The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-11-2004, 02:06 AM   #1
lost_66
Registered User
 
Join Date: Nov 2003
Location: Pillager,MN
Posts: 181
replace Hyp booster for brake to Vacuum power booster brake for diesel pickup??

I wondering if i can replace Hyp power booster brake to vacuum power brake but where can i plug vacuum hose to diesel engine????? let me know
pls.. thanks, Andy
lost_66 is offline   Reply With Quote
Old 05-11-2004, 06:19 AM   #2
TwinTurbo
Registered User
 
TwinTurbo's Avatar
 
Join Date: Sep 2003
Location: The Netherlands
Posts: 994
vacuum on a diesel??? That's why the hydrobooster is there, you can't run a vacuum booster.
TwinTurbo is offline   Reply With Quote
Old 05-11-2004, 09:07 AM   #3
RockHQ
ROCKET POWER!
 
RockHQ's Avatar
 
Join Date: Feb 2003
Location: Finland, Europe
Posts: 509
You do have a vacuum pump on your diesel, but it's not designed to run a vacuum booster, so it might not work. Like Twinturbo said, diesel engines by nature do not have a running condition where vacuum would exist in the intake manifold. Besides, the hydroboost is a far more robust system than any vacuum booster can ever be.
__________________
What did i do last nite?
I had a wonderful time,
That's what they tell me
What did i do last nite?

1979 C-10 shortfleet: Olds 350, Th400, 12 bolt
Current project: 1969 Olds 455 W-30, needing a rebuild
RockHQ is offline   Reply With Quote
Old 05-11-2004, 09:58 AM   #4
arveetek
Ultimate Diesel Dude
 
arveetek's Avatar
 
Join Date: Oct 2002
Location: Southwest Missouri
Posts: 328
I'm running a vacuum booster on my diesel, and it's hooked up to the stock vacuum pump, along with a large vacuum reservoir. However, I don't recommend you do this. The vacuum pump takes a little while to build up enough vacuum for the booster to work. This is a problem at startup. You won't have any brake assist until the engine has been running for a few moments. I'm used to it, but it can be a problem. Plus, if you step on the brakes several times in a row, you can use up all the available vacuum and run out of assist. Not good when backing up to something, and you lose your assist, and you slam into the dock or whatever. Also, you'd probably need to replace your vacuum pump if it's more than a few years old, because they do wear out.

The only reason I'm using a vacuum booster is that my truck was originally a gasser, and I've never gotten around to swapping in the hydroboost.

Stick with your hydroboost system!

Casey
__________________
Project truck: '81 C/20 converted to 6.2L TURBO DIESEL bored .040", gear drive, 6.5L injectors/pump, custom pistons, custom 4" exhaust, 700R4, 4.10's
Daily Driver: '95 K1500 Tahoe, 6.5L TURBO DIESEL, NP241, 4L80E, 3.42's
arveetek is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 09:54 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com