Crap to Cream, MGB servo rebuild, engine runs rough, just replaced the brake M/C? Here's the answer

[@raulthepig5821]

Never thought about the servo causing your engine to run rough. Now I think about it I understand. Bravo. I have a perfectly fine '75 MGB that has sat for 30 years. I replaced the single Zenith carb with a rebuilt set and replaced all of the hoses and yet it still runs like it has an air leak. Although the brakes work fine I suppose I'll need to investigate the servo for leaks. Thanks for your video. Hopefully it has put me on the right path.

[@CrapToCream]

Morning Raul, if this assists my work here is done. I’m glad you have got something out of my video. I fitted the Weber and after that was when I knew there was something else amiss, I never considered the servo as the culprit either. Cheers Marty

[@johndeaverfilms9220]

Absolutely uncanny, I literally made the exact same mistake yesterday, leaving the seal on my old master. mine is a 76' I jumped up from my computer and ran outside at 4:30 AM to find the master cyder and sure enough...the seal was sticking on. And I was on here looking for how to rebuild a servo. Thanks you so much for the info. John Birmingham, Alabama

[@CrapToCream]

@@johndeaverfilms9220 brilliant, I love it when a plan comes together, that was uncanny. Everything happens for a reason. Cheers Marty

[@charlesfarran8942]

Congratulations on reaching 100 videos! This one was a very helpful "putting back together" exercise re the Servo unit which brought the pages of the manual to life & saved as a useful point of reference.Fortunately mine still seems to be working after 44 years & so far have only had to change the hose from the servo to the manifold. Well done! Cheers,Charles

[@CrapToCream]

Thank you Charles, on both counts. I find it so satisfying when I find the root cause of a problem that I am or was having, and so frustrating when I don't find something. When I removed the servo and stripped it and didn't find anything obvious wrong It was starting to really get to me to understand what was wrong, then when I found the problem, I was "How come I didn't notice this when I removed the old master cylinder", when you see it, it's so obvious. Anyway that's why I added the bit on the end, that was the most satisfying part of the video for me.