blown 87

I got a new set of cam chains for my rebuild, they are FEBI bilsteins

I put the right cylinder head together, every thing but the cam gear, all it needed was the valve cover put on.

I had the old cam chain laying on the bench while installing the left side cams when I noticed that the original chain is beefier than the OEM chain.

The outside links are .009 thicker and the inside links are .005 thicker, the rivets look stronger also.

Looks like I will be getting newer chains to replace my new chains.

Plus I get to redo the right side cams.

I should have known better than to buy aftermarket crap.

BC

I think there was a thread on this Greg. I don't know how to find it, or what the original subject was. There were pics of the different chains. When you figure it out let us know.

Mrmerlin

IIRC there are 2 different chains, one is the Hi performance chain and the other is regular.
The chains should also have 2 marked links 7 links apart to index your cams

the flyin' scotsman

I too have new cam chains Bilstiens but they dont have the OEM marked plates..........are these the 'cheaper' model?

blown 87

That is the same ones as I bought, they will not be going in my motor, to much to risk.

ROG100

"After market crap" - now hang on a minute. Those are OEM and not after market.

Maybe you need the racing chains which are after market and not OEM to the 928.

I have sold hundreds of these OEM chains without any problems and so do the main resellers including Pelican and Vertex.
Both IWIS and Bilstein are OEM and IWIS have a racing set as well which are beefier.

If there is something wrong with the chains and they were supplied by me I will replace them.

We first need to compare them to the Porsche chains to see if there is a difference before we decide if they are no good. I will gladly get a set of Porsche chains for comparison purposes.

Lets not call everything crap till we have discussed it - that was the purpose of the thread was it not 8>)

ROG100

Greg,
If the Porsche chains are different to the OEM I will give them to you FOC.
The chains are a 944 part and probably sold by the thousands outside of the 928 community.
If they were failing we would know about it I am sure.
Interested to find out and will have them by Tuesday.
Roger

ROG100

I just ordered a set of IWIS standard OEM chains and a set of IWIS racing chains to compare.
Same with the Bilsteins.
We can measure the link diameter and the thickness of the link plate as well.

blown 87

Roger your name did not even enter my mind.

All it took was one look to tell these are not as good of quality chains as the ones Porsche put in it in the first place.

To be honest, I have no idea where I got these chains from, and I damn sure would not ask for you to take them back.

As far as them being OEM, FEBI builds many parts and they are a OEM, but when it comes to the chain that was in mine and others I have had apart, it is not the same as a Porsche chain, that, I can promise you.

Get a pair of Porsche chains and see for your self.
You can see it, and you can feel it, the quality is just not there.

They do not even have the marked links on them.

I stand by my statement of them being after market, (IE not what came in it from Porsche) and I should have said Junk instead of crap.

Sorry man, I am calling this one like I see it.

blown 87

I did measure the link thickness and the bilstiens were thinner

ROG100

Greg,
No worries and I think it is important to prove for the community if they are good or no good.
I am with you that if there is a difference we all need to know and make a decision based on facts.
I checked and both the IWIS stock chain and the Racing chain are "after market".
In your case and understanding what you are doing to your engine maybe the stock chains may not be strong enough.
I am about to put new Bilstein chains on my GTS so I want to know as well.
As I am in a position to do this check I am happy to do it.
Roger

ROG100

Thinner than the chains on your car? Were they definitly stock chains and not changed at some point?
Lets check against a brand new set from Porsche as that is what you want to put in your car - yes.
I want to know as well.

blown 87

I also have a low mileage 89 at the shop with the cams out, I will try to measure and take pictures tomorrow of both the stock ones out of mine and the 89 plus the FEBI ones and see if there is a weight difference.

I think at this point that the stock Porsche or a 968 racing chain is the way to go.

Jadz928

There are parts from OEM suppliers that do not meet OE factory parts specs. All over the place.
You can call it aftermarket or OEM. OEM suppliers will continue to reduce mfg. cost out of the part, well beyond the marque, sometimes with serious disregard for critical specs.

I'm not saying this is the case here, and my statement is a generalization which does not apply to all.

ROG100

I do not want to sell anything that is not up to spec. So I am with you all the way.
Just like to do it factually rather than by "lynch mob" 8>).
Once we know I can let my customers make a choice based an fact and price.
Tell me about the 968 chain Greg? Is there a difference?