greg5436
06-11-2012, 06:51 PM
Wondering if anyone has had this problem.wilwood master cylinder,no booster.
First time going down a long hill decided to hit brakes hard,jammed on pedal first hit lost half of pedal second hit no pedal at all.thought I had broke a line or hose.I was five miles away from my house, started driving home when I pulled in my driveway hit the brakes had half pedal first hit and full pedal second hit.check over everything did not find nothing wrong.wrote it off maybe air pocket in master.
Went to car show in tennessee this last weekend.20 miles into a cruise something happened again.pulled over let everyone go by.took off again 5 miles later brakes worked fine again.
Next morning got in car to go to show drove 1 block,stopped to get ice,got back into car no pedal again,drove to show 2 miles still no pedal.I removed master cyl. Lid told someone push on the pedal slow to see what was happening.he said the pedal was fine.so right then when I removed lid the brakes worked immediately. Kyle from DSE was there told him story and he said never heard of that.
That evening drove 15 miles to race track to watch DSE autocross event.drove all the way there just fine.when I was parking the car pedal felt funny.pushed it again, no pedal once again. Pushed 20 times still no pedal.popped the hood loosened up the master lid bolts 2 turns,went back in car and the first hit had perfect pedal again. So I thought is there a vacuum building up inside the master?I removed the lid and poked a few small holes with the small Allen wrench in the rubber boot. Drove it back later and no problem yet.
Called wilwood said they had never heard of this. Just wondering any suggestions or if someone has had a similar problem like this. It is a twin turbo car but it is not heat related like some of my other problems. Thanks for any advice. Greg
First time going down a long hill decided to hit brakes hard,jammed on pedal first hit lost half of pedal second hit no pedal at all.thought I had broke a line or hose.I was five miles away from my house, started driving home when I pulled in my driveway hit the brakes had half pedal first hit and full pedal second hit.check over everything did not find nothing wrong.wrote it off maybe air pocket in master.
Went to car show in tennessee this last weekend.20 miles into a cruise something happened again.pulled over let everyone go by.took off again 5 miles later brakes worked fine again.
Next morning got in car to go to show drove 1 block,stopped to get ice,got back into car no pedal again,drove to show 2 miles still no pedal.I removed master cyl. Lid told someone push on the pedal slow to see what was happening.he said the pedal was fine.so right then when I removed lid the brakes worked immediately. Kyle from DSE was there told him story and he said never heard of that.
That evening drove 15 miles to race track to watch DSE autocross event.drove all the way there just fine.when I was parking the car pedal felt funny.pushed it again, no pedal once again. Pushed 20 times still no pedal.popped the hood loosened up the master lid bolts 2 turns,went back in car and the first hit had perfect pedal again. So I thought is there a vacuum building up inside the master?I removed the lid and poked a few small holes with the small Allen wrench in the rubber boot. Drove it back later and no problem yet.
Called wilwood said they had never heard of this. Just wondering any suggestions or if someone has had a similar problem like this. It is a twin turbo car but it is not heat related like some of my other problems. Thanks for any advice. Greg