Re: 1965 GMC 3500 Rescue Squad
 

If you & the Powder Puff are ever out this way, stop by and she can run the siren....

Re: 1965 GMC 3500 Rescue Squad
 

Thanks Jolly! Now she's pushing for me to take Cecilia up to Utah. It probably won't happen very soon, but I think we might try once she's up to it.The state is full of eye candy. I think the drive would be neat and a good chance for a history lesson going through all the little towns. Keep us posted on those contests!

:yourock:

Re: 1965 GMC 3500 Rescue Squad
 

I been having clutch problems, I crawled under and adjusted the clutch linkage but that has not fixed the problem, just made it worst.



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So I guess I'll be rebuilding or replacing the Master cylinder next.



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Re: 1965 GMC 3500 Rescue Squad
 

Some Numbers I found in case anyone is looking.

Master Cylinder
Dorman M87167
Fenco {Autozone} NM34404

Slave Cylinder
Dorman CS36124

Re: 1965 GMC 3500 Rescue Squad
 

The Master Cylinder Swap was not too bad, the worst part was getting the clutch to bleed back up.

First I needed to readjust the clutch linkage at the slave cylinder, because the adjustment I make last week was not needed & it just made the clutch slip.



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two 2x4 under the right front tire gives me room to get my belly under the running board.

To remove the master cylinder, first undo the lines to the brakes & clutch. You mite want to invest in a 7/16 line wrench for this job as many folks have rounded the line nuts using a so called normal wrench. then remove the 3 bolts and it come right off.



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This should be the same for pickups with this same set up.



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Old & New Master cylinders side by side. I got the new one from Autozone for under $50.



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Re: 1965 GMC 3500 Rescue Squad
 

Another view of the new master cylinder, this is Autozone Duralast NM34404.



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Once you have installed the new master cylinder, its time to bleed it & if you don't have a power bleeder, you'll need a friend to help. besure to get all the air out, once your done it should look like this.



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The clutch works great now with out having to be pumped up so I can shift into first gear, once I'm moving the clutch is just along for the ride.

Then its time to show off a little eh.



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Next on the list, Tinting for the cabin windows.

*

Re: 1965 GMC 3500 Rescue Squad
 

This is a photo I took the other day just before sundown, the moon was just a bright white speck in the sky, so I photoshopped in an image of the moon over that speck.



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Don't forget my "Howlin' at the Moon Truck & Car Show", This Show Will go on into the Night under the Full Moon on June 14 2014. There will be a Vehicle Lighting Contest & Valve Cover Racing. To Be Held at the Y-Farm Red Shed on Highway 38, Honeyville Utah.

Info can be found on Facebook,

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.

Re: 1965 GMC 3500 Rescue Squad
 

Thanks for the update on this truck! I never get tired of seeing pics of it. That is a great step by step on the master and slave cylinder replacement.

It seems I can never get help bleeding these hydraulics and no pressure bleeder either. These "Mity-Vac" vacuum guns work great although I would rather use one of the other two methods. My darn hands can get tired and the seal on the bleeders can be a bit difficult. Definitely a lifesaver when there's no other choice! I tee in a vacuum gauge to test vacuum advance units and solenoids too.

DAC

Re: 1965 GMC 3500 Rescue Squad
 

I bought one of those once, never used it and can't find it now. I wonder who ended up with it....

Re: 1965 GMC 3500 Rescue Squad
 

So now the Master Cylinder is replaced, I took apart the old one and this is what I found.

Its got a lot of gunk in the bottom of the ressavoir & inside the piston bores.



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And there is a hole in the piston rubber on the clutch side, so its no wonder it leaked off.



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