[old-chevy-truck] Master Cylinder problems
I have '51 3600 with very low brake pedal. First push goes almost all the way to floor but after I pump a few times I have good brake pedal. I have recently put a new kit in master cylinder with no luck. Master cylinder has been sleeved before so may have excess wear. I bench bled before installation and have bled all the wheel cylinders. Any thoughts would be greatly appreciated. If I need a new MC anyone have any thoughts on where. Ole Chevy and GMC trucks rule! To unsubscribe, send an email (with no subject, no body, just the email), to: old-chevy-truck-unsubscribe@yahoogroups.comYahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/old-chevy-truck/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/old-chevy-truck/join (Yahoo! ID required) * To change settings via email: old-chevy-truck-dig...@yahoogroups.com old-chevy-truck-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: old-chevy-truck-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [old-chevy-truck] Master Cylinder problems
sounds like air in the lines to me. From: old-chevy-truck@yahoogroups.com [old-chevy-truck@yahoogroups.com] on behalf of hwtrimbl [hwtrim...@comcast.net] Sent: Sunday, August 26, 2012 5:36 PM To: old-chevy-truck@yahoogroups.com Subject: [old-chevy-truck] Master Cylinder problems I have '51 3600 with very low brake pedal. First push goes almost all the way to floor but after I pump a few times I have good brake pedal. I have recently put a new kit in master cylinder with no luck. Master cylinder has been sleeved before so may have excess wear. I bench bled before installation and have bled all the wheel cylinders. Any thoughts would be greatly appreciated. If I need a new MC anyone have any thoughts on where. Ole Chevy and GMC trucks rule! To unsubscribe, send an email (with no subject, no body, just the email), to: old-chevy-truck-unsubscribe@yahoogroups.comYahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/old-chevy-truck/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/old-chevy-truck/join (Yahoo! ID required) * To change settings via email: old-chevy-truck-dig...@yahoogroups.com old-chevy-truck-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: old-chevy-truck-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [old-chevy-truck] Master Cylinder problems
Check and re-check the brake adjustment on all wheels; I adjust the shoes to just touch the brake drum, then back off a click or two. Then rotate the drum around 360 degrees to make sure the shoe is not dragging anywhere. I believe that if you can pump it up, it has air in the system .somewhere. I know you'd bleed starting from the furthest wheel first. Bill in Oregon _ From: old-chevy-truck@yahoogroups.com [mailto:old-chevy-truck@yahoogroups.com] On Behalf Of hwtrimbl Sent: Sunday, August 26, 2012 2:37 PM To: old-chevy-truck@yahoogroups.com Subject: [old-chevy-truck] Master Cylinder problems I have '51 3600 with very low brake pedal. First push goes almost all the way to floor but after I pump a few times I have good brake pedal. I have recently put a new kit in master cylinder with no luck. Master cylinder has been sleeved before so may have excess wear. I bench bled before installation and have bled all the wheel cylinders. Any thoughts would be greatly appreciated. If I need a new MC anyone have any thoughts on where. [Non-text portions of this message have been removed] Ole Chevy and GMC trucks rule! To unsubscribe, send an email (with no subject, no body, just the email), to: old-chevy-truck-unsubscribe@yahoogroups.comYahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/old-chevy-truck/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/old-chevy-truck/join (Yahoo! ID required) * To change settings via email: old-chevy-truck-dig...@yahoogroups.com old-chevy-truck-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: old-chevy-truck-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [old-chevy-truck] Master Cylinder problems
When this happened to me it was my master cylinder. It was completely shot. It was amazing that the truck stopped at all. Testament to the great simple engineering of old American trucks. Anyway, we stuck in a rebuilt one and it bled up and got firm right away and now it stops on a (very large and slow) dime. So, as obvious as this probably sounds, I guess it pays to check the integrity of each individual component. On Aug 26, 2012, at 2:36 PM, hwtrimbl hwtrim...@comcast.net wrote: I have '51 3600 with very low brake pedal. First push goes almost all the way to floor but after I pump a few times I have good brake pedal. I have recently put a new kit in master cylinder with no luck. Master cylinder has been sleeved before so may have excess wear. I bench bled before installation and have bled all the wheel cylinders. Any thoughts would be greatly appreciated. If I need a new MC anyone have any thoughts on where. [Non-text portions of this message have been removed] Ole Chevy and GMC trucks rule! To unsubscribe, send an email (with no subject, no body, just the email), to: old-chevy-truck-unsubscribe@yahoogroups.comYahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/old-chevy-truck/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/old-chevy-truck/join (Yahoo! ID required) * To change settings via email: old-chevy-truck-dig...@yahoogroups.com old-chevy-truck-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: old-chevy-truck-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [old-chevy-truck] Master Cylinder problems
