Main bearings
Turbo Mini Forums

Are these the late type with a non groved half?

http://www.minispares.com/Product.aspx?pid=38593

Terry

website:- http://www.terryhunt.co.uk

Yup!

I believe the lower one is plain.....I'm learning slowly :)

thats correct milamber

these btm plain bearings give 80% more load bearing ....... so they say (leyland engineers)

OK Thanks lads..

website:- http://www.terryhunt.co.uk

Can't quite see where the 80% more load bearing capacity comes from.
Could it be another urban myth.
Perhaps it could have been that the grooved bearing has 80% of the capacity of the non grooved bearing? ie 25% more load bearing capacity. seems more likely.
Regards
Dave

Don't want to sound stupid, but doesn't the old style give better protection at startup due to the groove?

so the older grooved type gives more wear protection but the later non-grooved give better load protection?

if thats so then that would put the later ones more at home on a high revving engine and because there is not as much load on a low revving engine like a turbo then it would be more suited to the later type as they would last longer as they wear better?

or am i barking up the wrong tree, in the wrong street in the wrong country?

I can see your logic there mini_majic
Thats why I didn't want to sound silly with my last comment. For competition use, where the engine is in bits half the time it doesn't matter. For road use, using the early type might be better.

The plain ones are NO GOOD in a high revving engine if the crank hasn't got x-drilled mains.

got x-drilled mains on mine.
For a road car, was just thinking that grooved will hold oil better when engine is off. It is starting & stopping that causes alot of wear. Again...I might be talking crap. :(
Just thinking of reliabilty rather than performance here.

Edited by Jason G on 17th Dec, 2007.

Edited by fastcarl on 17th Dec, 2007.

WWW.FORCE-RACING.CO.UK PLEASE CLICK HERE

few so my brain does sort of work im with you on the whole thinking of reliability with this one milamber. i will be using mine everyday so will need reliability.

will go with x-drilled as well just to add to it.

Another thing...Don't Federal Mogul own Vandervell or vice versa?????

Edit: Ignore that, answered my own question. Its states that on Avonbar website!

Edited by Jason G on 17th Dec, 2007.

WWW.FORCE-RACING.CO.UK PLEASE CLICK HERE

lol...fairplay carl!

Edited by Vegard on 18th Dec, 2007.

Whats God got to do with it?

If it was down to God, he would have invented a five bearing A series and we wouldnt be in this predicament.