replacement of silent blocks on poliuretan part 1
All kind time of day. Three and a half weeks waiting for a miracle saylenbloki sub-frame and rear lower trailing arms firm "fulcrum". And then came the moment Hooray! Yesterday a friend and I have driven the x on the pit and rushed. We started with the subframe. On his removal, the old silentblocs press-fit and pressing into new took about two and a half hours. Thanks to that we were armed with a gun Likota all loosened and spun, without him would be sad. Removing the protection has been seen that the subframe rests on the rail, but from there and vibrate while riding. The condition of the bushes of course it was sad, here it is why when riding otdavala strikes somewhere in the legs. After removing and examining the bottom of the pillow saw a small silentblock torn, but as it comes only a week it when assembling it and stuck ago. When you are finished with the front part, poddomkratit ass and removing the rear wheel, it was decided of completion of works and return home. It is necessary morally nastroitsya such a volume of work. The car on the way home pleased, no bumps, extra rolls, and the pit goes with a Bang. But a shame the sound that I described to you before when pressing the gas pedal at low rpm when pulling away is not gone, which is very sad! Finish with "backwards" will seek the reasons under the hood.
Heavy infection
This silent I pulled out without effort hand
Here it is
In its place
Hurt when removing
In my opinion the x naobot soft compared to my classmates, especially noticeable when entering the turns. I think the stiffness silenty from poliuretana not given, only go longer.
Cool! Also wanted at one time to put the polyurethane, but I'm scared that X and so harsh, and polyurethane will be even tougher. Accomplish your goal then became, okay?
Avtopoisk74
We have polyurethane in the first winter of the fibers... and he kept worse... rubber vypadaet sometimes...
And yet, silentbloc for what? to smooth out the vibrations does not polyurethane...
In normal service, will not take advantage, but rather put a recommendation to replace...
put the fulcrum just for the stabilizer bar bushings
floor well when not naebyvat, rarity, I used this service to find, I would not pick would be...
I am in the service not working. But working With the service which I inspect the cars before purchase.
often I stop to replace something, and ask to see hodovku, if you do something, survey free. changing the oil in the engine, can FREE inspect the motor for leaks and see running, pay attention to the straps. Then say, better to replace and show you what and why! don't want to change? no one makes, it recommendation! but always show what needs to be changed and why! and not just telling me and all...
and th are you laiout everywhere, if only ball ? have me finally acucena that you are the employee of the service) for 5 years, one in which I was not led with dignity... even services friends don't help properly I say boys, I want a normal approach when the wait window, and then out of me Ipat brain or anyone... wait until the window is impossible :) if I personally did not pick the car, have not studied the math portion and did not make up for the driver of a mechanic, I would have went and listened to uncle Vasya in the services... I go to them for reassurance but purely to know the price of work, which would once again ensure purchase... and recommendations they always are :))
nadolany privadas belt, put a recommendation of replacement, and in General drove the ball to change.
DAAAAAAAA all services only kidding)))) especially in a big city as Chelyabinsk)))
You don't actually RUB they do not RUB and give a recommendation
now, if people do not know what is automatic and what and how to with oil ? he can RUB anything... than principle and doing services, especially in large cities.
if the oil in the machine dies, then put in a recommendation for her replacement. this is normal and rightly so, because there are rules!
in the services are for specific work, most if vpadlu... but don't for tips et 100 puda...
and recommend not to lower the car, I guess, too, that often is repaired went)))))
Avtopoisk74
We have polyurethane in the first winter of the fibers... and he kept worse... rubber vypadaet sometimes...
And yet, silentbloc for what? to smooth out the vibrations does not polyurethane...
In normal service, will not take advantage, but rather put a recommendation to replace...
pralno recommend services, who to them to be repaired will go, if all put polyurethane ? business services die MB :)))
Dorof057
another kind of metal filed off or erased from polyurethane
and battery to get faster from polyurethane :))
Avtopoisk74
We have polyurethane in the first winter of the fibers... and he kept worse... rubber vypadaet sometimes...
And yet, silentbloc for what? to smooth out the vibrations does not polyurethane...
In normal service, will not take advantage, but rather put a recommendation to replace...
another kind of metal filed off or erased from polyurethane
Would know or would have thought of earlier but in General all salinty on the ass changed. On x together with a depreciation of about 8 Grand.
