10 points...
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oliverjamesthomas
New member
0.25mm or 0.01" would sound about right.
If it was a 996, probably a country mile .......[
]Regards
oliverjamesthomas
New member
To be honest, I can't take the credit for it. I got it from a very experienced and knowledgeable engine builder who has rebuilt, among other things, a 964 and a 993 engine. Having known him for a few years and having seen what he can produce and the standards he works to, I'm taking the figure with a reasonable amount of certainty. The fact he served his time as an engineer in aerospace helps I suppose!
Maurice - no, I couldn't find it either. Porsche tech reference doesn't have it listed, which I found a little strange because it gives tolerences for just about everything else that makes up the engine!
Regards
Maurice - no, I couldn't find it either. Porsche tech reference doesn't have it listed, which I found a little strange because it gives tolerences for just about everything else that makes up the engine!
Regards
Guest
New member
I ask the question as I recently had a seeping RMS replaced. The new one leaked. The garage said that the crankshaft end float was about 0.2mm (0.19 to be exact), and they thought that may be causing the RMS to fail. This, of course, has caused me many restless nights! Constantly waiting for the new one to fail.
So, which looks more likely; the replacement seal was faulty or badly fitted, or 0.2mm end float is causing failures (the original was seeping after 68k miles)?
So, which looks more likely; the replacement seal was faulty or badly fitted, or 0.2mm end float is causing failures (the original was seeping after 68k miles)?
oliverjamesthomas
New member
Interesting one that! Personally, I wouldn't have thought that sort of float would create an RMS issue - although I am open to discussion. Perhaps you have just been very unlucky and have ended up with an RMS that had an underlying flaw, or indeed a simple mistake when fitting.
I haven't heard of a great number of RMS issues with the 993, although I do remember at Brands last year Maurice was spitting feathers because one of the Porsche teccies suggested they'd had big problems with them, in response to Maurice asking about Boxster / 996 failures - am I remembering correctly Maurice???
The interesting point though is the mileage of the car. There are plenty of 993s around with similar or greater miles under their belt and if 0.19mm can be considered excessive and a potential cause of a problem, it suggests, to me at least, that there could be an underlying problem with wear that others will experience also.
Regards
I haven't heard of a great number of RMS issues with the 993, although I do remember at Brands last year Maurice was spitting feathers because one of the Porsche teccies suggested they'd had big problems with them, in response to Maurice asking about Boxster / 996 failures - am I remembering correctly Maurice???
The interesting point though is the mileage of the car. There are plenty of 993s around with similar or greater miles under their belt and if 0.19mm can be considered excessive and a potential cause of a problem, it suggests, to me at least, that there could be an underlying problem with wear that others will experience also.
Regards
Guest
New member
Not the first time, but I called in unannounced the second time and it was out. To be honest I don't think they're the sort of company to try to pull a fast one, they seem decent chaps and have been recommended on here (indeed praised for their trackside assistance by you Maurice!).
However, I'm 90% sure they overfill the oil. People say that can't really hurt a car, but if the system is full and the oil expands as it gets hot, something's gotta give? Opinions?
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