ROG100

I am pretty sure the later cam gears 85 to 95 928 105 530 01 are no longer available. MWU the manufacturer has stated they are NLA as 10/10. None left with the wholesalers or Porsche. Bummer and triple bummer.

I have some communication with MWU to see if I can change there minds.

However in the meantime I wanted to see what the "928 Guru's" had to say about possible avenues and other "ways to skin a cat".

Already looked at the possibility of modifying the 83 to 84 round tooth cam gear 928 105 545 10 (thanks for the idea Mark). Looks possible but will need some machining. The rotor slots, boss depth and larger woodruff key slot.

As MWU also manufacture the early round tooth can gear I suspect it will also be NLA as soon as stocks dry up.

UPDATE Quick recap to save lots of reading.
Original part 928 105 530 01 became NLA 10/10.
OEM price (928sRus price) from the manufacturer MWU was $130 from Porsche direct $212.
Porsche announced via their monthly price list 12/1/10 a new part number 928 105 530 04 and the price increased from $212 to $392.60.
I suspect a change of manufacturer as well as price gouging by Porsche.



Looking for ideas please.

Jadz928

Reverse engineer and manufacture them. If casted, tooling cost are relatively low. If forged, not so much.
If volumes are high enough, coulf lathe-spin, then broach the teeth and keyway for under $50 each.

terry gt

I think the best way to deal with this issue is to accumlate a large order to motivate a production run . count me in .

123

If they're still available, how similar are the ones for the 944/951/968?

jleidel

HKS makes adjustable cam gears for the higher end Japanese tuner market.... [as well as several other manufacturers] many are specifically built for the higher-horse turbo Nissan's and what not. I'm not sure of the various size options and/or tooth layout, but it might be an interesting alternative.

http://www.hksusa.com/products/?id=629

ROG100

Jim,
Maybe a new project for you.
Roger

ROG100

My first call is to try and change the mind of the OEM.
However reverse engineering is much more interesting and maybe a good cost saving.
I was selling these from the OEM for $127 and from Porsche (I bought the last 5) $215.

Would steel be better or is the light weight more interesting?

blown 87

If you have any of the last five I will take a set of them Roger.
And this really sucks, as far as what they are made of, i really do not care, the steel ones sure would last a lot longer.

GregBBRD

Saw that coming....for once.

atb

Would Mike Simard be interested in doing a run of these?
There is no doubt that every 928 is going to need a set sooner than later.
If you haven't shopped around tooling/start up costs Roger to have these made, maybe get a number and see if everyone would be willing to chip in on the development costs.
This is definitely a part we all need.

blown 87

With out cam gears that is the end of the 928, simple as that.
I wish I had seen it coming.

BC

What is Porsche trying to do? I suspect that you can still get a Porsche 911 hooziwhat dookhicky from the 1967.23 model year with the K-boob option - but we can't get a simple wear item?

atb

Greg, is there any reason to have to replicate the stock gear? Could it be done in steel or would that kill the timing belt? To much strain on the cam journals if made with heavier material?

Seems like if we could avoid the anodizing process it would be a significant cost saver.

Rob Edwards

Ugh, this is going to be a problem. I got a quote from Sunset a month ago for $167 each, and Mark had then for $135 so I put a pair on the shelf, just to have. Better to be lucky than good, I guess.

At some point Andrew Olson had some used gears re-coated, with some positive followup. Wonder whether this is worth pursuing...


https://rennlist.com/forums/928-foru...squeamish.html

atb

Are there enough good used cores out there to make refurbishing possible? Most of the used cogs I've seen are thoroughly trashed by the time they are replaced.