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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Leaking Fluids.

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Old Feb 16, 2011 | 12:55 PM
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dyingtolive
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From: Jacksonville, NC
Leaking Fluids.

So just a few minutes ago, I was out washing/waxing the truck (She's beautifully shiny/rusty red now). Well, I got done waxing, and I crawled up underneath the truck to look at what I'd have to do to re-install my factory fuel tank selector valve. I looked over to my right and noticed that the clutch fork boot had slipped out of the bellhousing (T-18 transmission), so I put it back in. When I did, I pushed on the clutch fork (towards the front of the truck, as if the clutch pedal was being depressed), and when I pushed on the clutch fork, I felt something wet on my face. I looked up just in time to get a drop of brake/clutch fluid in my eye. Great. But, every time that I pushed on the clutch fork, brake fluid would drip from the clutch master cylinder.. However, I just went out a couple of minutes ago to see if I could get it to do it again, and there was no dripping, but the cap on the reservoir on the clutch master cylinder is wet with brake fluid.. What's the deal here, guys?
 
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Old Feb 16, 2011 | 01:06 PM
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From: CASA GRANDE AZ
you pushed the fluid right on out the top of the master cylinder ! if clutch is working fine then then forget what you saw !
 
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Old Feb 16, 2011 | 02:30 PM
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From: Charles Town, W bygod Va
Originally Posted by cj06
you pushed the fluid right on out the top of the master cylinder ! if clutch is working fine then then forget what you saw !
+1, check the fluid level and carry on.
 
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Old Feb 16, 2011 | 07:39 PM
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dyingtolive
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Well, I checked the fluid level, I've got plenty of fluid. Clutch still works fine, and for the life of me I couldn't get the dern thing to do it again. Solution? Put the cap on the reservoir and carry on. Haha, I was worried there for a second, but I guess everything is good to go. I did notice, upon the second removal of the reservoir cap, that there is a weep hole on the top of the cap, so that was probably the source of my leak. Oh well.

Thanks, guys!
 
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Old Feb 16, 2011 | 07:53 PM
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Not really a leak.

The fork only travels in that direction when the clutch wears. You pushed the slave pushrod in and thus pushed the fluid out of the slave up and into the master, overflowing it.

It's the opposite of a brake system, where as material wears away, the fluid level drops.
 
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Old Feb 16, 2011 | 08:07 PM
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Aha! Now that makes sense. Thanks for the explanation, man.
 
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