Clutch Pushrod Leak at Master Cylinder


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Location: Atlanta, GA

Post Wed Sep 12, 2018 6:12 pm

Clutch Pushrod Leak at Master Cylinder

Well I finally got the truck up and running. Took her out and about today and barely managed to limp her home.

I noticed the clutch pedal engagement getting steadily lower until it was practically on the floor. Checked the master cylinder and it was super low, topped it off, then went ahead and checked for leaks but had the same issue with engagement still low. I checked out the clutch pedal push rod and found the master was leaking where it met.

Does it need to be rebuilt? Would it be the AC Delco 18g1228 Mc rebuild kit? If so do I need two kits, one for the brake side and one for the clutch side?

Is it simpler and better to upgrade to a dual MC setup? Currently on a bit of a time constraint as I closed on a house today and am supposed to be moving on Saturday.

Pictures of leak at the link below.

https://photos.app.goo.gl/KLL6ojva8eEfNsrF7
1964 International C900 Pickup
1987 Subaru RX-Turbo
2017 Subaru WRX

Golden Jubilee
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Joined: Mon Dec 17, 2012 10:50 am

Location: Fletcher, OK

Post Thu Sep 13, 2018 9:43 am

Re: Clutch Pushrod Leak at Master Cylinder

I'd take a stab at rebuilding it and see if that fixes it, the last time I bought a rebuild kit it had everything for both sides.
46 K3
52 L110
68 Cadillac Coupe DeVille
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Pile of Parts
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Posts: 38

Joined: Mon Mar 05, 2018 8:23 pm

Location: Atlanta, GA

Post Thu Sep 13, 2018 10:17 am

Re: Clutch Pushrod Leak at Master Cylinder

That was my plan. Where did you buy the rebuild kit from? The ones that I've found only have a single piston, not one for the clutch and the brake.
1964 International C900 Pickup
1987 Subaru RX-Turbo
2017 Subaru WRX

Golden Jubilee
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Posts: 525

Joined: Mon Dec 17, 2012 10:50 am

Location: Fletcher, OK

Post Thu Sep 13, 2018 1:28 pm

Re: Clutch Pushrod Leak at Master Cylinder

Big A. Hmm, if they are only selling one side or the other you might just go ahead and rebuild just the clutch side. I know that isn't the best advice but honestly if your breaks are good and it is packaged as a separate kit I would be tempted to just rebuild the one side.
46 K3
52 L110
68 Cadillac Coupe DeVille

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Post Wed Dec 05, 2018 6:35 pm

Re: Clutch Pushrod Leak at Master Cylinder

hi,
I can't tell from your pictures, but if this is the dual brake / clutch master cylinder you have,
https://www.ihpartsamerica.com/store/SL863793R91.html
then this would be the rebuild kit you would need ... in my opinion:
https://www.ihpartsamerica.com/store/FS ... C-KIT.html
Good luck.

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