Afternoon all,
So the roof saga continues....
I've had an electrician check all the microswitches are reading/responding and they are.
Suspected the motor might be weak, so obtained one from Enright. This seemed to improve things, but there is still a hesitation (funnily enough at same point they demo in the youtube video) when the rear window is approaching the vertical.
Seems like there is resistance, however manual operation of the roof does not suggest any resistance. Hence we thought maybe flat spot in motor causing Hall Sensor to trip the power.
(Ignition cut was one of the faults that showed up).
Been doing more investigation today, and there seem to be signs of hydraulic fluid on the top of the rams which move the roof. (Boot lid seems to move fine).
I would assume that tiny signs of fluid on the rams might be expected, however they should probably seal so you wouldn't see any fluid sitting on the top of the piston. Is that a reasonable assumption?
My next theory is that weeping from one/both hydraulic ram, could cause enough loss of pressure to slow the mechanism down, thus tripping the power to the roof and bringing things to a halt.
Before i buy more bits, does this sound a reasonable theory, or more a case of clutching at straws?!
I took a video but not sure 45mb will load on here....
Tks in advance,
Matt
Roof hydraulic rams..?
-
mattau
- Posts: 96
- Joined: Fri Feb 08, 2013 6:42 pm
- Location: Bromley, SE London
-
Capncol
- Posts: 3761
- Joined: Fri Nov 11, 2011 12:40 pm
- Location: Reading & Southampton
Re: Roof hydraulic rams..?
If the rams are leaking then you should sort that out in any case. I wouldn't have thought it would effect the roof operation too much unless it is peeing out.
Cheers Col.
206cc 1.6ltr (Wifes toy)
Mercedes ML (workhorse)
Corvette C3 (my toy)
When requesting help of a technical nature, please give as much detail of the fault as possible along with details of exact model, engine size & type, gearbox, year, mileage, and any relevant work carried out to try to solve the problem to help us help you.
Better still, put the details in your signature.
206cc 1.6ltr (Wifes toy)
Mercedes ML (workhorse)
Corvette C3 (my toy)
When requesting help of a technical nature, please give as much detail of the fault as possible along with details of exact model, engine size & type, gearbox, year, mileage, and any relevant work carried out to try to solve the problem to help us help you.
Better still, put the details in your signature.
-
mattau
- Posts: 96
- Joined: Fri Feb 08, 2013 6:42 pm
- Location: Bromley, SE London
Re: Roof hydraulic rams..?
Tks Capncol.
It's not peeing out. I have run the cycle half way up and then back down a few times, and there is a few ml of fluid collecting on the top of the ram.
Since the mechanism seems quite sensitive, i assumed that any drop in pressure might be enough to throw things off?
Is it normal to have a totally dry top to the ram then?
Not sure this adds anything to the diagnosis, but i have uploaded a video of what happens when roof opened.
http://youtu.be/f5HujnANA7g
Should be live in the next few minutes.
Cheers
Matt
It's not peeing out. I have run the cycle half way up and then back down a few times, and there is a few ml of fluid collecting on the top of the ram.
Since the mechanism seems quite sensitive, i assumed that any drop in pressure might be enough to throw things off?
Is it normal to have a totally dry top to the ram then?
Not sure this adds anything to the diagnosis, but i have uploaded a video of what happens when roof opened.
http://youtu.be/f5HujnANA7g
Should be live in the next few minutes.
Cheers
Matt
-
Capncol
- Posts: 3761
- Joined: Fri Nov 11, 2011 12:40 pm
- Location: Reading & Southampton
Re: Roof hydraulic rams..?
What is the problem with the roof? (other than the leak)
Was that you reversing the direction of the roof? If so that's one way to give yourself a problem.
Was that you reversing the direction of the roof? If so that's one way to give yourself a problem.
Cheers Col.
206cc 1.6ltr (Wifes toy)
Mercedes ML (workhorse)
Corvette C3 (my toy)
When requesting help of a technical nature, please give as much detail of the fault as possible along with details of exact model, engine size & type, gearbox, year, mileage, and any relevant work carried out to try to solve the problem to help us help you.
Better still, put the details in your signature.
206cc 1.6ltr (Wifes toy)
Mercedes ML (workhorse)
Corvette C3 (my toy)
When requesting help of a technical nature, please give as much detail of the fault as possible along with details of exact model, engine size & type, gearbox, year, mileage, and any relevant work carried out to try to solve the problem to help us help you.
Better still, put the details in your signature.
-
mattau
- Posts: 96
- Joined: Fri Feb 08, 2013 6:42 pm
- Location: Bromley, SE London
Re: Roof hydraulic rams..?
The bootlid opens fine, but when the window section gets vertical, it hesitates, and i get a beep. If i keep it going, it moves hydraulically a bit further, hesitates again and then gravity takes it into the boot.
Bootlid then won't go down, and it just beeps.
Then i have to manually do the roof.
I reversed direction to avoid having to lift roof out of the boot (again).
Having checked the roof manually with assistance there is no apparent reason for hesitation, hence the thought process of the motor.
Now that Enrights (good) motor is in, that's another thing checked off the list.
I wondered then whether the possible loss of hydraulic pressure might cause the hesitation, and stop.
Bootlid then won't go down, and it just beeps.
Then i have to manually do the roof.
I reversed direction to avoid having to lift roof out of the boot (again).
Having checked the roof manually with assistance there is no apparent reason for hesitation, hence the thought process of the motor.
Now that Enrights (good) motor is in, that's another thing checked off the list.
I wondered then whether the possible loss of hydraulic pressure might cause the hesitation, and stop.
-
mattau
- Posts: 96
- Joined: Fri Feb 08, 2013 6:42 pm
- Location: Bromley, SE London
Re: Roof hydraulic rams..?
One other thing i have just considered.
I noticed some advice from Reap (back in 2006) regarding doing the manual close of the roof.
He says to then close and lock the car (for 10mins) to put BECM into sleep mode.
As car is garaged i haven't been locking it.
DOes anyone know if BECM will stay "awake" if i am not locking it?
Tks
Matt
I noticed some advice from Reap (back in 2006) regarding doing the manual close of the roof.
He says to then close and lock the car (for 10mins) to put BECM into sleep mode.
As car is garaged i haven't been locking it.
DOes anyone know if BECM will stay "awake" if i am not locking it?
Tks
Matt