Jeep YJ Brake Master Cylinder and Brake Bleed
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- Опубліковано 14 жов 2024
- Watch Jim remove and replace the master cylinder on this 1989 YJ. Complete brake bleeding procedure and discussion on brake fluid and brake fluid change frequency.
Brake bleeding kit:
Mityvac MV6835 Premium Pneumatic Air Operated Brake and Clutch Bleeding Kit
Bill Hirsch Automotive Paint
www.hirschauto.com
Thank you Jim I really enjoyed watching your videos very useful.
Thanks! More coming, I've been crazy busy...
A good tech tip for older vehicles is to use DOT4 instead of DOT3. The DOT4 is functionally a drop in replacement for DOT3 and is less hygroscopic.
Yep...agree... I notice that there is a bunch of rust that ends up in the cast iron calipers, etc...and the fluid turns an orange color (iron oxide)... Also, the moisture in the fluid effects the compression and you'd get a squishy pedal... Thanks for the comment!
Great video thanks!
You are welcome! Thanks for watching.
Did you not bench bleed it?
No. With a power bleeder, it was not necessary. The vacuum formed by pulling the fluid through will also pull the air out. Of course if you don't have a tool like that, a full bench bleed is a must.
Why attach first ?? Seems like potential for accident bending lines if dropped
Either way would be ok. Those lines are pretty tough steel and they don't bend too easy. I chose to do it this way as they seemed easier to get back into the ports without undue stress.
Why did you not do a bench bleed on the master prior to installing it?
With a power bleeder you don't have to bench bleed. The vaccum of the bleeder will.suck the air out of the system and pull.fluid through. One of the awesome things about the power bleeder. .I've never had an issue with air left in the system.
@@jimsjeeps9782 OK, Thanks! Please keep making more YJ content.
What size were the nuts to the brake lines? No wrench I use works.
Let me check. I will post here, but for sure use a line wrench.
Mine are 1/2" ... definitely use a line wrench...it grabs on more corners.