> Donate:http://www.team.net/donate.html
> Archive:http://www.team.net/pipermail/triumphs   http://www.team.net/archive
>
> Unsubscribe/Manage:http://autox.team.net/mailman/options/triumphs/frogeye@porterscustom.com

-- 
Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM. 505-352-1378 My World go here:WWW.PORTERBIKES.COM/

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/triumphs/attachments/20191003/4ced9b79/attachment.html>


More information about the Triumphs mailing list