Author Topic: hard braking (Read 1986 times)

4rox · « **on:** May 12, 2004, 04:03:55 PM »

I have a 94 ext cab. Its mods include sas,350,ford 9inch.I've recently replaced both rear wheel cylinders,rear brake shoes,master cylinder.The truck stops okay yet the pedal is as hard as when the engine is not running.The engine is a 350 bored .030 over with a healthy cam.Could the cam be part of my problem?What do I do?

kyle_22r · « **Reply #1 on:** May 12, 2004, 04:12:53 PM »

the pedal is hard because the engine is not running. the booster needs to engine to be running to, well, boost the brakes.

brainlessfool · « **Reply #2 on:** May 12, 2004, 04:38:15 PM »

if there is no diff. beteew the eng. running and not running then its the booster, or the vac line to the booster. the big cam will weaken the "boost" at idle but coming up to a stop sign it sould not matter. chek for vac to the booster and leaks at the booster, I use carb. cleaner with the eng. running. good luck

kyle_22r · « **Reply #3 on:** May 12, 2004, 06:41:26 PM »

ah man, my wisecrack backfired on me

i need to get some reading comprehension

WHITE_TRASH · « **Reply #4 on:** May 12, 2004, 06:56:39 PM »

Yup a big cam will not draw enough vacuum for you power brakes. Id suggest a vacuum can from summit they're cheap and they will work well for what you need.

Marlin · « **Reply #5 on:** May 15, 2004, 10:05:09 PM »

If your truck has a rear load porportional valve, it may be rusted up. Put the rear end up in the air, push the brake pedal, and check to see the rear brakes are working.

Marlin

Author Topic: hard braking (Read 1986 times)

4rox

hard braking

kyle_22r

Re: hard braking

brainlessfool

Re: hard braking

kyle_22r

Re: hard braking

WHITE_TRASH

Re: hard braking

Marlin

Re: hard braking

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	Author Topic: hard braking (Read 1986 times) 0 Members and 1 Guest are viewing this topic. 4rox Rock Crawl'n Turtle Points: 115 Posts: 122 Member since Apr '04 Crawling in texas hard braking « on: May 12, 2004, 04:03:55 PM » I have a 94 ext cab. Its mods include sas,350,ford 9inch.I've recently replaced both rear wheel cylinders,rear brake shoes,master cylinder.The truck stops okay yet the pedal is as hard as when the engine is not running.The engine is a 350 bored .030 over with a healthy cam.Could the cam be part of my problem?What do I do? Logged I'd rather push a Toyota than drive a Jeep!!! kyle_22r The 1K Club Turtle Points: 530 Posts: 1,233 Member since Dec '03 yellow beast Re: hard braking « Reply #1 on: May 12, 2004, 04:12:53 PM » the pedal is hard because the engine is not running. the booster needs to engine to be running to, well, boost the brakes. Logged brainlessfool It's not my problem if you can't hear the voices too. Gold Turtle Award Turtle Points: 2730 Posts: 4,207 Member since Jun '02 drive fast or the devil may get ya Re: hard braking « Reply #2 on: May 12, 2004, 04:38:15 PM » if there is no diff. beteew the eng. running and not running then its the booster, or the vac line to the booster. the big cam will weaken the "boost" at idle but coming up to a stop sign it sould not matter. chek for vac to the booster and leaks at the booster, I use carb. cleaner with the eng. running. good luck Logged A good day working, that's just sick kyle_22r The 1K Club Turtle Points: 530 Posts: 1,233 Member since Dec '03 yellow beast Re: hard braking « Reply #3 on: May 12, 2004, 06:41:26 PM » ah man, my wisecrack backfired on me i need to get some reading comprehension Logged WHITE_TRASH Gold Turtle Award Turtle Points: 679 Posts: 6,277 Member since Feb '03 Don't blame me, I didn't vote for this crap. Re: hard braking « Reply #4 on: May 12, 2004, 06:56:39 PM » Yup a big cam will not draw enough vacuum for you power brakes. Id suggest a vacuum can from summit they're cheap and they will work well for what you need. Logged Full hydro, 186:1 with an auto and 44's what could go wrong?? Marlin Inspirational Genius 4WD Legend Turtle Points: 138 Posts: 856 Member since Sep '02 MC³ = 1,148:1 Re: hard braking « Reply #5 on: May 15, 2004, 10:05:09 PM » If your truck has a rear load porportional valve, it may be rusted up. Put the rear end up in the air, push the brake pedal, and check to see the rear brakes are working. Marlin « Last Edit: May 15, 2004, 10:07:58 PM by Marlin » Logged 1980 Toyota - 1997 3RZ-FE 2.7l Engine, Turbo R151F 4.31:1, Triple Turbo Marlin Crawler Billet (2.28x4.70x4.70) = 1,148:1 Crawl Ratio, Marlin Crawler Twin Stick and Short Throw Shift Kits, 30mm H/D Output Shaft, High Angle Drive Lines, 5.29:1, ARBs, High Pinion Front, 25mm HD Billet High Steer Kit, 6 Pin Locking Hub Bodies, 86+ Wide Rear End, V6 3rd member, Chromolly Axles all around, 37" IROKs with Beadlocks, York onboard air - Rollbar air tank, Premier Power Welder, Marlin Crawler 4" USA-made Leaf Springs, Bilstein Shocks, et cetera....