Trivia Question #7
- Thread starter Frank M
- Start date
Cosmic Green
Veteran Member
#3.
no rest till
Veteran Member
It sounds like the front is braking too much...
#3 but im not sure
#3 but im not sure
Hmm, well another one of these simple, tricky questions.
It seems it would be #3.
If this is a VW, then the answer is 5,
Piece of stank OEM shocks wore out after driving off the lot and it's just a matter of time before the rear pads wear out from over use.
I wonder what impact the "lightly" has on the question.
Also, there's no eqpt. sugggested as either having or not having that could alter the answer. So the easy answer is 3.
It'll be fun to see the answer.
It seems it would be #3.
If this is a VW, then the answer is 5,
Piece of stank OEM shocks wore out after driving off the lot and it's just a matter of time before the rear pads wear out from over use.
I wonder what impact the "lightly" has on the question.
Also, there's no eqpt. sugggested as either having or not having that could alter the answer. So the easy answer is 3.
It'll be fun to see the answer.
Judson
Veteran Member
I don't even know what 2 and 4 are, and I've rebuilt
older brake systems! Maybe it's an ABS thing, as
I don't touch those.
Proportion valves are static, afaik, despite load.
I would go for #5, worn front shocks, but...
I would think the vacuum check valve would be associated
with the vacuum booster, which runs off engine vacuum
in order to amplify the force of the brake pedal.
So, by process of elimination, I'll go for #2.
Jud.
older brake systems! Maybe it's an ABS thing, as
I don't touch those.
Proportion valves are static, afaik, despite load.
I would go for #5, worn front shocks, but...
I would think the vacuum check valve would be associated
with the vacuum booster, which runs off engine vacuum
in order to amplify the force of the brake pedal.
So, by process of elimination, I'll go for #2.
Jud.
SVTWEB
Veteran Member
#2
MrMetal
Veteran Member
False?
<font color="red">To clarify the different choices here is an explanation of the valves listed:
Metering valves are used in a disc/drum brake system. It keeps the front discs from operating until the rear drums have started to work. It regulates only the front caliper pressure. Rear (drum) wheel cylinders need to over come force of the shoe return springs. Front brakes apply quickly.
Proportioning valve maintains correct pressures between front and rear.
During a light brake application the valve does not affect rear wheel pressure.
During moderate brake application it reduces pressure to rear brakes to compensate for transfer of vehicle weight. Preventing rear wheel lockup.
During high pressure pedal application the proportioning valve opens and allows full pressure to the rear wheels.
This vehicle with the problem has disc/drum brakes. </font>
Metering valves are used in a disc/drum brake system. It keeps the front discs from operating until the rear drums have started to work. It regulates only the front caliper pressure. Rear (drum) wheel cylinders need to over come force of the shoe return springs. Front brakes apply quickly.
Proportioning valve maintains correct pressures between front and rear.
During a light brake application the valve does not affect rear wheel pressure.
During moderate brake application it reduces pressure to rear brakes to compensate for transfer of vehicle weight. Preventing rear wheel lockup.
During high pressure pedal application the proportioning valve opens and allows full pressure to the rear wheels.
This vehicle with the problem has disc/drum brakes. </font>
I will have to admit this question really does not apply to our TDi's. Its for a drum/disc system.
If I had to do it over again I would chose a different topic.
The answer is #2.
Its because it only happens under light braking. However this sympton, in moderate braking is usually the proportioning valve. One poster experienced that I see.
I will do a trivia #8 later today. If you have a particular topic please suggest it.
If I had to do it over again I would chose a different topic.
The answer is #2.
Its because it only happens under light braking. However this sympton, in moderate braking is usually the proportioning valve. One poster experienced that I see.
I will do a trivia #8 later today. If you have a particular topic please suggest it.
runonbeer
Maintenance EnthusiastVendor
what causes the 65535 code on the A3/B4 TDI?
jjvincent
Veteran Member
Here's another suggestion:
Why is there air?
Why is there air?
runonbeer
Maintenance EnthusiastVendor
I'll get you started:
<FORM METHOD=POST ACTION="http://forums.tdiclub.com/dopoll.php"><INPUT TYPE=HIDDEN NAME="pollname" VALUE="1054834249runonbeer">
the 65535 code is caused by:
<input type="radio" name="option" value="1" />a bad diode in the alternator
<input type="radio" name="option" value="2" />corrosion on grounds under battery
<input type="radio" name="option" value="3" />damaged to pressure hose leading to or inside of the ECM
<input type="radio" name="option" value="4" />somthing else.
I vote #4
weedeater
Top Post Dawg
ans: to hold up the clouds.
Actually, I don't know if that's a loaded statement or not but both of those items are false.yeah but,
why is the sky blue (and the grass green)?
The sky is not blue and grass is not green, we merely see them as that.
Ahh, people and their perceptions, now that is a truly deep subject I could get into but as this is not the performance forum or the other forum for such discussion, now extinct from Fred's, let us move on to trivia question #8.
Perhaps a question regarding turbo boost?
will360655
Veteran Member
Nothing you see is the color it realy is. Just take away all light and you no longer have color. There is no blue or green. Just light reflecting or being absorbed by materals. There are no colors. Just light.
Will
Will
runonbeer
Maintenance EnthusiastVendor
so I got a question for ya, is light "wave-like" or "particle-like"
weedeater
Top Post Dawg
Yes.
The sky is blue due to the forward scattering of sunlight at the blue end of the spectrum. Grass is green (and anything is whatever color it is) because the chlorophyl in plants absorb light at other frequencies and reflect green light. Hence, when the chlorophyl goes away in the fall the other substances in the plant reflect other colors.
MITBeta
Top Post Dawg
- Joined
- Feb 24, 2001
- Location
- Boston's Metro South-West
- TDI
- 2001 Jetta TDI, 2004 Sprinter CDI Passenger (Mid/High), former: 1996 Passat TDI Variant
Isn't it lucky that our eyes just happen to be sensitive to the visible light spectrum?
Can you imagine other planets' occupants that see only in infrared?
Can you imagine other planets' occupants that see only in infrared?
NussWag
Veteran Member
This scattering you refer to is Rayleigh scattering and is caused by selective scattering of electromagnetic radiation by atmospheric particles with a diameter smaller than the incident wavelength. As a result, blue light is scattered about 4 times as much as red light while UV is scattered about 16 times more than red light.
As for the grass being "green." There are actually 2 types of chlorophyll (a and b). Between the two they absorb EM-radiation of larger wavelenghts in the visible range (mainly near-IR and red) and "reflect" the lower wavelenths (yellow and blue) which our eyes perceive as green.
An that concludes the lesson for today on things not important to VW TDIs!