Q for mechanics, re: throttle body (part removable?)

[anewman]

I was wondering if the brass connecting bit on a throttle body shown below (used to connect petrol vapour cannister and crank-case emissions vent pipes) should just pull out, and push back in? Reason I ask is my spare part does not have one fitted, and it is not available to buy without the throttle body.



Also was wondering if pushing the butterfly valve open in order to clean more thoroughly is ok? (A google throws up differing opinions). I am aware of the need to run a throttle body adaptation with diagnostic equipment and have the required gear to do this.

Thanks in advance

[robemcdonald]

On the picture you've posted the "brass bit" looks like some sort of hose union. This will probably be screwed in using a tapered screw thread (BSP or ISO thread form is most likely). Some sort of sealant/lubricant should have been used. If it was done by an owner as a DIY project then it's probably PTFE tape. Done at the factory and it's more likely loctite type product. Tape will be easier to unscrew. Be careful though as the union is probably very cheap and weak and may well break as you remove it.

[anewman]

Here is the hole



and here is the broken part that I believe is meant to fit in



It looks push fit, but it seems unusual a throttle body does not have a better seal, unless it merely relies on vacuum to create a seal. Also like you say it appears poor quality and easily broken hence my apprehension disturbing it.

[Superhoop]

It looks like it was held in place with loctite or something similar (the greenish stuff in the last picture)

It was probably broken trying to remove it, and it's likely to happen if you try and remove the other one from your spare one too

[robemcdonald]

Well you learn something new every day. Can't be very high pressure then.

From the picture of the brass part it looks as though some sort of sealant has been used. Make sure the parts are well cleaned before re-assembly.

[busta]

robemcdonald said:

Well you learn something new every day. Can't be very high pressure then.

Definitely not very high pressure- a vacuum in fact.