Yes, all I ... I have not everywhere ( but soon to be everywhere ) polyurethane, but in -35 and +40 is not what he happens ... the car even justce did not, were all true ...
I don't listen to technicians. Recently there was a problem, so I just floor the car parts is not gained by listening to them. Owners of cars have to ask friends advised me to do which is trust. And so it was stratified, so he's cast not naselenii.
We have polyurethane in the first winter of the fibers... and he kept worse... rubber vypadaet sometimes...
And yet, silentbloc for what? to smooth out the vibrations does not polyurethane...
In normal service, will not take advantage, but rather put a recommendation to replace...
Thanks for the tip, I'll know, too, wanted all silenty replace with polyurethane, was just looking for where luchshe what to order))
In the subframe polyurethane is appropriate, but to leverage long walks. It was the experience on legacy.
Bormoglot57
About PU one citizen, in one of the forums everything is properly chewed:
"Let the details in plain language we will understand all the FORUM — what we offer in this case, manufacturers of poleuretana...
Table of Physico-mechanical properties of poleuretana used in suspension parts auto...
www.polyurethan.ru/index.php?show_aux_page=5
Name of the indicator PU
Shore hardness (scale A) 65-75 40-98
Modulus of elasticity tensile 100% 12 29
Ball rebound resilience (%) 30 40
Tensile strength at break (kg/cm2) 115 312
Tensile strength at break (%) 200 540
Strength resdir (method), N/mm 20 58
The coefficient frost resistance
for elastic recovery
after compression, at -50°C 0,2 0,45
Abrasion resistance (Scraper H22) 2 10
that nebylo not dopodomani cite the main conclusions with the link
Shore hardness:
ru.wikipedia.org/wiki/%D0...0%B0%D0%BD%D0%B8%D1%8F%29
in this case, it does not provide the range of temperature measurement but are we counting from +30 to -30 (temperature range of operation of the vehicle, in different regions it's different, but in my region REP. Khakassia is the average pokazateli) and clearly see that poliuretan at +30 will be approximately at the level of the gum, and at — 30 is almost comparable with ebonite (plastic), rubber while practically does not change its properties, if you take the average it is approximately +-10 % (roughly)
The modulus of elasticity in tension of 100%:
ru.wikipedia.org/wiki/%D0...3%D0%BE%D1%81%D1%82%D0%B8
and then what we see, the smaller this ratio the material is more intuitive, that is a constant, depending on the mode of oscillation. and again the + in side of the rubber.
Ball rebound resilience :
standartgost.ru/%D0%93%D0...9E%D0%A1%D0%A2%2027110-86
"The ratio of returned energy to the energy expended in deformation upon impact, expressed in % "
see that rubber will quickly return to its original position with maximum coefficient of absorption spent on it energy.
Tensile strength at break:
www.rtidoc.ru/index.php?o...&task=view&id=15&Itemid=9
Yes I agree but the plastic is harder to break...
Strength resdir (method), N/mm
Again I agree that poliuretan has a higher rate of resdir against the rubber, but the interaction of rubber with a metal outer cage bushings above with a low strength value raster, while poliuretan practically does not interact with the metal from this and we hear the creaking of...
The coefficient frost resistance by the elastic recovery after compression:
www.vashdom.ru/gost/13808-79/
it is generally accepted to measure in respect of rubber parts in milliseconds, and we again see that the rubber is faster to recover almost 2.5 times.
Abrasion resistance:
www.ngpedia.ru/id483720p1.html
of course higher abrasion resistance of poleuretana above as other material with similar charakteristikami against rubber.
We conclude from this in relation to poleuretana:
with less elasticity and time of reset, the low damping of the vibration.
WHAT WE get:
Almost impossible to set alignment, the low damping of the vibration, rapid wear of suspension parts as a result of vibration, the fatigue and deformation of metals sopryazhennykh suspension — the body and .d.
PS
I did not advise to put poliuretan, in this case just all based on personal experience of exploitation.
Well not really, the auto manufacturers are idiots, and engineers there are sheep and don't know what is Polyurethane suspension parts of the CAR, AND in fact poliuretan not new 10 years ago.
