withers Posted 11September, 2012 Report Share Posted 11September, 2012 After talking to people about this 964 I'm looking at, made me wonder how many owners are driving Porsches with small oil leaks? Is it a common thing to have small leaks on a flat 6 engine found in the air cooled 911s? Edit: this is a very broad and general question I know.. as you can have PS leaks, and any other types of leaks. I assume any other leak non-engine wise is easier to fix. Is that a correct assumption? Link to comment Share on other sites More sharing options...
J.J. Posted 11September, 2012 Report Share Posted 11September, 2012 my 3.2 doesn't leak, never has Link to comment Share on other sites More sharing options...
Glenn Posted 11September, 2012 Report Share Posted 11September, 2012 Small leak from an indent bolt on gearbox is the only one I've had. It was an easy home fix. The trouble with leaks, even small ones, is not the drips on the ground, it is the mess it makes of underneath the car when the oil gets blown around while driving. Not to mention the smell of it burning when it comes into contact with hot exhaust etc. It took me a while to identify where my leak was coming from for this reason. Through bolt leaks were a common 964 problem. A tear down and reassembly is required once they go and I've been told that once that is done they generally never leak again. Link to comment Share on other sites More sharing options...
withers Posted 11September, 2012 Author Report Share Posted 11September, 2012 yes I was told that eventually all 964 engines need a rebuild. Link to comment Share on other sites More sharing options...
JustJames Posted 11September, 2012 Report Share Posted 11September, 2012 yes I was told that eventually all 964 engines need a rebuild. Do I hear the whooshing sound of a sweeping generalisation? Sooner or later all engines need a rebuild. As far as I'm aware, there were some peculiarities to the 964: 1. They were originally fitted with a tray beneath the engine which, in warm climes such as ours (possibly only north of Victoria ) caused problems with overheating. Most, if not all, Aussie 964's have subsequently had the undertray removed. 2. The factory fit magnesium valve covers were prone to warping and resultant oil leaks. There are aftermarket billet aluminium replacements available which do not warp. Link to comment Share on other sites More sharing options...
withers Posted 11September, 2012 Author Report Share Posted 11September, 2012 Do I hear the whooshing sound of a sweeping generalisation? Probably me misquoting slightly what I was told But yes, I'm sure all engines will eventually need a rebuild.. regardless of what make they are! Link to comment Share on other sites More sharing options...
sancho Posted 11September, 2012 Report Share Posted 11September, 2012 the early 964's until 1992 did not have a head gasket and that did cause a few leaks, after that the 964 engine was very reliable and dry. Link to comment Share on other sites More sharing options...
T-Man Posted 11September, 2012 Report Share Posted 11September, 2012 A couple of very small weeps. No drips. No burn off. All part of the character. Link to comment Share on other sites More sharing options...
hugh Posted 11September, 2012 Report Share Posted 11September, 2012 Mine used to leak, and leak quite a bit in the end. It's had a complete rebuild now and pleased to say totally free of leaks. Whenever I see a 911 parked or for sale I always take a peek under the rear, I do notice alot of them do leak (or weap) a slight amount. Especially if they have been sitting for a while.................. Link to comment Share on other sites More sharing options...
Chris-p Posted 11September, 2012 Report Share Posted 11September, 2012 Mine has a slight leak but not enough to cause any concern but it will be fixed during its major service due in nov... C Link to comment Share on other sites More sharing options...
withers Posted 11September, 2012 Author Report Share Posted 11September, 2012 Well the Golf is officially sold. So I'm in the market for a Porsche! We will see what the PPI says. I was led to believe that it's common for oil leaks, so just want to see what all your experiences are. Link to comment Share on other sites More sharing options...
D-banger Posted 11September, 2012 Report Share Posted 11September, 2012 I have heard that the oil used can also make a difference. ie going back to non-synthetic can minimise leaking/weaping on the air cooled engines. I am interested to hear if others have had a similar experience. Link to comment Share on other sites More sharing options...
