Buying 996 with IMS making noise
#18
Just a quick FYI, if the bearing in it now is bad, then there could be other internal damage to the engine. So, just replacing the bearing would not be the answer.
#19
Well if you're going to do thi you may as well change the clutch and RMS while it's apart. This is major work though.
#21
Dude, don't rush it, take your time and look around.
#22
Does anyone really know what noise an IMS bearing would make, and if so, how? I wonder if this is a noisy cat or muffler. The 99's have double row bearings, which makes an IMS breach considerably less likely than otherwise. Might be worth a PPI if everything else is terrific. If the noise nevertheless is from the engine (whether or not the IMS), certainly best to move away quickly.
I can't really describe the sound other to say that it is clearly -- to me anyhow -- an unhealthy sound. It was clear the noise wasn't coming from the accessory drive end of the engine nor from the transmission.
Something to keep in the back of your mind while driver your Porsche, any car really, is anytime the engine starts making noise that is the time to shut off the engine and get the car to a qualified shop for diagnosis. That is *not* the time to start the engine and run it in hopes the noise will go away on its own or somehow you will guess its source, as if that makes it all better.
#23
That 996 with the noisy IMS bearing would be expensive even if the owner gave you the car.
#24
#25
I've come upon several cars at the dealer that have been in for what proved to be a bad IMS bearing. I've heard the engines run.
I can't really describe the sound other to say that it is clearly -- to me anyhow -- an unhealthy sound. It was clear the noise wasn't coming from the accessory drive end of the engine nor from the transmission.
Something to keep in the back of your mind while driver your Porsche, any car really, is anytime the engine starts making noise that is the time to shut off the engine and get the car to a qualified shop for diagnosis. That is *not* the time to start the engine and run it in hopes the noise will go away on its own or somehow you will guess its source, as if that makes it all better.
I can't really describe the sound other to say that it is clearly -- to me anyhow -- an unhealthy sound. It was clear the noise wasn't coming from the accessory drive end of the engine nor from the transmission.
Something to keep in the back of your mind while driver your Porsche, any car really, is anytime the engine starts making noise that is the time to shut off the engine and get the car to a qualified shop for diagnosis. That is *not* the time to start the engine and run it in hopes the noise will go away on its own or somehow you will guess its source, as if that makes it all better.
#26
The first 2 are c4's which I personally would lean to, the last on doesn't give enough info.
#27
First, spin on your heels and ... ready, set, run. Next, never buy car from someone who is telling you, up front, that there is engine noise that he believes is terminal. Lastly, I don't believe the IMS bearing ever gives any noise warning prior to going out. If it did, the people who have experienced it would have stopped and had it fixed prior to catastrophic occurrence. Either way, undiagnosed engine noise is no way to begin an expensive relationship.
#30
went to see a number of 996's on the weekend one of which was the reason for this post the seller said that the IMS needed to be changed. I listened to this car and could not hear a thing but a normally running 996. The seller would not leave the car running for a long period of time as the noise only would appear when the car was warm. my immediate thought is that this is a water pump issue not IMS because if I'm not mistaken an IMS would make noise right from the start if it is going. Either way I walked away after hearing the whole story from the seller. Engine was replaced and supplied by his buddy a mechanic out of his 996? a new clutch was installed but he didn't do the IMS or RMS? my hunt is over for now decided to invest in some property instead of buying the car.
thanks to all of you for your help in my search I'll probably just pick up a Boxster for the summer
thanks to all of you for your help in my search I'll probably just pick up a Boxster for the summer