When I install a master cylinder in these trucks, I have a small tubing setup that pushes brake fluid into the second stage of the cylinder to help prime the system. So, I fill the cylinder, attach the cutoff brake line that goes from the output of the cylinder BACK into the fill hole, pump it several times. This helps bleed the air out of the bottom part of the cylinder before bleeding the system. An old trick I learned from an old timer who knew his stuff. Anyone else do this? Deve www.speedprint.com/Deves50 -Original Message- From: old-chevy-truck@yahoogroups.com [mailto:old-chevy-truck@yahoogroups.com] On Behalf Of Jonas Thaler Sent: Sunday, August 26, 2012 6:23 PM To: old-chevy-truck@yahoogroups.com Subject: Re: [old-chevy-truck] Master Cylinder problems When this happened to me it was my master cylinder. It was completely shot. It was amazing that the truck stopped at all. Testament to the great simple engineering of old American trucks. Anyway, we stuck in a rebuilt one and it bled up and got firm right away and now it stops on a (very large and slow) dime. So, as obvious as this probably sounds, I guess it pays to check the integrity of each individual component. On Aug 26, 2012, at 2:36 PM, hwtrimbl hwtrim...@comcast.net wrote: I have '51 3600 with very low brake pedal. First push goes almost all the way to floor but after I pump a few times I have good brake pedal. I have recently put a new kit in master cylinder with no luck. Master cylinder has been sleeved before so may have excess wear. I bench bled before installation and have bled all the wheel cylinders. Any thoughts would be greatly appreciated. If I need a new MC anyone have any thoughts on where. [Non-text portions of this message have been removed] Ole Chevy and GMC trucks rule! To unsubscribe, send an email (with no subject, no body, just the email), to: old-chevy-truck-unsubscribe@yahoogroups.comYahoo! Groups Links Ole Chevy and GMC trucks rule! To unsubscribe, send an email (with no subject, no body, just the email), to: old-chevy-truck-unsubscribe@yahoogroups.comYahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/old-chevy-truck/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/old-chevy-truck/join (Yahoo! ID required) * To change settings via email: old-chevy-truck-dig...@yahoogroups.com old-chevy-truck-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: old-chevy-truck-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [old-chevy-truck] Master Cylinder problems
I think we got the rebuilt cylinder at NAPA. On Aug 26, 2012, at 6:37 PM, Deve Krehbiel dkrehb...@cox.net wrote: When I install a master cylinder in these trucks, I have a small tubing setup that pushes brake fluid into the second stage of the cylinder to help prime the system. So, I fill the cylinder, attach the cutoff brake line that goes from the output of the cylinder BACK into the fill hole, pump it several times. This helps bleed the air out of the bottom part of the cylinder before bleeding the system. An old trick I learned from an old timer who knew his stuff. Anyone else do this? Deve www.speedprint.com/Deves50 -Original Message- From: old-chevy-truck@yahoogroups.com [mailto:old-chevy-truck@yahoogroups.com] On Behalf Of Jonas Thaler Sent: Sunday, August 26, 2012 6:23 PM To: old-chevy-truck@yahoogroups.com Subject: Re: [old-chevy-truck] Master Cylinder problems When this happened to me it was my master cylinder. It was completely shot. It was amazing that the truck stopped at all. Testament to the great simple engineering of old American trucks. Anyway, we stuck in a rebuilt one and it bled up and got firm right away and now it stops on a (very large and slow) dime. So, as obvious as this probably sounds, I guess it pays to check the integrity of each individual component. On Aug 26, 2012, at 2:36 PM, hwtrimbl hwtrim...@comcast.net wrote: I have '51 3600 with very low brake pedal. First push goes almost all the way to floor but after I pump a few times I have good brake pedal. I have recently put a new kit in master cylinder with no luck. Master cylinder has been sleeved before so may have excess wear. I bench bled before installation and have bled all the wheel cylinders. Any thoughts would be greatly appreciated. If I need a new MC anyone have any thoughts on where. [Non-text portions of this message have been removed] Ole Chevy and GMC trucks rule! To unsubscribe, send an email (with no subject, no body, just the email), to: old-chevy-truck-unsubscribe@yahoogroups.comYahoo! Groups Links [Non-text portions of this message have been removed] Ole Chevy and GMC trucks rule! To unsubscribe, send an email (with no subject, no body, just the email), to: old-chevy-truck-unsubscribe@yahoogroups.comYahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/old-chevy-truck/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/old-chevy-truck/join (Yahoo! ID required) * To change settings via email: old-chevy-truck-dig...@yahoogroups.com old-chevy-truck-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: old-chevy-truck-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[old-chevy-truck] Re : Master Cylinder problems
