Hydraulic TO Bearing and clutch pedal travel Help... - Lateral-g Forums

Fluid Power · #1 10-18-2011, 06:07 AM

I have not had a chance to dig my notes out and look. I apologize. (I am reading/writing this while attending a phone meeting at work!) If I remember correctly, the RAM website has the installation instructions that you can print. I will do my best to get something tonight. If it is leaking, my guess is your travel on the clutch pedal is greater than the travel on the RB. It causes it to force fluid pass the o rings. As Andrew said, remove and rebuild (kits are cheap $13 or less) How ever, unless someone has a trick to install an o ring on an INTERNAL undercut, your best bet is to send it back to RAM and have them repair it. Ask me how I know.

Darren

GrabberGT · #2 10-18-2011, 08:14 AM

Must be the nature of internal HTO bearings. Mine, a Mcleod for a T5 did the same thing. After messing with it for 2 years, I finally threw in the towel and went with an external slave. So much nicer now that I can make adjustments without having to rip the bottom of the car apart to do it.

Anyone want to buy a used McLoed unit?

**andrewb70** · #3 10-18-2011, 09:14 AM

Tom,

I would look into the Howe TOB. I like its design which incorporates a travel stop. It is also advertized as having up to .750" of travel. My Quarter Master TOB has also been quite reliable. The only time it failed is when I over-traveled it which cut the seal. The downside to the Quarter Master TOB is the rather limited travel. Thankfully my LS7 clutch doesn't need much for release, but some clutches may need up .5" of travel at the fingers to fully release. I don't have first hand experience with the Ram or McLeod, but the reviews online seem to be mixed at best.

Andrew

Tom.A · #4 10-18-2011, 11:01 PM

I pulled the trans tonight and it looks like the inner seal came apart?
The travel stop is intact so I am not sure what happened. I think I will replace the bearing because I am not really sure how to get the bearing apart

Fluid Power · #5 10-19-2011, 09:31 AM

2 things happened.

Overstroked, causing the fluid to push past the o ring -or- the o ring was damaged on installation when putting it on the input shaft. Either way, call RAM, talk to tech and send it them. They will inspect and rebuild for you. Trust me, it is a ton easier to have RAM do it than do it yourself.

I cannot find my cheat sheets for my install. I must have put them away so i would not loose them and lost them. I will keep digging.

Good Luck. I do have extra shims if you need them however.

Darren

**andrewb70** · #6 10-19-2011, 01:02 PM

It is hard to imagine how the bearing could have been over-traveled when it has the big clip in place to prevent this from happening. Here is a picture of my Quarter Master bearing:

The design is very similar to the Ram but without the travel stop ring.

Tom, did you press off the actual bearing or was it on there kind of loose?

Andrew

Tom.A · #7 10-19-2011, 10:57 PM

Darren, thanks for the offer on the shims but Ram says my new bearing will come with both sizes. I plan to send the old bearing to them to rebuild for a spare. I don't expect that they can confirm why it failed. I believe that it could be something with alignment or damaged while installing the gear box. I have had the trans on /off several times and it normally is a wrestling match.

Andrew,
The Ram bearing face just pushes on and off with little effort but it slides over the outer shoulder as shown in picture below. I thought they were all like that?

Fluid Power · #8 10-21-2011, 11:05 AM

Quote:

Originally Posted by andrewb70

It is hard to imagine how the bearing could have been over-traveled when it has the big clip in place to prevent this from happening. Here is a picture of my Quarter Master bearing:

The design is very similar to the Ram but without the travel stop ring.

Tom, did you press off the actual bearing or was it on there kind of loose?

Andrew

Andrew, What I meant to say was that if he was not using a pedal stop, the travel on the master cylinder allowed the RB to reach the end of its stroke. (held in place by the snap ring) Since the fluid doesn't compress, it continues to flow through the RB and out around (and damaging) the O ring in the process.

Darren

Tom,

My experience with RAM is they are all like that. The bearing comes off really easy.