My 911 shifts better when warmed up?

[H.G.P.]

I've noticed that shifting from gear to gear becomes much easier after the car is warmed up to idle between roughly 900-1000. Any reason for this? (I have a 901 transmission)

[masraum]

the fluid is hot, so it's flow properties have changed. Even my G50 is like that.

[72 four door]

How are you in the morning? man i know until i wake up im a little groggy.Gotta get the blood[oil] flowing.

[H.G.P.]

OK. When cold, I have to usually press the clutch peddle further down to engage gears.

[old_skul]

Regardless of whether it's hot or cold, you should always depress the clutch pedal fully when shifting.

[72 four door]

Its probably still idling high so its spinning faster so it takes a little longer for the clutch to engage Just a thought

[H.G.P.]

Originally posted by Paul Andersen
How are you in the morning? man i know until i wake up im a little groggy.Gotta get the blood[oil] flowing.

Are we talking about engine oil or transmission fluid? (or both). I'm wondering if I should let the car idle longer then before driving (shifting)?

[Embs]

I think all std. shift vehicles shift better when they have warmed up a bit. Everyone I have had did/does.

[masraum]

I wouldn't let the car sit and idle, maybe just concentrate on shifting a little slower. It's not the engine oil, it's the tranny fluid(oil) that affects the shifting.

[72 four door]

They say you can get in and go with porsches just keep your shifts [rpms]below 3 grand until you reach operating temp. what kind of gear oil are you using?

[RoninLB]

I think my 911 is a "prize".. but the 915 is a boobby prize.. when ice cold, in order to prevent clashing gears, I double clutch for awhile...............Ron

[H.G.P.]

Originally posted by Paul Andersen
They say you can get in and go with porsches just keep your shifts [rpms]below 3 grand until you reach operating temp. what kind of gear oil are you using?

I'm using Valvoline gear oil, can't recall the numbers.

[Porschephanatic]

Originally posted by RoninLB
I think my 911 is a "prize".. but the 915 is a boobby prize.. when ice cold, in order to prevent clashing gears, I double clutch for awhile...............Ron

I'll second that! My old, beater pickup tranny shifts better w/ 157k miles on it, and my 915 was just rebuilt! I still love the car, though.

[Eugene at Pelican Parts]

I've only had my car for a few weeks now and this happened to me once. It was a cool morning, about 45 degs F, and I parked overnight on a fairly steep slope. When I fired it up to get to work, I noticed the clutch felt 'viscous'... like the other end of the lever was in a vat of tar. It was a bit tougher to push the pedal down, and it sprang back up very slowly. After about 10 shifts, I felt it loosen up, and eventually back to normal. That only happened that one cool morning. Now why did it do that? Was it the incline? It's always about 45-55 degs in the mornings here.

[JeremyD]

That's why I moved from California -