Just for fun ; Try adjusting all four wheel's brakes until the drums lock up ~ then see if the pedal is still low . I assume you know to adjust the master cylinder's push rod so it rattles slightly when the pedal is released ? . the brake pedal must move 1/4 before the MC's piston begins to move . Also it is _critical_ to have the brake pedal's return spring strong enough to return the brake pedal against the toe board with a thump . Grease the brake pedal shaft so there's no binding . Most bad brake issues are caused by failure to address details like this that seem inconsequential , they're actually very important . -Nate hwtrimbl hwtrimble@... wrote: I have '51 3600 with very low brake pedal. First push goes almost all the way to floor but after I pump a few times I have good brake pedal. I have recently put a new kit in master cylinder with no luck. Master cylinder has been sleeved before so may have excess wear. I bench bled before installation and have bled all the wheel cylinders. Any thoughts would be greatly appreciated. If I need a new MC anyone have any thoughts on where. Ole Chevy and GMC trucks rule! To unsubscribe, send an email (with no subject, no body, just the email), to: old-chevy-truck-unsubscribe@yahoogroups.comYahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/old-chevy-truck/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/old-chevy-truck/join (Yahoo! ID required) * To change settings via email: old-chevy-truck-dig...@yahoogroups.com old-chevy-truck-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: old-chevy-truck-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[old-chevy-truck] Re : Bendix Brake Bragging
HARUMP ! . Those stuck with Huck brakes , have to use Silver Dollars to stop upon as the dimes quarters go sailing past -Nate Jonas wrote : When this happened to me it was my master cylinder. It was completely shot. It was amazing that the truck stopped at all. Testament to the great simple engineering of old American trucks. Anyway, we stuck in a rebuilt one and it bled up and got firm right away and now it stops on a (very large and slow) dime. So, as obvious as this probably sounds, I guess it pays to check the integrity of each individual component. Ole Chevy and GMC trucks rule! To unsubscribe, send an email (with no subject, no body, just the email), to: old-chevy-truck-unsubscribe@yahoogroups.comYahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/old-chevy-truck/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/old-chevy-truck/join (Yahoo! ID required) * To change settings via email: old-chevy-truck-dig...@yahoogroups.com old-chevy-truck-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: old-chevy-truck-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[old-chevy-truck] Re: Master Cylinder problems
This is called ' Bench Bleeding ' and is often done in shops to save time and ensure easier bleeding of the whole system . However , it is also VERY easy to drip brake fluid onto your paint as you're transferring the master from the bench to the vehicle , brake fluid *instantly* ruins any paint it touches so beware . For those who want to try this , most FLAPS sell Bench Bleeding Kits that are simply plastic tubes . -Nate Deve wrote : When I install a master cylinder in these trucks, I have a small tubing setup that pushes brake fluid into the second stage of the cylinder to help prime the system. So, I fill the cylinder, attach the cutoff brake line that goes from the output of the cylinder BACK into the fill hole, pump it several times. This helps bleed the air out of the bottom part of the cylinder before bleeding the system. An old trick I learned from an old timer who knew his stuff. Anyone else do this? Deve www.speedprint.com/Deves50 Ole Chevy and GMC trucks rule! To unsubscribe, send an email (with no subject, no body, just the email), to: old-chevy-truck-unsubscribe@yahoogroups.comYahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/old-chevy-truck/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/old-chevy-truck/join (Yahoo! ID required) * To change settings via email: old-chevy-truck-dig...@yahoogroups.com old-chevy-truck-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: old-chevy-truck-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
