944 S2 Cams required -
Discussion
As an owner of a very high mileage S2 I've briefly looked into wether cams are available, as the chain teeth can be a bit of an issue it seems.
They are available from Porsche but I think they were around £500 each plus vat.
I couldn't find any aftermarket cams and couldn't find any knowledge of re profiling. Although a friend who does this kind of thing on big machinery thought it was the way to go.
They are available from Porsche but I think they were around £500 each plus vat.
I couldn't find any aftermarket cams and couldn't find any knowledge of re profiling. Although a friend who does this kind of thing on big machinery thought it was the way to go.
I replaced the cams on my last 968 at about 80K miles with new genuine Porsche items but much later discovered that a subsequent owner had to replace them again after about 30K miles due to wear on the sprockets again!
My first 968 (and two previous 944S2s) were fine with no evidence of cams being replaced but my first Porsche, a 944S, had previously suffered cam sprocket issues as I discovered a few teeth in the sump! The cams in the car were fine when I bought it.
On this basis, I suspect that there was some variation/quality issues in the manufacturing process. If I had to do it again, I recon a set of used cams in good condition are as safe a bet as new, assuming you can find some?
My first 968 (and two previous 944S2s) were fine with no evidence of cams being replaced but my first Porsche, a 944S, had previously suffered cam sprocket issues as I discovered a few teeth in the sump! The cams in the car were fine when I bought it.
On this basis, I suspect that there was some variation/quality issues in the manufacturing process. If I had to do it again, I recon a set of used cams in good condition are as safe a bet as new, assuming you can find some?
DRH986 said:
I replaced the cams on my last 968 at about 80K miles with new genuine Porsche items but much later discovered that a subsequent owner had to replace them again after about 30K miles due to wear on the sprockets again!
My first 968 (and two previous 944S2s) were fine with no evidence of cams being replaced but my first Porsche, a 944S, had previously suffered cam sprocket issues as I discovered a few teeth in the sump! The cams in the car were fine when I bought it.
On this basis, I suspect that there was some variation/quality issues in the manufacturing process. If I had to do it again, I recon a set of used cams in good condition are as safe a bet as new, assuming you can find some?
The 968 had a significant difference though - it had an early form of VarioCam that somehow moved the tensioner block to alter timing of one of the cams. This seemed to lead to a significant problem with 968 cam sprockets losing teeth quite regularly, in a way that was never a problem for the 944. Having said that, 944s are now much older than when I last had one, so it's quite possible that their cam sprockets are also starting to fail due to much higher wear / age than when I had my last one.My first 968 (and two previous 944S2s) were fine with no evidence of cams being replaced but my first Porsche, a 944S, had previously suffered cam sprocket issues as I discovered a few teeth in the sump! The cams in the car were fine when I bought it.
On this basis, I suspect that there was some variation/quality issues in the manufacturing process. If I had to do it again, I recon a set of used cams in good condition are as safe a bet as new, assuming you can find some?
Sprocket wear as a result of tensioner wear was an issue for the S engine in the mid-nineties. This is why there are lots of S2 engined cars around, as heads or engines were hard to obtain.
I had a friend who was a specialist who had TEN Ss parked in a warehouse waiting their tur for parts to repair! The S2 suffered far less (at the sames age/mileage): proably due to your not needing to wring its throat in order to make it go anywhere.
I had a friend who was a specialist who had TEN Ss parked in a warehouse waiting their tur for parts to repair! The S2 suffered far less (at the sames age/mileage): proably due to your not needing to wring its throat in order to make it go anywhere.
Magnum 475 said:
The 968 had a significant difference though - it had an early form of VarioCam that somehow moved the tensioner block to alter timing of one of the cams. This seemed to lead to a significant problem with 968 cam sprockets losing teeth quite regularly, in a way that was never a problem for the 944. Having said that, 944s are now much older than when I last had one, so it's quite possible that their cam sprockets are also starting to fail due to much higher wear / age than when I had my last one.
The VarioCam may be a contributory factor. Though I've read it doesn't take much wear/stretch in the chain for it to ride higher on the sprocket teeth.And then it's just a matter of time before the teeth wear and snap off. Perhaps the chain should be replaced at the same time as the belts.Gassing Station | Front Engined Porsches | Top of Page | What's New | My Stuff