LS1 clutch bleeding problems
Thread Starter
Teching In
Joined: Aug 2015
Posts: 5
Likes: 0
From: Gothenburg - Sweden
LS1 clutch bleeding problems Hi, I have an Trans Am 99 with a manual gearbox and I have just installed the Tick master cylinder and just needs to bleed the system. I did benchbleed it as good as possible before I installed it. I know tried to use the mityvac that I bought and I get bubbles. After a while when there are no more bubbles I release the vacuum and presses the clutch pedal several times. After this I put the mityvac in again and I get a lot of bubbles. I have been doing this for a while now and it seems the bubbles never stopes. As soon as it looks ok and I press the clutch, more comes out.
Also if the bubbles seems to be gone and I increase the vacuum preasure a little more, a lot of more bubbles comes out. This will take several hours I think, unless something is wrong so air get's in somehone?
When I press the clutch pedal it feels ok I guess, it comes up from the floor so not that it's stays down or so, which I guess it might do if there are to much air in the system, but I'm not sure I would dare to drive it. I still have to adjust the pedal and since it's now at it's shortest position I guess it might be difficult to bleed the system because of that?
Should I try and adjust it and run the vehicle and continue with the bleeding after or should it work even when the pedal is as it is now?
Also if the bubbles seems to be gone and I increase the vacuum preasure a little more, a lot of more bubbles comes out. This will take several hours I think, unless something is wrong so air get's in somehone?
When I press the clutch pedal it feels ok I guess, it comes up from the floor so not that it's stays down or so, which I guess it might do if there are to much air in the system, but I'm not sure I would dare to drive it. I still have to adjust the pedal and since it's now at it's shortest position I guess it might be difficult to bleed the system because of that?
Should I try and adjust it and run the vehicle and continue with the bleeding after or should it work even when the pedal is as it is now?
Staging Lane
Joined: Aug 2010
Posts: 68
Likes: 2
From: Hillsborough, NJ
I installed the Tick in my CETA - tried the same techniques as you with the mityvac with the same results. The long and short of it is - I had to get underneath the car (I have a kwiklift) and bleed the system the traditional way. I had my son working the pedal while I handled the bleed screw. The angle was difficult and I bought a few small and versatile 1/4" drive socket wrenches. I also tied the socket to the wrench as I had read stories about people dropping it into the bellhousing.
I also followed the instructions for getting that last bit of air out and my clutch pedal has been perfect for 2,000 miles.
Others may have had success with the mityvac - I didn't.
I also followed the instructions for getting that last bit of air out and my clutch pedal has been perfect for 2,000 miles.
Others may have had success with the mityvac - I didn't.
Thread Starter
Teching In
Joined: Aug 2015
Posts: 5
Likes: 0
From: Gothenburg - Sweden
I gave up on the mityvac and did it the traditional way. I was by my own, but a piece of wood and the electric seat made it possible to hold the clutch down while I opened the screw. I also let it be open for a while and let gravity run some fluid in it. The clutch feels ok, so I hope it worked
