oh wow

[Bimmerboy91]

after spending the whole day doing a major fixes of various things to the 325/es (sooo tired). i have a couple questions.

after i changed the transmission fluid, and i used redline, i still get the ratte in my transmission when i turn off the car. but the rattle goes away when i have the clutch in and in gear and i turn it off the engine, the rattle goes away and here is a pic of the drain bold of my transmission when i first took it off. are those metal shavings? and if so, am i in trouble?

[JoeP]

Does it rattle when it's idling in neutral, but go away when the clutch is in? If so, it's probably just the flywheel. BMW's had a lot of complaints about noisy flywheels, which is why they went to the damn duel-mass flywheels.

[jlevie]

If the rattle is only present when the transmission is in neutral and the clutch is engaged it isn't anything to worry about unless it is really loud. A lightweight flywheel will almost always have some of that rattle and it isn't unusual to hear a mild rattle from a transmission with some age on it even with a stock flywheel/clutch. The noise is from the transmission input shaft.

[Stevie30]

My transmission in my '89 has been rattling and whining for 35,000 miles. No problems other than a little noise. It is still very reliable.

[Bimmerboy91]

it did rattle when i was at idle but now that i changed a lot of things to it the engine is more stable and i changed the transmission fluid, it doesnt do it anymore unless the engine dips into low rpms. but when i have the clutch disengauged (clutch pedal in) and in gear when i turn it off the rattle is gone. usually when i dont have it in gear and the clutch engauged (clutch pedal out) theres a rattle when its turning off. ill try to take a vid later to day.


and in the pic of the drain plug of the transmission, are those metal shavings?

[jlevie]

That sounds normal to me. And yes those are metal particles on the drain plug magnet. It is normal to find a small amount (along the lines of what's in the picture) in the transmission hasn't had a fluid change recently. I'd only become concerned if I saw that on a short cycle fluid change (say after 5k miles).

[NC325iC]

dont worry about the metal shavings

[smonkbmw]

throw out bearing.

[Bimmerboy91]

is there anything wrong with having a loud tapping from the valves? i did the valve adjustment 2x now and i still here some loudness from the valves

edit: make it 3x still have some tapping.

[fmxomar]

if its the ticking its normal and your supposed to hear it

[Bimmerboy91]

so having loud tapping (ticking clicking) its nothing bad?

and has anyone noticed that after you do the valve adjustment the cars sound, sounds so much better?

[jlevie]

Judging valve noise remotely is pretty difficult. What would be terribly loud to one might be a mild tick to another. Having an experienced BMW tech listen to the engine will quickly determine whether the noise is excessive or normal.

Assuming the valve train is in good condition, once the engine is up to normal temperature you should just barely be able to hear a valve tick at idle if the valves are properly adjusted.