The brake pedal in my '42 GPW has always been a bit hard. I have a leaky wheel cylinder in the back too. Basically, I need to go through the system and adjust it all as well. But...they have always stopped the Jeep well. The other day, when I pulled it out for a short drive, I noticed that the pedal would pulsate up and down when I pressed it. Not short and quick pulsations but slower and longer pulsations. I know usually this would indicate a warped drum but my question would be, how could it warp this quick with no, prior indication? It's like it started in an instant. Could there be another cause for this? Wouldn't a warped drum also produce a shorter and quicker pulsation, like when your disc brake rotors warp?
I plan on going through the entire system soon and haven't driven it since but am just curious about it. Thanks!!
Large pulsations in brake pedal....
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Re: Large pulsations in brake pedal....
Maybe it's the brake fluid from a leaky wheel cylinder on the inside of the brake drum trying to dry out as you hit the brakes. would ground that vehicle and take care of those brakes. Too much liability if you cause an accident. And then there is the safety issue for you and anyone in the jeep. Not trying to be a jerk, just don't want to see a fellow MV'ER get killed or injured!
Dino Falabrino
On the "G" since 1998.
1943 GPW 102310 DOD 3-3-43
1928 Model A Roadster Pickup
1930 Model A Tudor
1968 Taco Minibike
On the "G" since 1998.
1943 GPW 102310 DOD 3-3-43
1928 Model A Roadster Pickup
1930 Model A Tudor
1968 Taco Minibike
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Re: Large pulsations in brake pedal....
A similar thing happened to me .......was on my motor home .....turned out to be a lining dislodged from a brake shoe....
Just maybe .....
Cheers
Vic
Just maybe .....
Cheers
Vic
1944 mb Eng MB301090 Old Girl
1942 mb 110674 Bruce
1942 mb 131196 WA
GPW 259102 Old Yella
GPW 50962 Henry
1942 mb 110674 Bruce
1942 mb 131196 WA
GPW 259102 Old Yella
GPW 50962 Henry
- nick peters
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Re: Large pulsations in brake pedal....
I'd agree with Vic more likely you've cast a shoe on your old warhorse either way she needs some love and care
regards Nick
regards Nick
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Re: Large pulsations in brake pedal....
Bent hub can also cause a pulsating pedal.
Same goes for brake drum.
Same goes for brake drum.
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HONOR GRAD-WHEELED VEHICLE MECHANIC SCHOOL 1960 - US ARMY ORDNANCE SCHOOL(MACHINIST) ABERDEEN PG 1962 - O-1 BIRD DOG CREWCHIEF - 300,000+TROUBLE FREE M-38A1 MILES
LIFE MEMBER AM LEGION-40/8-DAV
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Re: Large pulsations in brake pedal....
Are your hub bearings loose?
Easy enough to check.
V/R W Winget
Easy enough to check.
V/R W Winget
Looking for 1918 Standard B 'Liberty' truck parts
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Re: Large pulsations in brake pedal....
Thank you to all of you guys who've replied, I really appreciate it! As soon as it happened, I went back to the house. Fortunately, I was only a couple of blocks out. Obviously haven't driven her since and won't until I get it squared away. I really appreciate all of the suggestions and it gives me some concrete, items to look at. I'm leaning more towards a shoe lining coming loose or the loose bearings maybe. Whatever it was, it came on quick!
I'll tear into her and report back as to what I found.
Thanks again! Just another reason why I love this forum!!
I'll tear into her and report back as to what I found.
Thanks again! Just another reason why I love this forum!!
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