Hard to get into 1st when moving

adampecush

Regular Supramaniac
May 11, 2006
2,118
3
38
Edmonton
osama1234 said:
Thanks for all the responses. I actually paid attention while driving today, and basically if i'm rolling i can't shift into first (even if revs have dropped to idle). I pretty much have to be stopped to shift into first. (and to answer the question, i was basically downshifting to first when at 1500 rpm)

But i've noticed incredible amounts of fluid falling when i turn a lot to park, i guess i'll have someone turn the wheel and see if i can find it.

For the shifting into first gear, have a look at how manual transmissions work on howstuffworks.com - this should make it clear why you cannot shift into first when moving with engine speed at idle. (for example, if you are rolling at 20 mph and 2000 rpm in second gear, for this speed, your engine speed would be 3500rpm in first - which is approximately where you would need to rev the engine to to put it into first)

When you turn your wheel, the pressure within the power steering system increases to aid in turning the wheels - this is why a higher volume of fluid is leaking out when you put a high load on the PS system (ie low speed parking)
 

mkIIIman089

Supramania Contributor
Mar 30, 2005
3,061
0
36
Ohio
starscream5000 said:
I you want to get the best gas mileage and don't care about the people behind you, shift gears at about 2K RPM with slow, I mean slow acceration. If you don't want to go that route, then 2.5K is about where I'd do it.
Wow, thats REALLY extreme, LOL. I can't imagine how slowly you'd be accelerating to keep it in good vac and shift at 2k RPM.

My car sounds like I'm torturing it if I drive much below 1800 revs, LOL.
 

Poodles

I play with fire
Jul 22, 2006
16,757
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Fort Worth, TX
I learned by getting my hands dirty, and I have the calluses, scars, and bruises to prove it.

You end up buying tools....lots and lots of tools. Nothing makes job easier than the right tool (and saves your skin)

Back on topic, you'll have th rev match to get into first, so you'll have to rev up until it goes in...
 

Jaguar_5

It's ALIVE!
Feb 7, 2006
1,468
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Seattle
I'm so amazed this has only been said once!

Double clutch it!

If you don't know what that is, instead of clutch in, change gear, rev it, clutch out, you let off the clutch in neutral, so:

Clutch in, change to neutral, clutch out, rev it, clutch in, choose gear, clutch out.

All done in about a second, when done correctly it'll be smooth as silk!

That being said, there is virtually no need to ever downshift to 1st ;)
If you're on ice though, it's better to do that then to hit the brakes for an emergency stop

As far as being a mechanic, I now basically consider myself one, even though I learned everything on my own, I've always worked on my own cars, as well as family / friends, ever since I owned my first car, when something broke, I figured out how to fix it! When I got the Supra, things just took off, these forums helped out a LOT!
 

starscream5000

Senior VIP Member
Aug 23, 2006
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Hot and Humid, KY
mkIIIman089 said:
Wow, thats REALLY extreme, LOL. I can't imagine how slowly you'd be accelerating to keep it in good vac and shift at 2k RPM.

My car sounds like I'm torturing it if I drive much below 1800 revs, LOL.


Hey, it works, but like I said, "if you don't care about the people behind you..." ;).

When I bought my geo I was getting 38 MPG out of the 3 banger, that's not great for that motor. A little tune up and intake modifications and I was up to around 45-48 MPG. Driving the car like I mentioned above (except shifting at about 2.5K instead of 2K, as the car revs fast and has no power that low at all, I was able to get 51.5 MPG.

That car's down for now for repairs, but I went back to driving my regular DD and it only gets about 27-28 MPG. I changed my driving habits to match the way I drove the Geo, and I've consistently been getting 32.5 MPG with it now...
 

Jaguar_5

It's ALIVE!
Feb 7, 2006
1,468
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Seattle
starscream, i don't think that's a very good idea

Driving the engine at such low rpm's is bad, you don't want to lug the engine around like that...

I never drive any gear below 2000, except obviously first gear, sometimes I'll go to maybe 1600 in 2n'd if it's downhill or completely flat... but if the engine is struggling to push the car, i'm quite sure it will wear out quicker, put more strain on the bearings

It sure feels like the engine is struggling if you go too low, cannot be good!
 

starscream5000

Senior VIP Member
Aug 23, 2006
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Hot and Humid, KY
No problems here. No lugging from the Geo or the 3G. If the supra can't handle 2K RPM shifts, then bump it up some, how hard is that to do?

This is my acceleration on flat roads, cruising speed in fifth is 70 MPH. The gas gets eaten up in the acceleration, that's why I'm easy on it when getting up to speed.
 

Poodles

I play with fire
Jul 22, 2006
16,757
0
0
43
Fort Worth, TX
adampecush said:
and enough broken/dented/scratched parts to shake a stick at.

true, but I have MORE damage from a shop bringing a lift down on my open door than I've ever done to the car...

I"ve spent a lot of money doing it RIGHT (to the tune of about $400 recently in interior parts, not to mention everything else), but my car has become seriously reliable after all the work.

I'm a hell of a lot more careful than any shop will ever be...