Help with leaky F1 actuator shift boot

Rubbing is possibly due to failed motor mount(s)?
When they fail, the assembly rides lower in the chassis.

 

Ken,

The boot is just for dust protection right? The seal is the issue?

 

Always remember: Oil is cheap.

 

I'm not sure i understand . I just removed this part from my transmission before Ctually disconnecting the gb. So it can be taken apart.

 

I replaced that seal on my car two years ago. Did it in the garage and the actuator should not be jammed in and unmovable. If it is jammed in there, you have other issues that need attention.

Edit: BTW, you will need and SD1 centering if you move that actuator.

 

Hi Gents,

I finally have my 1999 355 F1 back from the body shop and put it up on the rack to have a look underneath. I see trans fluid coming from the actuator dripping from the threaded pin.

I cleaned everything up and the next day see it again dripping from the pin (did not drive it). I has been in the body shop since September last year and not driven at all (here it is Feb). That's the first thing that usually causes gaskets to fail (no lubrication and they dry out).

Is there a rubber seal around that pin? I did not see it on Ricambi's site.

Thanks, Boaf

 

Hi Gents,

I finally have my 1999 355 F1 back from the body shop and put it up on the rack to have a look underneath. I see trans fluid coming from the actuator dripping from the threaded pin.

I cleaned everything up and the next day see it again dripping from the pin (did not drive it). I has been in the body shop since September last year and not driven at all (here it is Feb). That's the first thing that usually causes gaskets to fail (no lubrication and they dry out).

So my questions:

1. I see a split in the rubber seal that goes around the threaded rod. I did not see it on Ricambi's site. Anybody know a part number?
   
2. My concern is if I do it myself, all the fluid will come out and (I assume) will need to be filled and need to be re-calibrated with an SD or Leonardo. Is that right?

Thanks,

Boaf

 

Love to help.

What is a threaded rod?

 

Picture coming, but the part number for the rod is #169221 (table 27 on Ricambi). I need the rubber bushing (or plastic) that goes around the rod, it is split. I appreciate it.

Boaf

 

That is an actuator stud and it holds the head shield. The oil is likely leaking from the shift shaft seal, dripping down onto the heat shield and wicking down on that stud.

See green arrow

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I just went through this last year. The tech had to use a floor jack to get...just enough... play with the motor mounts to get the actuator off it’s mounting studs. We marked everything with paint and put it back exactly to avoid doing in SD calibration.

The fluid will not come out. Pull and replace the little seal and boot.

 

Thanks, I will give it a try after confirming one more thing.

I cleaned the fluid off and wiped it down for completely dry. When I went out this morning and saw the fluid, I pulled the cover off. Fluid was dripping down the stud, however, fluid was also coming out of the overflow, and the overflow was touching the stud.

So isolated the overflow from the stud, and we sill see if it is the overflow or a leak. Hoping for the overflow....Thinking the body shop topped of the fluid as part of service.

Boaf

 

So I guess this is good news. The leak is coming from the overflow (it seams). Attached a photo. I am hopeful once the fluid level's out, the overflow will subside.

Interested to hear your thoughts.

Boaf
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Good news indeed !

 

Happens a lot. People who do not know how much to fill these shouldn't.

 

I am confused. How do we fill these?

 

I believe this is similar to the brake system. Given the system has an accumulator, the tank needs enough room to allow the discharge of the accumulator to drain back to the tank and not overflow. So, if people get the F1 system charged (accumulator full) and then fill the tank, when the accumulator discharges the tank overflows.

 

Dave, that makes sense to me. It's like filling a hydraulic lift. If you fill the tank with the lift in the wrong position, it will leak out the excess that has no place to go.

Boaf

 

I worked on helicopters for years, that drain tube is there for a reason to drain.
I have no idea what the manual would say if it would at all but all hydraulics have a leak limit while operating and while standing still not being operated.

If this thing drips a little and you have a tiny spot on the floor that's expected.

If it was a leak or say an internal failure, your system would drain out all over the floor you would know you have a issue.

That's my opinion from being a hydraulic mechanic for years on Helicopters.


Id love to yank my F1 parts out and dissect them but I'm way to poor to gamble like that.

 

Johnny - I don't believe the brake system as a drain tube like that - does it?

 

No Brakes do not.

 

As said above Johhny many people let the system pressure and fill then it overflows and not a little but more like an ounce or two depending on how over full you got it.

Had a few friends do this