Xmas Pig work

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Joined
Dec 7, 2004
Threads
31
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1,193
Location
Wyoming or Antarctica or....
After my little jaunt down to New Mexico to go caving over Thanksgiving, I realized I could no longer put off working on the 55. The engine was leaking oil like a sieve, my PS pump was eating belts, there was a terrible clunk comming from the rear end, the brakes were still awful, a hub seal was leaking gear lube on my FF, a glow plug was toast, and the washer switch had gone out.

I planned a week to work on the truck.

Looking at the engine, I thought the rear main seal had gone out- there was oil everywhere, enough to make the truck look like it was British. I planned on replacing the seal, and with some help from Steve Fox, got the right parts in. I washed the beast, and as I went to drain the oil, I realized my first mistake: the rear seal was fine. Not a drop of oil back there, but there was a ton around the plug. The gasket was junk, the plug was loose, and there was a small crack in the pan near the diff. I kicked myself for ordering all those new parts without first checking everything. Welded up the crack, got a new gasket. No leaks.

The PS pump was taken care of by my bud Ray. The mount, made by the PO, was off and there was no bolt in the front of the pump to hold it on. It was constantly crooked. We pulled it off and Ray made a spacer for the back stud of the mount that removed any slop. The front was tricker since the holes in the mount were not lined up. The front hole got a plug, then ray line drilled the mount to make sure the pump was perfectly perpendicular with the block. No more slop, everything is straight.

If the oil leaks hadn't made me feel dumb, then the rear diff did. I should say that in ten years of owning Cruisers, I've never had any problems with u-joints before. NEVER. Not one. On the other hand, I've had problems with @&@&@&@&ty differentials before- sloppy lockers, trashed center pins, junk bearings. Knowing the diff in the rear was 30 years old, I suppose I never gave the ujoint a second thought, which is why I felt really dumb to find it destroyed. Getting it out was an even bigger hassle. I managed to break three bearing caps using a press. Absolutely fricken stupid, but much quicker than rebuilding a diff. (Sutpid!)
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The brakes were an issue I wasn't avoiding, but had no place to work on it, so I drove it for over a year with non-boosting brakes (only had one potential incident as well; I was very lucky.) After driving Andre's Hydroboosted FJ55, I knew I wanted the same setup and I started collecting parts. Hydroboost off a '95 astrovan, a MC off a 2000 blazer. The MC turned out to be crap; getting a new one was even harder since Chevy in their infinite wisdom decided to build Blazers in two places and hence had two different master cylinders (WTF?!?!). Napa ordered a correct, new MC that worked. Other parts store monkeys needed a vin to get the right part- :flipoff2: without the smiley.

Here's the final setup: Chevy backing plate, holes welded up with new holes to fit the 55 firewall. the input shaft was simply cut and threaded. Amazingly, the hole in the firewall is just the right size. :)
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More pictures of the final setup. Nevermind how ugly the rear line is- that's how the the PO had set it up, and I really didn't feel like making a whole new line. For the front line of the Blazer MC, I took the original 1/4" line and sleeved a 3/16s inside. Perfect.

Shot of the interior as well.
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The right rear axle has always given me problems, whether it's been leaking like mad, the axle shaft sliding in and out, or the whole ******* wheel just falling off. This time the inner hub seal was complaining- the seal surface was essentially non-existant. I used a chisel to remove was was left of the old one, and used a dial caliper to measure the diameter. For $48 Napa ordered me a speedi-sleeve with one problem (besides the price): it was 3/4" wide, whereas the old on was probably 3/8" wide. Some tin snips and some filing later, well, it's not perfect, but it works perfect. ;)

As for the glow plug and washer switch, well, mute point. After getting the wheels back on and bleeding the brakes I went for a drive. The Hydroboost was AWESOME. I had no problem locking up the wheels- the power is impressive, but after driving a Cruiser with no brakes it'll take some getting used to. Regardless, the brakes were now so powerful that the worn rear braided line line burst. I had to leave Wyoming for Idaho, no parts available, had to take my little mazda back to Idaho. No 55 for five months. :frown: :mad: :frown:

The new rear seal surface:
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RUSH55 said:
What's the deal with this "hydro-boost"? Have not heard anything about it.

Bosch's Hydroboost is a power brake boosting system that utilizes hydraulic power from the power steering pump instead of using vacuum from the engine. It is more common to diesel engines than gas (since diesels do not produce vacuum) and is used by GM and Ford and others (in everything from HMMWVs to F550s).
 
Good to hear that you are getting the Piggie road safe. It is a shame that fixing one thing develops a new problem. But lthis is why we love them right? They may be a money pit but they are like manatees, so ugly you cant help but love them.
 
usmcruiser said:
They may be a money pit but they are like manatees, so ugly you cant help but love them.


Who loves Manatees??????????????

Brian, nice work, but I can lock up my drum brakes just fine...............




















On Ice:D :D :beer:
 
not the same type of manatees as in florida. Just the type that venture out of there house from time to time
 
RUSH55 said:
And what are the advantages of running the system, besides having power brakes on a rig with no vacume?

The system is rather heavy duty and was designed to stop heavier vehicles, which it does a damn nice job of. It also gives you a chance to upgrade to a larger master cylinder.

If your vacuum boosted brakes are stopping your 55 just fine right now, I wouldn't worry about switching over to a hydroboost unit. The only person I know who runs this setup without a diesel is too tall.


Edit:
I think most of the Colorado manatees have migrated FROM nebraska...
Some of those corn-fed nebraska manatees are big enough to burn diesel.:flipoff2:
 
reviving an old but interesting thread; has anyone tried this on a non diesel pig?.....comments??; Andre? Ridgerunner in Kyrgistan?...........TIA

Lou
 
Yeah, I've installed a rebuilt hydroboost unit from Vanco on my :pig: It came from a military M1008 Chebby w/ the 6.2 diesel. It's not running yet. I also have a Durex hi flow P/S pump to go w/ the system. I have the same exact setup on my 40. Never a spongy or dbl. pump pedal, but very firm & stops on a dime. I have a few pics on the install in my buildup thread page 15 post 438 ;p
 
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