Jeremy B

I have an 02 taga, there seems to be sometimes, especially when it's been driven alot, a rattle or sounds like the engine will diesel for a second when I shut if off, could it be some bad gas? Also my top and back hatch squeak alittle, is there something to put on the rubber seals to quiet them down? And one more thing, am I reading right on 285 30 18 tires in the rear, the pressure should be at 44lbs, and the front 36 , is that cold pressure in the morning?

thanks so much

Drjeremyb

Ahsai

Drjeremyb

Don't know about the engine rattle but to cure seal squeaking, you may want to try Wurth Rubber care http://www.carcareonline.com/detail....oduct_id=11303 on the seal and Wurth lubricant http://www.carcareonline.com/detail....oduct_id=11302 on all the metal moving parts that you have access to.

The combination cured my sunroof squeak (I know you're talking about the cab roof) that even the dealer couldn't fix using kryptox grease.

Good luck.

- Ahsai

Ahsai

BTW, the cold pressure you quoted sounds right (my C2 has 36 front, 44 rear) and a lot of people play with lower pressure to make the car handle differently. I think you may need to experiment to find the right combo that suits your style of driving.

- Ahsai

snaproll

36 and 44 are correct for the tires, cold. I found on my first set of rears that 44 provided a wear pattern that suggested they were overinflated, while 36 was perfect for the fronts...............

delirium

my car makes a sort of rattle when I turn it off too, but if I hold the clutch pedal down the rattle is less noticable.

nycebo

Is it kind of like a little metal cluncking sound for less than a second? My guess is that it could be the crank or clutch spinning down to a stop. FWIW, I notice the same thing.

delirium

ya 44psi in the rear for me too and the rear tires are worn in the middle which suggests over inflation.. weird.

Robin 993DX

Try to hold the clutch pedal in when you shut the engine off, and then release it after the engine is off. If I am understanding your explanation correctly, this is a typical 911 flat six behavior.

If your situation is worst than just a clunk sound then you may have other issues. Which can be related to bad, dripping fuel injectors, ignition eletrical related issues, fuel pressure issues...etc..... but let's hope that's not the issues here.

1999Porsche911

Next time you shut down, let the clutch out slightly so it is just barely beginning to engage. What you are testing is for looseness (broken spring) on the duel mass flywheel. If the noise is eliminated or drastically reduced, the flywheel may be causing the noise. You can also try identifying where the noise is coming from by having someone else turn the car off while you stick your head under the car,

marlinspike

I'm guessing they tell you this to try and calm down the oversteer while still having a good and high front pressure. (when you close the gap btwn the two pressures you get more oversteer, or less understeer as the case may be).

Jeremy B

THANKS for all the replies, I will try to hold in the clutch and play with it to see if it makes a difference, I'm guessing it may be that , or normal behavior and it doesn't do it all the time. And I changed the pressure to 44 in teh rear and 36 in the front, definately rides alittle stiff, but that's ok it's a sports car, and an un beleivable one at that. Does anyone know , this may be a dumb question but is it bad to used silicone on the seals? to stop the squeaking? also what does everyone use for leather conditioner, I'm embarassed to say I used leather wipes the other day, and they were horrible, I still feel like they left a neasty film on them. thanks

Drjeremyb

marlinspike

1 - rubber seals: there is no product better than wurth rubber care, especially the gel stick form. I get mine from www.carcareonline.com. I don't like silicone because it has a way of browning rubber.

2 - I know in the BMW world, Lexol is basically what everybody uses (again, I get it from carcareonline.com, but this one is available from many many sources, Wurth is a little more rare in the US).

Ahsai

I have the same rattle at shut off. If I clutch in comlpetely then shut off, the rattle is much less, if any at all. Is there an easy way to confirm which part or parts are at fault?

gota911

Try 32 front and 39 or 40 in the rear... the ride will be "better" and trhe wear will improve

pete13

I have the same rattle noise at shutoff. I also have noticed that pulling out of the garage, with clutch partially engaged, I sometimes get a rattle (not all the time, seems to depend on RPM). Would this be a loose flywheel spring?


As far as leather conditioning goes, if your seats are worn and/or getting harder due to sunlight, etc., leatherique is a product that will restore the suppleness, and they claim it will also maintain the leather's strength and prevent cracks and so forth. It's a bit pricey at around $70 for the restorer and cleaner (it's a 2 part process, "restoring" and "cleaning"). Very good product though, great results.