I just deleted three paragraphs...... maybe I am growing up....at least a little.....

My engine may blow with the undamped pulley..... I don't know.....but I have made no claims.....

 

I hope you didn't think that my comment was directed toward you. It's just a feeling that I get from the general mood of the thread. Most of the time, I don't even check who posted and the only way I can tell who posted is by a memorable signature.

 

My point is that so far no "lab" evidence either way has been made public......there are a lot of pulleys out there working......if your going to say No....give us something substantial to go on......... were just bumblebees we don't know we can't fly.

no harm,.... no foul

 

We agree that there are no tests in favor of one position or another. The only pieces of evidence that we can point at and say that crank pullies work are the tests done by Randy, the numerous people that are currently running crank pullies, and the word of the developer of the Tritec motor who said the dampener was a BMW add-on.

As has been said before, the mileage logged by Randy and the users simply isn't enough to mean anything statistically. In addition, there have been examples of people having problems with it so who knows...

The most credible piece of evidence seems to me to be the word of the Tritec developer. We should call the guy up or something.

 

Instead of a "no" weight pulley, I just went ahead with a 4% larger, lightened (about 50%) true harmonic balancer that was originally developed by Mercedes. Because it is a clutch type ( there are weights on the inside), it was very noticeable how much smoother the engine ran at idle.

 

50% of the '02-'04 or '05-'06 crank pulley?
Where do I get one and how much is it going to put me out? Are there any other sizes?

 

A fellow Mini enthusiast and engineer, Bob Townsend, is selling these. There are about 20 or so currently on cars in the Chicago area. They are not inexpensive – $495. This is one of the reasons Mercedes is not using this design anymore.

Bob can be reached at 630-742-1200. He can also tell you what the weight difference is compared to the 02-04 pulley. My memory may need a little correction in this regard.

It is only being produced in a 4%.

 

Still have not heard back from the DINAN technical department

 

Did everyone feel that "vibration" at low RPM after the crank pulley install? I just had a 2% crank pulley installed and I am getting that "vibration" at around 2000 RPM.

 

 

Yikes!!!
Don't like the sound of that

 

I would say.

 

I've got the vibrations at around 2000 RPMs, too. Frankly, it doesn't bother me too much at this point (and I can't do anything about it until I'm back in the US and reunited with my MINI), but to begin with, you may want to check your engine mount bushings to ensure that they're securely in place. That was the first thing I was intending to do after I felt the vibrations, but never got around to taking care of it.

 

Yeah, don't worry about it. Worst case, you just replace the entire bottom end. That couldn't be too expensive.

 

It's certainly not ideal to have engine vibrations, but if I wanted the safest modding route, I would have gone the craptastic JCW route.

 

Yeah, that would have been so boring... but you would end up with a totally crappy car.

 

Touche, sir.

 

There is another component to this debat I haven't seen anyone mention and that is BMW/Mini's relationship with John Cooper Works. Allowing Dinan to create and sell a product that would directly compete with an agreement that Mini has with JCW might also be part of the "invisible equation". BMW telling Dinan you can't do this is would not be that far off from the possible.

 

Not following the logic here. Why would BMW say no to a Dinan crank pulley? They are already selling many other products that compete with JCW. And JCW don't offer a crank pulley afaik, so this wouldn't compete anyway.

 

Go read the Dinan white paper.

 

Is that an off the shelf Merc parts or something knocked up by Bob?

 

I would say to check the motor mount, especially if you have the later style. We have seen many failures - the oil leaks out. It is the mount on the passenger side that uses the 18mm nut. They can induce slight - very slight - vibrations.

 

They are being produced out in California by a firm that took over the production of the piece. Something about Mercedes selling them the rights.

I can't remember the name of the firm. Bob can fill you in.

 

I can attest to that

 

Go read post 133