The Ford Barn

johnh7 · 03-31-2014, 12:59 AM

Guys, I have purchased what I thought was a complete set of hardware to convert my 1938 Pickup to hydraulic brakes. It came with the clutch and brake pedal assembly, master cylinder and the complete backing plates including brake shoes and slave cylinders. I have taken it all apart to clean it up and I have found that three of the slave cylinders show 1 1/4 x 1 and one shows 1 1/8 x 1. Also the three don't have the "nipple" in the hole where the brake line screws into the cylinder. I took a picture to show what I am trying to describe. (see attached picture) My question is, are they a different design or is there a part missing from them?

Also which slave cylinder should be in front and what should be in back? I am referring to the measurement 1 1/8 vs 1 1/4. Any help is appreciated. I plan to rebuild these if the can be used, but obviously one is wrong compared to the other three. Maybe it would be better to just buy new ones from Macs?

scooder · 03-31-2014, 03:53 AM

1 1/8" is rear 1 1/4" is early front. I believe these have all been superseded by 1 3/8 for the front. Not sure the 1 1/4" is available. The ones with the little nipple in the hole are rear, this is for the flared hard line. The ones with no nipple are front, these are for the flexible line, this seals on the flat of the cylinder with a copper washer.
Hope this helps,
Martin.

johnh7 · 03-31-2014, 08:08 AM

scooder, that was great help. thanks much

mrtexas · 03-31-2014, 10:25 AM

Neither appear to have the bleeder fitting.

scooder · 03-31-2014, 12:05 PM

Quote:

Originally Posted by mrtexas

Neither appear to have the bleeder fitting.

The holes and threads are there, the bleed nipple is easily obtained.
Martin.

johnh7 · 03-31-2014, 05:19 PM

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Quote:

Originally Posted by mrtexas

Neither appear to have the bleeder fitting.

I removed them, I have bleeder fittings for all of them.

Talkwrench · 03-31-2014, 06:45 PM

Get yourself some speed bleeders and you will find it so much easier to do the job, and every two years you can bleed your brakes [as you should] in 10mins by yourself , done, easy!

johnh7 · 03-31-2014, 09:39 PM

Quote:

Originally Posted by Talkwrench

Get yourself some speed bleeders and you will find it so much easier to do the job, and every two years you can bleed your brakes [as you should] in 10mins by yourself , done, easy!

Talkwrench that is great advice. I looked them up and just ordered a set. Thanks

03-31-2014, 03:53 AM	#2
scooder Senior Member Join Date: Jul 2010 Posts: 2,593	Re: slave cylinder question 1 1/8" is rear 1 1/4" is early front. I believe these have all been superseded by 1 3/8 for the front. Not sure the 1 1/4" is available. The ones with the little nipple in the hole are rear, this is for the flared hard line. The ones with no nipple are front, these are for the flexible line, this seals on the flat of the cylinder with a copper washer. Hope this helps, Martin.

03-31-2014, 08:08 AM	#3
johnh7 Senior Member Join Date: Apr 2012 Location: Palestine, Texas Posts: 181	Re: slave cylinder question scooder, that was great help. thanks much __________________ John Live for today, but save for tomorrow!

03-31-2014, 10:25 AM	#4
mrtexas Senior Member Join Date: May 2010 Location: Sugar Land, TX Posts: 4,395	Re: slave cylinder question Neither appear to have the bleeder fitting.

03-31-2014, 06:45 PM	#7
Talkwrench Senior Member Join Date: Aug 2012 Location: Perth, Western Australia Posts: 2,687	Re: slave cylinder question Get yourself some speed bleeders and you will find it so much easier to do the job, and every two years you can bleed your brakes [as you should] in 10mins by yourself , done, easy! __________________ *"Came too close to dying to stop living now!"*