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#1 |
Hunting is Life
Join Date: Jun 2005
Location: Buffalo,MN
Posts: 115
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motor oil in brake booster
Well I finaly found a truck thats worth working on, when I popped the lid off the brake booster it was full of oil. Could this hurt any of my brake parts? NO WONDER MY BRAKES DIDN'T WORK.
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#2 |
Registered User
Join Date: Jun 2005
Location: Sacramento CA
Posts: 1,255
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I am going to take a WILD GUESS and say someone connected the vacuum brake hose into the valve cover. It should be connected to a vacuum source like the rear of the intake manifold or the bottom of the carburetor. Just an uneducated wild guess.
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Got bored, sold everthing. Got bored, looking for a 1960-66 C-10. Want to build my last truck. |
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#3 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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brake fluid probabally//new master and booster
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#4 |
Senior Member
![]() ![]() Join Date: Jan 2005
Location: CA
Posts: 5,533
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Is the oil in your master cylinder reservoir, or is it inside the vacuum booster itself?
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#5 |
Registered User
Join Date: Mar 2004
Location: Butler PA
Posts: 3,034
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brake fluid is polyglycol based petroleum will make all the seals in the system swell....new master cylinder calipers wheel cylinders anything with rubber seals....and you will need to completely flush the lines with brake clean and compressed air....
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67 c-10, 400 SB, TH350, 4.10 gears, Blazer tank,camaro tach, sidemarker fuel fill (soon) WTB: stepside parts, 67 front end parts, 67 small window cab. posi for 3.73 or 4.10 for 12 bolt and 10 bolt. |
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#6 |
Registered User
Join Date: Jun 2005
Location: Sacramento CA
Posts: 1,255
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bump...and the answer is...
__________________
Got bored, sold everthing. Got bored, looking for a 1960-66 C-10. Want to build my last truck. |
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#7 | |
Msgt USAF Ret
![]() ![]() Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,714
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oil in brakes
Quote:
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VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
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#8 |
Hunting is Life
Join Date: Jun 2005
Location: Buffalo,MN
Posts: 115
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Re: motor oil in brake booster
stupid me the oil was in the master cylinder reservoir :rolleyes
pat |
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#9 |
Senior Member
Join Date: Apr 2005
Location: Joppa, Maryland
Posts: 4,408
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Re: motor oil in brake booster
I have the same problem, but it is the rear seal in the back of the master cyl that is leaking. Some fluid looks like it went into the vacuum booster. We'll see what happens after I change the MC.
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1997 GMC Sierra Ext 1965 Mustang |
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