Page 1 of 1

Engine Bearings

Posted: Tue Jun 21, 2022 8:34 pm
by new to this
Are big end and main bearings the same from 1850 and TR7 ? and where's best to buy them from

Dave

Re: Engine Bearings

Posted: Tue Jun 21, 2022 8:44 pm
by xvivalve
Yes they are.

Tri-Metal are the best, look for brands such as Vandervel, Glacier AE or Clevite. I have some sizes of these on the shelf

New old stock come up from time to time on ebay, or you could chance King brand though often you'll find County brand in King boxes...

Re: Engine Bearings

Posted: Tue Jun 21, 2022 9:43 pm
by new to this
xvivalve wrote: Tue Jun 21, 2022 8:44 pm Yes they are.

Trim-Metal are the best, look for brands such as Vandervel, Glacier AE or Clevite. I have some sizes of these on the shelf

New old stock come up from time to time on ebay, or you could chance King brand though often you'll find County brand in King boxes...
Alunn

Thanks, cant see any sizes on the original bearing there VP so think they must be standard size, if you have both big ends and mains tell me know

thanks Dave

Re: Engine Bearings

Posted: Wed Jun 22, 2022 7:41 am
by new to this
Just a Quick thought can a crankshaft bend slightly but still turn okay, my reasons are number 3 big end bearing is worn a little looks as if it got warm ? and number 3 main bearing is a very loose fit in the main cap ?

All other bearings look okay ?

Dave

Re: Engine Bearings

Posted: Wed Jun 22, 2022 9:21 am
by soe8m
new to this wrote: Just a Quick thought can a crankshaft bend slightly but still turn okay, my reasons are number 3 big end bearing is worn a little looks as if it got warm ? and number 3 main bearing is a very loose fit in the main cap ?

All other bearings look okay ?

Dave
Yes and easy to correct with a big hammer.

Jeroen

Re: Engine Bearings

Posted: Thu Jun 23, 2022 7:01 pm
by xvivalve
new to this wrote: Tue Jun 21, 2022 9:43 pm
xvivalve wrote: Tue Jun 21, 2022 8:44 pm Yes they are.

Trim-Metal are the best, look for brands such as Vandervel, Glacier AE or Clevite. I have some sizes of these on the shelf

New old stock come up from time to time on ebay, or you could chance King brand though often you'll find County brand in King boxes...
Alunn

Thanks, cant see any sizes on the original bearing there VP so think they must be standard size, if you have both big ends and mains tell me know

thanks Dave
Usually oversized bearings are marked as such, some brands also mark standard as such, so it sounds as if your's are standard; if in doubt, measure the crank journal diameters. They should be 2.1260 to 2.1265 inches for the mains and 1.75 to 1.7505 inches for the crankpin.

I have Australian made BapGeon brand bearings for the big ends and Israeli made (better quality old stock) King brand for both in standard size