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Joined: Aug 2003
Posts: 720
Oil Can Mechanic
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OP
Oil Can Mechanic
Joined: Aug 2003
Posts: 720 |
i'm having brake problems with my 1972 big block coupe . it appears to be ether master cylinder or pads it has manuel brakes and iwould like to know the master cylinder bore r manuel master cylinder . and what bout the orfices in the master cylinder outlets . every thing s new lines hoses calipers . there is something i have missed thanks
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Willwood Engineering
Wilwood Engineering designs and manufactures high-performance disc brake systems.
Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188
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Joined: Sep 2007
Posts: 64
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Sep 2007
Posts: 64 |
Eldeeb
_________________
Keep them running
trucks are cool
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Joined: Aug 2003
Posts: 720
Oil Can Mechanic
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OP
Oil Can Mechanic
Joined: Aug 2003
Posts: 720 |
the problem is it will not stop i may have found the problem the master cylinder has the wron bore one for power brakes i wont know until i go out and remove the master cylinder and measure as the cylinder has no numbers on it to identify it . every thing is new and i thought checked this before . have any other ideas thanks
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Joined: Dec 2001
Posts: 11,162
ChatMaster - 10,000
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ChatMaster - 10,000
Joined: Dec 2001
Posts: 11,162 |
Push I hope you aren't running on one of them new 1/8 mile drag strips and you have been used to an old 1/4 mile strip. do you have your drag chute mounted in the back or are you using one of the anchors off one of them shrimpers?
Brang her up here and if there is any thing left of it when you get here I'll take a look at it! Right after we get some 21" tires mounted on the 28.
See you in the funny papers.....
Life's a long winding trail, love Jesus and ride a good horse!
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
From 1977 Corvette parts book.
1966 with drum brakes-M/cyl is 7/8" -Would be Delco/Moraine...no casting number given.
1966 with disc and no power-1" Bendix casting # 618690
1966 with disc and power-1" Moraine no cast number.
The 7/8" cyl. would give the least pedal pressure.
I have some new 1953-1977 Corvette loose leaf parts books for sale if intrested.
Question-Did you replace the timing cover oil seal on your '35 with a modern seal? If so what number/brand?
Gene Schneider
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Joined: Aug 2003
Posts: 720
Oil Can Mechanic
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OP
Oil Can Mechanic
Joined: Aug 2003
Posts: 720 |
gene when i did my 35 the timing cover had been changed to a lip seal like a previous post .they made a bushing and pushed the seal in . it was in good shape so i did not replace it . it should be not much of a problem to go to the seal shop and find it in their book . i have the books on the corvett even a build book i just could not find it the master cylinder has a 1" bore for the manual brake system . iam going to emove the master cylinder and check it . it is going to houston autorama wednesday all it has to do is go they said nothing about stopping and it cant have no more than one quarter tank of fuel but i dont have to wory about that it can be full by the time i load ,unload and drive in it will be on a quarter tank (big block) it sure likes the fuel and has a small tank
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Joined: Nov 2003
Posts: 2,576 Likes: 2
ChatMaster - 2,000
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ChatMaster - 2,000
Joined: Nov 2003
Posts: 2,576 Likes: 2 |
the 1970 thru 1972 corvette master cylinder, without power brakes, has the delco split-circle logo and the casting # 5455509 on the pass side of the cylinder. the power brake cylinder has the delco logo and cast # 5480346, also on the pass side of the cylinder.mike
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Joined: Aug 2003
Posts: 720
Oil Can Mechanic
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OP
Oil Can Mechanic
Joined: Aug 2003
Posts: 720 |
thanks mike next week when i get the car back from autorama in houston i am going to take the master cylinder off and measure the bore . i found the original and it has a 1" bore but the one that is on it may be a replacement it does not have the no. on it . and if that is not it i will start on the pads .
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