Ive got a spare throttle body I want to swap with the one on the engine to try solve my fueling issues.
The TB on the engine has 2 pipes coming out for the vaccum hoses to the brake servo.
The spare one I have has one blocked up.
Can peeps put up a pic of an engine with the 1 pipe please, cant seam to find one yet.
I pressum the spare TB I have is from a prefacelift as my engine is facelift.
Vaccum Hoses.
Moderator: martauto
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Sanchez
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Brianmoooore
- E30 Zone Team Member
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This is a mod. I often do as a matter of course.
Your spare TB is from a late model which was fitted with a greatly simplified vacuum feed to the brake servo, similar to that used on the M40/42 E30, and on all later BMW models.
You need an air pipe from the air meter to the TB that doesn't have the branch to the servo valve, a simple angle non return valve from an M40 E30, an E36, E34, etc., and some vacuum hose.
Connect some hose from the TB to the valve and more hose from the valve to the servo. Simple.
You can even turn the servo upside down if you like, to bring the vacuum connection to the top side nearer the engine.
Your spare TB is from a late model which was fitted with a greatly simplified vacuum feed to the brake servo, similar to that used on the M40/42 E30, and on all later BMW models.
You need an air pipe from the air meter to the TB that doesn't have the branch to the servo valve, a simple angle non return valve from an M40 E30, an E36, E34, etc., and some vacuum hose.
Connect some hose from the TB to the valve and more hose from the valve to the servo. Simple.
You can even turn the servo upside down if you like, to bring the vacuum connection to the top side nearer the engine.