Throttle Body Connections

[mhyphenl 10 1 Cars]

Take a look at these pics and help me sort what goes where.

 

 

 

Aside from Air screw, air-con thingy, water pipes which are fairly obvious to all, what should go on A, B, C and D?

 

A - This had the breather to the oil filler on it, it only has a pin hole through to the chamber

B - This had the pipe to my EVAP purge valve, this is a full diameter hole,

C and D were blanked with some hose and a screw and are again just pin holes.

[welshpug 1,661]

c and d are for vac advance and a test point.

 

you've identified a and b already

Edited August 18, 2016 by welshpug

[mhyphenl 10 1 Cars]

Hi Welshpug,

 

I thought I was confident in A and B but the Service Box diagram shows the breather hose going to the underside of the TB. I've taken it off because I have a leak somewhere and wanted to find it but was surprised to see that the connection 'A' for the breather only has a pin hole going through to the chamber but the Evap purge 'B' on the bottom is full width. I'm assuming 'B' has more suck because of this and it just surprised me that the EVAP system would have that much vacuum through it!

 

Is there a neat way to cap off C and D, can you buy rubber things to cap them, tried searching ebay and google but don't know what to call them!