Why Amenitie manufacturers still do not use poliuretan suspensions in the auto — reply above...
note — the cost of a kilogram of polyurethane mixtures of different stiffness are much lower than rubber for making rubber are also different stiffness."
I think it is easy to understand!
The source myvibe.ru/board/index.php?topic=1159.255
From polyurethane salenow there is one, most significant superiority!
They have colors. They are not like stock, which means they are obviously better. Count how many times they are more expensive than rubber? Here is the number of times they are better.
The speaker in the link above, compares a spherical horse in vacuum. A "polyurethane" and some "rubber", although both of those there are tens of thousands brands/blends.
Go! )))
About PU one citizen, in one of the forums everything is properly chewed:
"Let the details in plain language we will understand all the FORUM — what we offer in this case, manufacturers of poleuretana...
Table of Physico-mechanical properties of poleuretana used in suspension parts auto...
www.polyurethan.ru/index.php?show_aux_page=5
Name of the indicator PU
Shore hardness (scale A) 65-75 40-98
Modulus of elasticity tensile 100% 12 29
Ball rebound resilience (%) 30 40
Tensile strength at break (kg/cm2) 115 312
Tensile strength at break (%) 200 540
Strength resdir (method), N/mm 20 58
The coefficient frost resistance
for elastic recovery
after compression, at -50°C 0,2 0,45
Abrasion resistance (Scraper H22) 2 10
that nebylo not dopodomani cite the main conclusions with the link
Shore hardness:
ru.wikipedia.org/wiki/%D0...0%B0%D0%BD%D0%B8%D1%8F%29
in this case, it does not provide the range of temperature measurement but are we counting from +30 to -30 (temperature range of operation of the vehicle, in different regions it's different, but in my region REP. Khakassia is the average pokazateli) and clearly see that poliuretan at +30 will be approximately at the level of the gum, and at — 30 is almost comparable with ebonite (plastic), rubber while practically does not change its properties, if you take the average it is approximately +-10 % (roughly)
The modulus of elasticity in tension of 100%:
ru.wikipedia.org/wiki/%D0...3%D0%BE%D1%81%D1%82%D0%B8
and then what we see, the smaller this ratio the material is more intuitive, that is a constant, depending on the mode of oscillation. and again the + in side of the rubber.
Ball rebound resilience :
standartgost.ru/%D0%93%D0...9E%D0%A1%D0%A2%2027110-86
"The ratio of returned energy to the energy expended in deformation upon impact, expressed in % "
see that rubber will quickly return to its original position with maximum coefficient of absorption spent on it energy.
Tensile strength at break:
www.rtidoc.ru/index.php?o...&task=view&id=15&Itemid=9
Yes I agree but the plastic is harder to break...
Strength resdir (method), N/mm
Again I agree that poliuretan has a higher rate of resdir against the rubber, but the interaction of rubber with a metal outer cage bushings above with a low strength value raster, while poliuretan practically does not interact with the metal from this and we hear the creaking of...
The coefficient frost resistance by the elastic recovery after compression:
www.vashdom.ru/gost/13808-79/
it is generally accepted to measure in respect of rubber parts in milliseconds, and we again see that the rubber is faster to recover almost 2.5 times.
Abrasion resistance:
www.ngpedia.ru/id483720p1.html
of course higher abrasion resistance of poleuretana above as other material with similar charakteristikami against rubber.
We conclude from this in relation to poleuretana:
with less elasticity and time of reset, the low damping of the vibration.
WHAT WE get:
Almost impossible to set alignment, the low damping of the vibration, rapid wear of suspension parts as a result of vibration, the fatigue and deformation of metals sopryazhennykh suspension — the body and .d.
PS
I did not advise to put poliuretan, in this case just all based on personal experience of exploitation.
Well not really, the auto manufacturers are idiots, and engineers there are sheep and don't know what is Polyurethane suspension parts of the CAR, AND in fact poliuretan not new 10 years ago.
Why Amenitie manufacturers still do not use poliuretan suspensions in the auto — reply above...
note — the cost of a kilogram of polyurethane mixtures of different stiffness are much lower than rubber for making rubber are also different stiffness."
I think it is easy to understand!
The source myvibe.ru/board/index.php?topic=1159.255
I'm sorry but as the practice of poliuretan full of guano benefit only in color and the trail native silenty go to about 60 and are not very expensive so why reinvent the Velos