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LAZY CLUTCH PEDAL
Posted: Fri Apr 20, 2018 7:49 pm
by iambacktolife
I have bought a 2007 Honda FRV 2.0 Diesel. I don't intend to go into likes and dislikes about the car, but overall I like it and intend to keep it for a while.
The gears are able to shift quite easily while in motion. There is a problem with the clutch pedal. If it is depressed for up to 10 seconds or more while waiting at the stop lights, it falls. At this point shifting the gear is very difficult or not possible depending on how low it has fallen. However, if you lift it up using your foot, it shifts quite smoothly again.
I was told to bleed the clutch as it may have air traps. I have done this, but the problem still exists. I have greased the pedal up to the point where it slips into the master cylinder. I have made sure the mat is not in the way.
What could be the problem? What should be the next thing to do?
Thanks in advance
Re: LAZY CLUTCH PEDAL
Posted: Fri Apr 20, 2018 10:28 pm
by dewaltdisney
It sounds like it is the hydraulic fluid creeping past the valve on the clutch cylinder. When the clutch is depressed for any length of time the fluid creeps past and prevents the clutch pedal rising and the clutch engaging. Over a period the spring pressure pulls the pedal up and the fluid creeps back and it will work again.
That is my theory but I do not know for sure
DWD
Re: LAZY CLUTCH PEDAL
Posted: Fri Apr 20, 2018 10:39 pm
by iambacktolife
Thanks ..
This is a good response and possible diagnosis. Are you suggesting a leakage somewhere? Or an internal leakage? I haven't seen any
What do you propose I do or change? The Cylinder? Or the weak spring?
Thanks again
Re: LAZY CLUTCH PEDAL
Posted: Fri Apr 20, 2018 11:13 pm
by dewaltdisney
It could be scoring on the walls of the clutch cylinder or the washer split allowing fluid to creep back and forth. I would have it checked by a mechanic though as I would not want you to buy parts on my suggestion which might be totally wrong.
DWD
Re: LAZY CLUTCH PEDAL
Posted: Sat Apr 21, 2018 7:40 am
by iambacktolife
dewaltdisney wrote:It could be scoring on the walls of the clutch cylinder or the washer split allowing fluid to creep back and forth. I would have it checked by a mechanic though as I would not want you to buy parts on my suggestion which might be totally wrong.
DWD
Awesome. Thankfully
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Re: LAZY CLUTCH PEDAL
Posted: Sat Apr 21, 2018 8:02 am
by fin
my old transit did similar. eventually the clutch would dissapear. if i pumped the pedal a few times it would come back and work as normal. then eventually no good. pump the pedal a few times and all was good.
the master cylinder was goosed.
it could be the master or the slave though in your case
Re: LAZY CLUTCH PEDAL
Posted: Sat Apr 21, 2018 8:08 am
by Bob225
75% of the time it will be the slave cylinder weeping iirc its on the outside on the gear box on the FR-V , pop the rubber bellows off and see if its wet
Its a 2 min job up on a ramp to check it
Re: LAZY CLUTCH PEDAL
Posted: Sat Apr 21, 2018 8:17 am
by iambacktolife
fin wrote:my old transit did similar. eventually the clutch would dissapear. if i pumped the pedal a few times it would come back and work as normal. then eventually no good. pump the pedal a few times and all was good.
the master cylinder was goosed.
it could be the master or the slave though in your case
I am grateful for that input.
Thank God it is not a full clutch disk issue. I will consider changing the master cylinder 1st and then the slave if it persists. Or do you reckon I change both at the same time? Does it matter?
Thankfully
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Re: LAZY CLUTCH PEDAL
Posted: Sat Apr 21, 2018 8:33 am
by dewaltdisney
I would check the slave cylinder as Bob suggests first. Also check behind the carpet under the clutch pedal as the fluid can leak past the actuating rod and soak into the underside of the carpet unseen. It is unlikely they both have gone.
DWD
Re: LAZY CLUTCH PEDAL
Posted: Sat Apr 21, 2018 8:41 am
by iambacktolife
dewaltdisney wrote:I would check the slave cylinder as Bob suggests first. Also check behind the carpet under the clutch pedal as the fluid can leak past the actuating rod and soak into the underside of the carpet unseen. It is unlikely they both have gone.
DWD
Straight away. I will check for leakage under the carpet. Will feedback sooner than later.
So grateful
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Re: LAZY CLUTCH PEDAL
Posted: Sat Apr 21, 2018 10:06 am
by Bob225
The clutch slaves get the abuse, with all the gunk off the road being thrown up under the car, plus with the snow this year there has been a lot of salt about
If it was anything major you would notice a drop in fluid and the pedal will feel very different
Re: LAZY CLUTCH PEDAL
Posted: Sat Apr 21, 2018 3:20 pm
by iambacktolife
Bob225 wrote:The clutch slaves get the abuse, with all the gunk off the road being thrown up under the car, plus with the snow this year there has been a lot of salt about
If it was anything major you would notice a drop in fluid and the pedal will feel very different
I have made a visual check under the pedal as recommended earlier. There is no visible leakage.
In the coming week, I will take it to the mechanic to check out the rest.
I am much grateful for all your help.
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Re: LAZY CLUTCH PEDAL
Posted: Sat Apr 21, 2018 6:27 pm
by aeromech3
I am assuming the clutch has a reservoir and the level is good and fluid clear, also the breather hole is not blocked (can remove the cap and check the clutch action).
If there are no external leaks and fluid level is constant, then the only place the fluid can pass without loss is from one side to other is in the master!
This is rare and likely only if the wrong fluid has been used ( not talking DOT #s but the type) then the fluid colour should be darker from rubber deterioration and wrong fluid type.
Re: LAZY CLUTCH PEDAL
Posted: Sat Apr 21, 2018 6:36 pm
by Dave54
I thought about this, and the possibilities seem have been pretty well covered.
One other "possible" (not likely though) is that a flexible hose outer case is "ballooning" under pressure through a pinhole in the inner.
Re: LAZY CLUTCH PEDAL
Posted: Sat Apr 21, 2018 6:56 pm
by iambacktolife
Great exposure. Fantastic details coming through.
The fluid level remains the same when the pedal is pumped. Also there is no discolouration so I suppose the correct fluid has been used.
Could it be that the master is not giving enough pressure to return the pedal to the up position?