Let's have a discussion about type IV bearing Options

[Jake Raby]

The fact is the current producers have ZERO mandates for a TIV bearing from an engine manufacturer.. What does this mean? They can make them to whtever specifications they want from whatever material compositions and they'll still sell.

Thats why I feel the ultimate solution is to use a modern bearing. Nothing I'd like to do better than tell these batards to kiss our asses, because they don't give a damn about us..

Instead of conforming to what we are supplied, I'd rather make use of something else thats more superior anyway. Here we saw this coming, stopped sales immediately and have enough to last us a while.

Remember: Lots of Type 1 race engines use TIV bearing sets. I am SURE that someone from that part of the industry will have bearings made in some 3rd world country and they'll have zero development work before being sold to the unsuspecting consumers... Thats what that crowd does.

Mark, Guys like you and I are in the minority, not enough people respect quality enough to spend the required amount for a proper bearing, or proper materials and thats why this following is commiting suicide on a daily basis.

[realred914]

The fact is the current producers have ZERO mandates for a TIV bearing from an engine manufacturer.. What does this mean? They can make them to whtever specifications they want from whatever material compositions and they'll still sell.

Thats why I feel the ultimate solution is to use a modern bearing. Nothing I'd like to do better than tell these batards to kiss our asses, because they don't give a damn about us..

Instead of conforming to what we are supplied, I'd rather make use of something else thats more superior anyway. Here we saw this coming, stopped sales immediately and have enough to last us a while.

Remember: Lots of Type 1 race engines use TIV bearing sets. I am SURE that someone from that part of the industry will have bearings made in some 3rd world country and they'll have zero development work before being sold to the unsuspecting consumers... Thats what that crowd does.

Mark, Guys like you and I are in the minority, not enough people respect quality enough to spend the required amount for a proper bearing, or proper materials and thats why this following is commiting suicide on a daily basis.

jake:

what are teh differences between a modern bearing and the standard type IV stock bearings?

[McMark]

Dave, I think the point is modern bearings vs. crappy reproductions of stock.

Not modern vs. stock. Stock is the obvious choice there...

[rick 918-S]

Think before we discuss what bearing are being transformed into I'm wondering if there is any difference in the Silverline - Mexico bearings and the Mahle/ Kolbenschmidt company bearing that I guess are currently available.

[raw1298]

I checked my parts stash in my garage and found a set of Mahls that are .25 and a set of Kolbenschmidt that are standard. Are these the same for all engine size or are they specific for a 1.7, etc.?

[Jake Raby]

Rick,
Yes there is a difference in those bearings. The Silverline bearings are "less than acceptable". I'd rather reuse old bearings as use Silverline bearings..

BTW- "Stock" no longer exists with any othe oparts bought today for these engines.

All Type 4 engines from the beginning of production, through the very last unit built use the same main bearings, no matter the size of the engine.

This post has been edited by Jake Raby: Nov 21 2010, 06:39 PM

[Mark Henry]

I've tried several sets of silverline's on type one engines....each and every set ended up in the trash bin.

From rods that would stick to cranks that just didn't feel smooth. Garbage.

[914Sixer]

I just ordered 2 sets of Koblenschmidt main bearings this morning. I am now interested in what shows up.

[raw1298]

I looked at both sets to see how they differ. The Mahles are better made and have more weight to the set. They feel more solid built.

[Jake Raby]

Mahle owns Bolbenschmidt and has since 1999.

I bet your KS bearings come in a package that say "Made in Brazil, repackaged in Germany"

[realred914]

Mahle owns Bolbenschmidt and has since 1999.

I bet your KS bearings come in a package that say "Made in Brazil, repackaged in Germany"

Jake:

what makes the differeance in quality of the old original style bearings and the reproduction ones? What difference are there between the new modern bearings and the original type? could it be material differances? design? tolerances that are different?