The Stovebolt Site Forums The Parking Lot Big Bolts New power brake booster and MC

My thoughts exactly. So today, all of my replacement parts will be delivered and I can start getting back on track. The main part for this thread is the booster and MC. I hope to have the bracket finished this Saturday. Just need to drill 4 holes in it, weld it with the correct alignment and then bolt in permanently to mount the booster. Then get the motor reassembled and running before I can test the brakes out.

Got the brake booster/MC bracket finished. It's ready to install. I was going to do it Monday, but it's my son's 14th birthday. So possibly Wednesday. Here are some picks of the build.

http://i107.photobucket.com/albums/...9-4140-A2DF-8AB33C6398FE_zpsueezcybi.jpg
http://i107.photobucket.com/albums/...B-4A67-AC95-210A11AF884D_zpsd7bk0m91.jpg
http://i107.photobucket.com/albums/...B-4EB5-8FA9-7B2794454778_zpssrlpaqe2.jpg
http://i107.photobucket.com/albums/...D-406C-9A31-40C6AE9AD5E6_zpspwp1mysv.jpg
http://i107.photobucket.com/albums/...B-4906-A824-8F327333137F_zpsbkyhvbgz.jpg
http://i107.photobucket.com/albums/...4-4BF7-A4F6-CC36E50BA3A8_zpsvhrjf9wk.jpg
http://i107.photobucket.com/albums/...C-49E0-A3A5-E78686C07305_zpsfry6axun.jpg
http://i107.photobucket.com/albums/...5-417F-8F1F-8CAED951725D_zpslhuvmi7h.jpg
http://i107.photobucket.com/albums/...7-465C-B643-07B9821D3EE6_zpsmmcp3ubr.jpg

I got the push rod sized and installed to check for proper fit and operation. Here's a short clip showing it in action. It's being painted and will be installed tomorrow. I still need to get my engine back from the machine shop so I can assemble and get back into the bus. Then I can get it running again and test the new brakes.

http://s107.photobucket.com/user/fc...34-A0779A665405_zpsvj3quvja.mp4.html?o=0

Just got the engine back from the machine shop yesterday. I start assembling it tonight and should have it installed in a week or so. Then get it fired up and test the braking system.

sweet! Sounds like progress! I really enjoy engine assembly, then firing it up for the first time!

I installed the motor and transmission last weekend. The Transmission cross member sits right where I had my booster bracket. Sooo, I am moving it back a few inches tonight. Once it's mounted I can make a new pushrod and get the brake lines done and bleed them. Driveline gets to the driveline shop tomorrow after I measure it up tonight and then installed when back. Then it should be go baby go time. Here's a link to my other thread with the motor install and running.
https://www.stovebolt.com/ubbthread...1/New_Motor_almost_done.html#Post1194691

Everything is pretty much done. Brakes are all in and bled. Just need to install the drivelines and hookup a few wires, vacuum line to the brake booster and install the gas pedal. Then take it for a ride. Here's to hoping the brakes work as I planned them to. Well, I hope EVERYTHING works as I plan it to. I want to make it easy to drive and have fun!!

Been following your progress and am most impressed. Can't wait to see videos of your first ride! Congrats!

I GOT TO DRIVE MY BUS YESTERDAY. Just in the parking lot, but with the automatic transmission and the braking system. Everything worked really well. The motor's timing was a bit retarded so we are going to advance it to get it where we want it. It's pretty fun. I need to do a few things still to make it roadworthy, but I'm almost there. basically I just need to permanently mount the throttle cable and it's done. I still need to hookup the backup lights on the shifter switch, rewire the radiator fan to work off of the ignition switch and put a bypass switch inline (manual override for the fan thermo switch), mount the air scoop and clean the carb's jets and it's pretty much a cruiser. I'm finally getting to the end of the tunnel for mechanical work on it.

Took the bus out on the street yesterday. Did really well. Acceleration was good, except the primaries are a bit lean. Found the carburetor is too corroded to really get it set right. So getting a new one this week. Quick Fuel Technologies is my choice. Now the brakes are working great. I'm pleased with the outcome of the conversion. Here are a couple videos of the bus in the parking lot. I'll try to get better video of it on the street, but I am fighting a cold and may not get one very soon.

http://vid107.photobucket.com/album...A-4B15-98E7-8D92A30014ED_zpsdaksgxy7.mp4

http://vid107.photobucket.com/album...C-4E30-BD04-5C9E092E6EE9_zpsdftdjgwl.mp4

Congrats Fred! You must be really pleased to finally get your bus to where it is with all of the challenges you've had.
Looks and sounds great.
I'm jealous!

SWEET!

Thanks guys.

That looks great! So how's the feel? I'm really debating whether I should do something similar on my truck, or just get the stock system running. As far as I know, I may just need to bleed the system. I haven't found any leaks, and I'd really like to use my truck for firewood cutting this spring.

I'm not entirely clear on which MC and booster you used either. Do you have any more specific info there? I'm seeing 8" dual diaphragm boosters all over online, but I'm not sure if they all have the right MC bolt pattern, rod length, etc.

After a closer look, I noticed you said you actually ordered this one for $200:
http://www.ebay.com/itm/321928796214?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

I had thought it was only in the running. I'm sure you haven't put a lot of street time on the truck yet, but I'm wondering if you feel that the extra proportioning valve added a lot of value for you? I may have found a similar setup (sans prop valve) for around $120. I'm torn about what sort of brake proportioning might be useful for me. My truck will either be used with nothing in the bed, or 6-8000 lbs in the bed. It's hard to imagine a setup that would be ideal in both scenarios. I'd lean toward having adequate rear brake pressure, but would likely risk skidding while the truck is empty.

I don't have any issues with the system I put in. I haven't had much street time on it though. The carburetor was not that great so I ordered a new one and putting it in this weekend. Then the rain started and I don't have the wipers going yet so I may have to wait until we get more dry weather. But the driving we've done with it seems to be just fine. I'm using the proportioning valve because I have a disc/drum set up that has the disc in the back and drum in the front. It's usually the other way around. I'm going to get the front swapped to disc with Grigg's tech tip using spindles off a step van I acquired and stripped the front axle from. But for now it seems to be operating as planned.