The process of fixing the sins of the PO continues. My approach since buying this car has been to work on things in the order that they present themselves as I take the car on ever increasing length journeys. So far we have tackled: Carburation Electrical Cooling Suspension Now comes the brakes...specifically to much brake... As my journeys have increased I find I developed a really hard pedal. After doing some research I believe it is the master pushrod free play. It could be a wheel cylinder or the master cylinder itself, but there definitely needs to be more free play. So i figure I will start there. I have been wanting to clean up that cobbled together mess anyway. Simple job right? Just pull the cotter pin, pull the pin, slide the push rod out, grind it down, re***emble and test... simple....WRONG!!! I pulled the cotter pin but the clevis pin will not come out... I dont think there is a bushing and the two parts have rusted/welded themselves together. Over the last 3 days I have tried: BP blaster Gibbs Kroil Deep creep Wd40 Lots of force (both hammer and C-clamp) The only thing I haven't tried is heat...mainly because I have a very healthy respect for applying fire to the underside of my car...near the wood floor, painted parts, brake parts, etc...inside my garage...attached to my house...lol I am trying to avoid removing the entire ***embly and drilling it out of I can help it. Anyone have a surefire way to break these parts loose? I even considered that the pin may be threaded but there is nothing to put a wrench on and i can't get it to turn by sticking a punch in the cutter pin hole and prying on it. It seems like it's always the seemingly simple jobs that give me the biggest fits Chappy
When I took mine apart the pin had been worn down by the rod end. It had a "step" worn into it. Does the pin turn? You may have to lift and wiggle the rod end while pulling the pin out.
If it doesn't turn, you could take a little strap of steel, drill a hole the size of your pin, weld the strap to the pin and twist it out.
If there is pressure on the pin it could jam it in. Try loosening the master to relieve pressure on the pin. Sent from my iPhone using H.A.M.B.
You can try welding a bolt to the pin, that will put some heat on it and give you something to put a wrench on. If that frees it up just cut the bolt off, clean it up with a file and push it out.
How about putting some shims under the master cyl bolts to create some slack? Just temporary to see if it fixes the hard pedal problem. If it doesn't you can leave the pin in there.
Pull the cross shaft that the brake and clutch pedals swing on and pull the whole brake pedal out if u can then work on it in a vice
I thought the same thing and relieved pressure and tried prying it around. I can get a very small amount of side to side movement, but the clevis and pin move together. I can not get any "up/down" movement of the clevis on the pin. Chappy
I did this exact thing. Stacked two washers between the master mount brackets and the master mount flange. Pedal got very soft, not great, but much better. I figured I still needed to adjust and bleed the system but I didnt wanted everything to be in its proper position before I did all that. I am not convinced that this is my only problem but, I know it is wrong as is so I was going to fix it first. Chappy
Thanks for all the ideas gents. I will try welding something to it and see where that gets me... Anyone else ever wonder why everything that needs welding is overhead in a confined area? On TV it's always on the bench...LOL Chappy
The Jalopy Journal
