Spill-proof funnel radiator cap attachment doesn't fit.

[Dechlan Tutty]

Hey everyone,

Sorry for the hogging of the forum asking all these questions, I just feel like the response is so quick and everyone knows their s**t about these cars. This is gonna be one of my last as I'm getting pretty familiar with the car now. I think during COVID it's spent more time with the bonnet up and in the garage than on the road lol.


Anyway, I have this spill-proof funnel that's my parents, and I was looking at doing a coolant change on my SV6 this weekend, but I trial fitted the radiator/'coolant recovery' cap attachments and none of them fit. I feel like the rubber seal and plastic seat properly, just the thread pitch on the motor seems to be a little bit coarser than what is on the funnel's fitting so I can't tighten it down, stopping it from having an air-/water-tight seal.

Has anyone got a suggestion to get my funnel to work to raise the highest point in the system so I can bleed it properly when I'm filling the motor?
Also, are there any tips/tricks I should know before taking this job on myself? Like, do I pull the coolant reservoir off? It's gotta be pretty similar to any other car, surely...

Thanks in advance.

 

[lmoengnr]

Duct tape, and zip ties...

 

[Dechlan Tutty]

Duct tape, and zip ties...

Haha that was one idea, I was just curious if there was a different fix. Cheers

 

[mpower]

i had to read that wall of text 3 times, i think you need to use the bleed valve that's what it's for.

watch this terribly dark video to see how.

 

[Fu Manchu]

https://forums.justcommodores.com.au/threads/vz-ve-vf-alloytec-cooling-system-repairs.279976/

 

[Fu Manchu]

The bleed valve will never come close to removing the air. It does assist in filling the system a little quicker.

There can still be over a litre of air trapped in the cooling system.
The only two ways of getting them out is either vacuum filling it (need a compressor first)
Or
Bleeding the air out with the car running and having the thermostat go through multiple openings.

 

[mpower]

so this changed between the VT and the VZ?

 

[shane_3800]

Have you tried silicon spray on the threads?

 

[shane_3800]

so this changed between the VT and the VZ?

VZ is alloytec VT is a buick engine named ecotec. So two completely different systems.

 

[mpower]

VZ is alloytec VT is a buick engine named ecotec. So two completely different systems.

yeah so the bleeding is completely different?