[Cloud9...68]

OK, I found my cam cover plate thingy, and it only has the most minute amount of surface corrosion - totally insignificant, so it should serve as a good template. Mefforddk, let me know if you'd like me to send it to you to copy. I also have the front distributor cover, part # 944.105.189, which I hear also has a tendency to corrode, if you'd like me to send that to have you copy. Let me know. Thanks.

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[mefforddk]

I think we also need to decide on painting options. our Al treatment tanks are not filled right now. so I was thinking of powder coating them black. I have a small oven for one maybe two parts or i might send them out to be coated. I have at least two sources that could batch coat them and add that to the cost.



before you guys send me the part, lets see if we get a positive response on the ROM cost. I should have it in the next couple of days. agree?

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[Cloud9...68]

Sounds good. In fact, we should get an estimate of how much demand there actually is for these parts before undertaking a manufacturing project. There seems to be a lot of variability as to the likelihood of corrosion on them - mine are practically flawless. It probably has something to do with the climate where the car has spent its life. But on the other hand, there are probably plenty of 968 owners with corroded cam sprocket covers who don't know it.

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[mefforddk]

The two lower helicoils on mine are stripped. one was stripped two years ago and the other came out yesterday. that is another failure mechanism as well. Are these parts used on any of the 944s?

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[DaveN]

I think that is the same part in my 944 S2 so there may be some market share there. My 968 one is in perfect order but I do worry that one day I may pry on it or smack it and there will be no replacement.

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[tamathumper]

Even if manufacturing at this point is not warranted - modeling one of the (fast disappearing) parts is better done when there's one available... In a few years, more and more of them will have dissolved...

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[Byte]

I would want a front and back at this time. Powdered black is fine. Would they be threaded and have the alignment pins as well? This would be cool.

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[Cloud9...68]

Yes, I'm missing the one of the alignment pins on my back cover. Wonder if they're available separately...

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[mefforddk]

Ok, the guys would like to get the two parts in their hands and on the CMM in order to make a good cost estimate. so if you can send them to me, that would be great. Cloud, email me at keith.mefford@theonics.com for my address and coordination.



Does anyone know why they chose Magnesium, other than weight, for the parts? I hope that they felt Al would create a background noise for the Hall sensor.



To answer the question about the threads, I would say Heli-coil at a minimum. I would prefer a Keensert for higher torque and cycle capability. with the low initial volume, powder coat should not be an issue. The oven I have is only big enough for 1-2 parts at most.



You can buy the roll pins easy enough, that's part of the reverse design of the part. I only have the top pin in mine and the two lower threaded holes are stripped as of yesterday.

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[SILVY968]

the pins are not supplied with the new Porsche parts. (now in aluminum, with no operational problems at all).

The intention is to transfer the pins from one part to another.

Brian

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[mefforddk]

Ah yes, i forgot that I had seen the new part was Al now. thanks for the reminder. Right now Cloud9..68 will send me both of his timing covers (front and back) this weekend. I'l give use 1-2 weeks to create a drawing. by then we should have a good idea on the price. so if the thread seems to go cold, its just that we are working in the background.



I'll update the progress once we get going.

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[Cloud9...68]

Just curious - could we please have a show of hands as to how many people are seriously interested in replacing their front and/or rear camshaft pulley covers? Might be a good time to take a look for signs of corrosion. Thanks.

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[SILVY968]

I am pretty sure that my PM would want 2 or 3 sets for his 968 clients.

Brian

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[tamathumper]

It's only a matter of time before we all want one.

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[banditsc]

I would be interested in a set.

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[Cloud9...68]

"It's only a matter of time before we all want one."



I thing it depends a lot on the climate the car lives in. Mine has spent its whole life in the South, and the plates only have the lightest surface corrosion, and look like they'll last another 50 years.

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[Byte]

I'm in. Front and back.

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[mefforddk]

should we start another thread asking the larger audience if they are interested. So far only people familiar with this thread seem to be responding. just a thought.

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[Cloud9...68]

That wouldn't be a bad idea. We need to make sure we include some pictures of some corroded camshaft pulley covers to show people what to look out for.

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[Cloud9...68]

Could someone post a picture of what a corroded one looks like? I think it would provide a helpful means for people to compare to, plus I'm curious as to what a bad case of corrosion looks like on these parts.



By the way, after years of wondering, I finally looked up what CNC stands for: Computer Numerical Control.

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