Chris-p Posted 11September, 2012 Report Share Posted 11September, 2012 I agree Doug, I have 0w40 in my car at the moment which I reckon is too thin. Based on conversations I have had with people far more knowledgable than me, namely Mike from Spyder it should be 15w40. So that will be taken care of at the next service. C Link to comment Share on other sites More sharing options...
withers Posted 11September, 2012 Author Report Share Posted 11September, 2012 That is interesting information, thanks Chris and Doug. Link to comment Share on other sites More sharing options...
Chris-p Posted 11September, 2012 Report Share Posted 11September, 2012 In fact I don't know why 0 rating oil is sold in Australia as its really for cold weather climates which we don't have..... C Link to comment Share on other sites More sharing options...
D-banger Posted 11September, 2012 Report Share Posted 11September, 2012 In fact I don't know why 0 rating oil is sold in Australia as its really for cold weather climates which we don't have..... C Skiers??? Really chilled drivers??? Link to comment Share on other sites More sharing options...
withers Posted 11September, 2012 Author Report Share Posted 11September, 2012 With regards to oil - I was reading on rennlist that different 964 owners would get drips based on how much oil was in the car. I can't remember exactly what they said, but close to the red line or something. Let me see if I can find the thread. Thread here Link to comment Share on other sites More sharing options...
PeterP Posted 11September, 2012 Report Share Posted 11September, 2012 yep, a small leak or two...smells a little at times (which will be fixed in time), but as Theo says, part of the character of an old car.......still goes well though. :) Link to comment Share on other sites More sharing options...
Uncle Posted 11September, 2012 Report Share Posted 11September, 2012 2 very small drips that I happen to be fixing right now. One is a stud on the rocker cover. Oil is seeping past the nylock nut. Two is one of the lines going from the oil pressure relief to the cooler at the front of the car. Methinks the oil line nut is going to be a bugger to get undone.. Link to comment Share on other sites More sharing options...
jnr356 Posted 11September, 2012 Report Share Posted 11September, 2012 do you mean the thermostat? be very careful ,can get ugly (and exy) Link to comment Share on other sites More sharing options...
JustJames Posted 12September, 2012 Report Share Posted 12September, 2012 In fact I don't know why 0 rating oil is sold in Australia as its really for cold weather climates which we don't have..... C Chris, the reason is that when cold it's pretty much impossible to have a "too thin" oil. The thinner the oil, the easier it flows. As car peeps are mostly guys - 'scuse me, awit - we take solace in larger numbers. Oooh....look....nice high oil pressure! The truth is, that the high oil pressure you see in a cool engine comes at the expense of better oil flow, because pressure and flow are inversely related. And for a cool engine, flow is much more important. This is not to say that oil pressure is unimportant, but flow is probably even more important than pressure. Oils that are thinner when cold still have higher pressure than is necessary, which means that even a 0wSomething oil is thicker than your engine needs at startup. Link to comment Share on other sites More sharing options...
wasserkuhl Posted 14September, 2012 Report Share Posted 14September, 2012 However, you wouldn't put synthetic 0W40 in a pre 98 Air cooled Mezger Motor would you? (In australia) Link to comment Share on other sites More sharing options...
JustJames Posted 14September, 2012 Report Share Posted 14September, 2012 However, you wouldn't put synthetic 0W40 in a pre 98 Air cooled Mezger Motor would you? (In australia) No, but I suspect that the answer has everything to do with the fact that 0W oils don't seem to like the dark; they always seem very keen to come out into the light. I can't see that they would do anything but good for lubrication...even if some of that lubrication found its way out of the engine. Link to comment Share on other sites More sharing options...
T-Man Posted 14September, 2012 Report Share Posted 14September, 2012 How's this for a angle guys. Make a straight up 40W40 oil. Put a heating element in the oil reservoir to take the oil to correct operating temperature in about 10 seconds. And yes you may need a big battery!! Start the car and don't worry about it!!!!!!!!!! Reckon PFA can patent that????????? Link to comment Share on other sites More sharing options...
JustJames Posted 15September, 2012 Report Share Posted 15September, 2012 How's this for a angle guys. Make a straight up 40W40 oil... Link to comment Share on other sites More sharing options...
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