What brand of rod bolts do I have?

[Tippy]

**Sorry for the bad cell phone pics**

They are on my '87 3.2L. I read someone say that the 12-point nuts were not OEM, rather 6-point.

The heads show a logo and "12.9". The nuts show the logo and "14".

What brand are these?

[304065]

That strange looking B- type letter is the symbol for VERBUS

[Henry Schmidt]

Is that a nine or ten mm bolt?

[Tippy]

Originally Posted by 304065

That strange looking B- type letter is the symbol for VERBUS

I read somewhere that 12-pt is not factory. But in this thread, Engine Fasteners - Pelican Parts Technical BBS, you say Verbus is factory sruff?

Am I correct?

So these are factory rod bolts?

Originally Posted by Henry Schmidt

Is that a nine or ten mm bolt?

I would have to measure them to know for sure. They came out of my 3.2L that was rebuilt in the past.

Could the rods have been drilled for larger rod bolts? I mean, I know you can, but would the cap hold?

[Henry Schmidt]

Those nuts look like 928 rod nuts.
The 928 nut is 10mm.
It is common to grind the journals on a damaged 3.2 to fit a 3.0 connecting rod.
That would explain the nut.
I have never drilled the rod bolt holes on a 3.2/3.3 rod but I guess that could be done.
928 rod nut 928 103 172 02

[Tippy]

Crap, this may be harder to figure than I thought.

I'll get the PN of the rods up later to see if they are indeed 3.0.

Thanks Henry.

[Tippy]

The rods are 3.2 according to PN.

[Tippy]

So these are definitely not Raceware or ARP. They withstood over 9000 RPM without letting go for a data point.

[Jon B]

Cory,

Those are not VERBUS connecting rod bolts. VERBUS and INBUS are registered typeset trademarks of German hardware manufacturer ACUMENT GmbH & Co OHG. There are no registered trademark symbols for either brand. I don't know the identity of that symbol, although I've seen it before. There are several aftermarket suppliers for Porsche connecting rod bolts, some German, such as FEBI Bilstein.

[Tippy]

Thanks for the info!

Now if I could just figure out what brand they are....

[304065]

Originally Posted by Werkstatt

Cory,

Those are not VERBUS connecting rod bolts. VERBUS and INBUS are registered typeset trademarks of German hardware manufacturer ACUMENT GmbH & Co OHG. There are no registered trademark symbols for either brand. I don't know the identity of that symbol, although I've seen it before. There are several aftermarket suppliers for Porsche connecting rod bolts, some German, such as FEBI Bilstein.

I'm not sure how you reach that conclusion-- that symbol is all over every early Porsche I've ever seen-- mostly in the engine fasteners. If you look up a modern Verbus-Ripp locking nut from Acument Global Technologies (which is owned by Platinum Equity, an US-based Private Equity Firm) you will see the same headmark. I have on a different computer a graphic of that logo on the side of a box of VERBUS bolts, along with their name and identifying information, I'll post it later this week.

[Jon B]

Hi 304065,

After further research, I've identified the symbol on Cory's rod bolt as that of BAUER & SCHAURTE, the German hardware manufacturer which did in fact register the trademark VERBUS. That company later merged and was aquired by ACUMENT. So I will agree they are associated, in a similar way to Toyota, Lexus and Prius. The same? Hard to say, any more than Toyota's various brands are the same, but certainly under the same corporate umbrella.

[Tippy]

At the end of the day guys, that means they are factory one time use, correct?

[Jon B]

The trademark of BAUER & SCHUARTE, the symbol on Cory's connecting rod bolt at the top of this page...




The brand VERBUS was at one time a product of BAUER & SCHUARTE...

[304065]

Originally Posted by Werkstatt

Hi 304065,

After further research, I've identified the symbol on Cory's rod bolt as that of BAUER & SCHAURTE, the German hardware manufacturer which did in fact register the trademark VERBUS. That company later merged and was aquired by ACUMENT. So I will agree they are associated, in a similar way to Toyota, Lexus and Prius. The same? Hard to say, any more than Toyota's various brands are the same, but certainly under the same corporate umbrella.

Jon,

The Acument roll-up is a modern occurrence, it happened a few years ago. They also rolled up Cam-Car, which used to be owned by Textron, for example.

But that is not the question: the question is, who is the manufacturer of the bolt in question (really, is it a factory bolt or aftermarket). Your helpful photos below establish that it is, in fact, a VERBUS bolt. Similar bolts bearing the INBUS label can be found in the rocker shafts-- also Bauer & Scharte, Neuss.

[fredmeister]

Originally Posted by Tippy

Thanks for the info!

Now if I could just figure out what brand they are....

I had posted the same question for my 79 930 turbo. The rod bolts and 12 point nut are the same in my engine.
I wanted to know as well whether these were re-usable or do I throw them away now that I have removed the rods?
I was going to order ARP if these are not re-useable.
I think Cory's original question remains un answered.

[Jon B]

Q: "What brand of rod bolts do I have?"

A: BAUER & SCHAURTE, the same company that once manufactured the VERBUS brand. I would not suggest re-using them.

I'd respectfully disagree that these are in fact VERBUS bolts, no more than a truck with a GMC logo on the grill is in fact a Cadillac Escalade. But in this case, it's probably close enough.

[fredmeister]

Originally Posted by Werkstatt

Q: "What brand of rod bolts do I have?"

A: BAUER & SCHAURTE, the same company that once manufactured the VERBUS brand. I would not suggest re-using them.

I'd respectfully disagree that these are in fact VERBUS bolts, no more than a truck with a GMC logo on the grill is in fact a Cadillac Escalade. But in this case, it's probably close enough.

You are right, I read into his original question and assumed what he was getting at.
Anyway, you answered my question and not to re use them.

thanks,
Fred

[Tippy]

Too many variables to leave it up to chance:

1. I overevved (past 9000RPM).
2. They are not ARP or Raceware.
3. I read here that 3.2's used the 9MM (instead the previous 10MM) and that they are 1-time use.

It's kind of a no-brainer at this point to just replace but........they are roughly a 1/3 of the cost of a new Garrett GT-35R!!!!