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- - Is this common feature ...?? (https://67-72chevytrucks.com/vboard/showthread.php?t=47543)

the baron

04-05-2003 09:04 AM

Is this common feature ...??

...of was this brake assistance device only used on Diesel powered trucks ?
Master vac installations are in use on diesel powered european cars , but this is new to me !
Is this a Hydro-vac ?
It works well anyway , the first time I pushed the brake pedal , I gave a kiss to the windshield...Smak !

The Baron

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1979 C10 4X2 LWB (ex-350 diesel / now 350 gas engine )
1977 Impala 250ci sedan "Ye old reliable"
1979 Yamaha XS 650 SE ( almost toasted...)
1960 Girl-Friend ( frame still good , body has some dents )

apstguy

04-05-2003 12:35 PM

It is called Hydro-boost. Uses the power steering pump to get pressure instead of engine vacuum. Diesels don't have vacuum. Yes it is a very common feature for power brakes on diesels.

apstguy

04-05-2003 12:47 PM

I just saw this was double posted - sorry! Delete this one!

Grim Reaper

04-06-2003 12:25 PM

Quote:

Originally posted by apstguy
It is called Hydro-boost. Uses the power steering pump to get pressure instead of engine vacuum. Diesels don't have vacuum. Yes it is a very common feature for power brakes on diesels.

Yep and GM is using the same set up on 3/4 ton gas trucks now as well. Good idea if you ask me. More consistant breaking.

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