Originally Posted by
Barrman
"it will work out fine"..... Famous last words.
We figured out a way to make the Nitrogen can clear the injector lines by putting a 3/8" nut spacer on the passenger side Hydroboost mount and building a brace to go between the drivers inner fender and the bottom of the unit to push it up. It was actually tilted and twisted at the same time and cleared everything. I didn't take a picture.
I ordered brand new Hydroboost hoses for a 1985 K30 a while ago since that is what my power steering pump is from. Once we had the Hydroboost installed on the truck, the pedal moved freely, the push rod was just right and it was just a matter of screwing the lines in. That is where it has all gone wrong.
It turns out the unit I am using is a metric O ring unit while the hoses for 1985 are standard O ring thread. I of course figured this out after bending the metal line all up to fit just right. Thankfully, I had another unit on the bench next to the truck that Gimpy gave me in 2007 or so while Kwai and I were driving through Cincinati one midnight on a cross country parts trip. The hoses screwed into that one just fine.
The unit from Chris though is a long push rod one. The one we had bolted up was a short push rod version. Oh well, just a little cutting and welding to make it work.
We removed the metric unit from my truck and went to changing out the mount plates. Once you remove the snap ring, only a 1-7/8" open end will fit the big nut on there. It is a square face so no 6 or 12 point box end will fit. My students alway ask why I have such big tools in the tool room. They were amazed that something as small as a brake booster would need something so big.
Both the welding teacher and the autobody teacher are out the today and tomorrow. That means the welders are all locked up. Looking for something to do, I decided to make sure the lines fit the pump and steering box. No problem on the pump. The box was a problem. Of course the lines are bent for a K30 and not to go under that cross brace the M715 has.
Once I get it bent to fit, it wouldn't thread in either. I knew the box was not metric because I pulled it myself from a 1966 Impalla. I couldn't make it go. I walked over to Sermis' truck and it screwed right in. Then I looked in the box hole. The hose was standard O ring and my box is standard flare line fitting. RRRRHHHHH.
Thankfully, I hadn't thrown away the 1966 power steering lines I had been using on the box and my deciding to put new ones on is what started this entire Hydroboost thing. I cut the old and new lines where I wanted and used a compression fitting to put them back together. We will see how it works.
Once that was figured out, I got to looking online and realized I had been stupid. Why not just turn the booster over to clear the valve cover? Duh! Guys with old Bronco's and muscle cars do it all the time. I test fitted like that and my clutch master is about 1/8 too much in the way. That sure would free up a lot of space though. We might try something creative to make it fit upside down. However, the lines are all bent to be just right with it not upside down. Choice and choices.
