Author Topic: Access hole in floor  (Read 5386 times)

larryk

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Access hole in floor
« on: October 27, 2022, 09:59:35 AM »
Just started working on my 1953 HJ, and boy does it have a loooooong way to go.
In order to access one of the bolts on the brake master cylinder support bracket, I ended up drilling a small hole in the floor. Is this something that can be left as is (plugged), or returned to original?
I will probably never have this car judged, but you never know.
'53 Henry J Corsair Deluxe
'63 Chevy Impala (Wife's car)
'73 Datsun 240Z F Prepared autocross
'76 Datsun 280Z
'13 Fiat 500 Abarth
KFOCI # 16269

Fid

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Re: Access hole in floor
« Reply #1 on: October 27, 2022, 03:22:27 PM »
Hi Larry, I doubt anyone will notice a hole in the floor to access master  cylinder bolts.   I know they can be difficult - very poor design.  The way I usually get the two mounting bolts out is first soak the nuts with Kroil or a similar penetrating oil.  Then use a long thick end flat blade screwdriver and putting the end sideways in the philips slot on the bolt and then pivoting the shaft of it against the the frame to keep it tight in the philips head, then use a socket to remove the nut on the other side.  I know others have devised other tools to accomplish this as there is practically no way to get a philips screw driver fully into the heads of the bolts.  Prying against the frame with a slotted blade sideways in the philips head has always worked for me. 
« Last Edit: October 27, 2022, 03:23:59 PM by Fid »
1953 Henry J Corsair Deluxe
Edgar Kaiser's custom 1951 Henry J
1951 Kaiser Special
1952 Allstate Deluxe

Need your classic car radio repaired? I repair vacuum tube radios

Terry T

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Re: Access hole in floor
« Reply #2 on: October 27, 2022, 04:28:46 PM »
the bolts on mine were rusted to the cylinder.
Here is what I had to do'

larryk

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Re: Access hole in floor
« Reply #3 on: October 27, 2022, 05:25:01 PM »
I got the MC out OK, but I needed to remove the pedal assembly completely. The pin that attaches the MC actuator rod to the pedal was rusted stuck. I had to use my press to remove it. No way that I could ever accomplish that under the car.
« Last Edit: October 27, 2022, 05:47:25 PM by larryk »
'53 Henry J Corsair Deluxe
'63 Chevy Impala (Wife's car)
'73 Datsun 240Z F Prepared autocross
'76 Datsun 280Z
'13 Fiat 500 Abarth
KFOCI # 16269

Fid

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Re: Access hole in floor
« Reply #4 on: October 27, 2022, 09:04:32 PM »
Quote
The pin that attaches the MC actuator rod to the pedal was rusted stuck. I had to use my press to remove it. No way that I could ever accomplish that under the car.

That's the way it was on my Allstate too.  I somehow got it apart enough to remove it but I had to pound it out with a hammer as it was stuck so tight.  The pictures were taken after I buffed it down with a wire wheel. Needless to say, I put a thin layer of grease over it when I reassembled it all.
« Last Edit: October 27, 2022, 09:10:36 PM by Fid »
1953 Henry J Corsair Deluxe
Edgar Kaiser's custom 1951 Henry J
1951 Kaiser Special
1952 Allstate Deluxe

Need your classic car radio repaired? I repair vacuum tube radios