Break booster (1 Viewer)

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Jul 20, 2022
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Grafton Vermont
Anyone have experience with adding a break booster to a diesel...? I've been told I could use and electric break booster to avoid the issues with a vacuum type.
 
I have a standard / original vacuum servo (Brake booster) on my HJ45 (3.6L H engine).
The vacuum should be produced by a vacuum pump on the back of the alternator, and stored in a reservoir under the floor.
I guess the alternator gets changed out sometimes and the vacuum pump lost.

Mine was missing, so I added a small vacuum reservoir under the hood, along with an electric vacuum pump (very common setup in modern diesel engine cars).

What are you starting with?
 
I have a standard / original vacuum servo (Brake booster) on my HJ45 (3.6L H engine).
The vacuum should be produced by a vacuum pump on the back of the alternator, and stored in a reservoir under the floor.
I guess the alternator gets changed out sometimes and the vacuum pump lost.

Mine was missing, so I added a small vacuum reservoir under the hood, along with an electric vacuum pump (very common setup in modern diesel engine cars).

What are you starting with?
Sorry for the very late reply...I have a HJ45 3.6 diesel also. Any recommendation on what vacuum pump to buy?
Thanks!
 
It looks like in the end I used a vacuum pump from a range rover, and a vacuum reservoir from an Isuzu trooper.
Because i didn't have the original reservoir with its switch, I also bought a vacuum switch from aliexpress - is wasn't expensive and came with a little harness to connect to the pump and power feed.

When i turn the key on, my pump fires up immediately for a few seconds, and then tops itself up as needed. You do need some sort of reservoir, just depends what few space you have and what you can find on ebay that looks like it will work.
 
It looks like in the end I used a vacuum pump from a range rover, and a vacuum reservoir from an Isuzu trooper.
Because i didn't have the original reservoir with its switch, I also bought a vacuum switch from aliexpress - is wasn't expensive and came with a little harness to connect to the pump and power feed.

When i turn the key on, my pump fires up immediately for a few seconds, and then tops itself up as needed. You do need some sort of reservoir, just depends what few space you have and what you can find on ebay that looks like it will work.
Thanks for the reply! I'll post whatever I end up in the future.
 

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