What expensive failures can occur with Cayman S 987 mk1?
07-20-2018, 12:17 PM
#16
Heard that it can't be repaired - only replaced by new.
987.2 are pretty old, I cant exclude the possibility of failure
07-20-2018, 12:22 PM
#17
Rennlist Member
They're statistically reliable, which is why nobody has taken the effort to repair them.
07-21-2018, 05:05 PM
#19
Rennlist Member
07-21-2018, 05:08 PM
#20
Rennlist Member
Cylinder scoring is more common (and can be checked for at PPI easily).
Rod bearing failures on track are the #1 killer due to oil starvation and aeration.
07-23-2018, 07:05 AM
#21
Ok! Now the question is the same but about 987.2 2.9. 300nm and 265 hp is more than enough for me.
What weak points does it have besides smoke during cold start? What causes the smoke?
What weak points does it have besides smoke during cold start? What causes the smoke?
07-23-2018, 08:57 AM
#22
Rennlist Member
In an attempt to minimize this, Porsche pinned the second ring on the piston so the gap does not line up with the bottom of the bore (rings normally rotate in operation unless they are pinned).
07-23-2018, 09:01 AM
#23
Horizontally opposed engines have a tendency to pool oil in the cylinder bores and at startup, some of that oil makes it past the rings. Cold start doesn't help with the extra fuel enrichment to help start off the catalytic converters (fuel = cat food - not my phrase, but it's the truth). The extra fuel helps the catalytic converters warm up quicker to reduce emissions. On the flip side, the extra fuel washes down the bores and can lead to a bit of smoke at startup. Long drain intervals and fuel dilution also thin the oil out, causing more to get past the rings.
In an attempt to minimize this, Porsche pinned the second ring on the piston so the gap does not line up with the bottom of the bore (rings normally rotate in operation unless they are pinned).
In an attempt to minimize this, Porsche pinned the second ring on the piston so the gap does not line up with the bottom of the bore (rings normally rotate in operation unless they are pinned).
07-23-2018, 09:24 AM
#24
Rennlist Member
07-23-2018, 01:59 PM
#25
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Only negatives about my base 987.2 were that, compared to my base 981, it was......
1-too quiet. SOUL exhaust fixed that
2-6MT shifter was too vague. OEM short shifter solved that
3-throttle response on my non-sport Chrono car was unacceptable. Believe it or not Sprintbooster solved that
otherwise it pulls harder than my 981 did with 10 fewer hp, apparently, and it has better steering feel being hydraulic and all
wonderful car.
1-too quiet. SOUL exhaust fixed that
2-6MT shifter was too vague. OEM short shifter solved that
3-throttle response on my non-sport Chrono car was unacceptable. Believe it or not Sprintbooster solved that
otherwise it pulls harder than my 981 did with 10 fewer hp, apparently, and it has better steering feel being hydraulic and all
wonderful car.
Last edited by 850tgul; 07-23-2018 at 03:03 PM.
07-23-2018, 03:03 PM
#27
Only negatives about my base 987.2 were that, compared to my base 981, it was......
1-too quiet. SOUL exhaust fixed that
2-6MT shifter was too vague. OEM shirt shifter solved that
3-throttle response on my non-sport Chrono car was unacceptable. Believe it or not Sprintbooster solved that
otherwise it pulls harder than my 981 did with 10 fewer hp, apparently, and it has better steering feel being hydraulic and all
wonderful car.
1-too quiet. SOUL exhaust fixed that
2-6MT shifter was too vague. OEM shirt shifter solved that
3-throttle response on my non-sport Chrono car was unacceptable. Believe it or not Sprintbooster solved that
otherwise it pulls harder than my 981 did with 10 fewer hp, apparently, and it has better steering feel being hydraulic and all
wonderful car.
08-09-2018, 02:27 PM
#28
In Russia S versions cost a tiny bit more than base ones (4k grand) and there are much more Ss than bases, so maybe it's better to go S?
Heard that 3.4 987.2 have direct injection. Do they suffer from carbonization? What are the countermeasures?
Heard that 3.4 987.2 have direct injection. Do they suffer from carbonization? What are the countermeasures?
08-10-2018, 02:31 PM
#29
Drifting
Good thread since I was thinking about getting a 987.1 for the track. Any suggestions on good threads or blogs to read about oil starvation issues?
And yes, I've done searches...
And yes, I've done searches...