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Hi
i need a pointer on where the bungs go so I can test the car I haven’t done it in a few years so forgotten I’ve looked for a thread but alas no luck anyone help please.
Just plug the Maf hose and test from there, it will test everything then, including the PCV system. You will need to check the Diverter valve diaphragm though as you’ll be pressurising it from both sides.
If you want to separate the PCV system then disconnect the hose in the side of the maf hose and plug the hole. If you get air coming out the cam cover pipe (or the black tube on the 3B) then your PCV valve under the IM is broken or stuck open.
Just plug the Maf hose and test from there, it will test everything then, including the PCV system. You will need to check the Diverter valve diaphragm though as you’ll be pressurising it from both sides.
If you want to separate the PCV system then disconnect the hose in the side of the maf hose and plug the hole. If you get air coming out the cam cover pipe (or the black tube on the 3B) then your PCV valve under the IM is broken or stuck open.
The cheeese is good..
Hmm think my system should be airtight only thing im wondering about is the pcv pvc hose in the rear of the engine.
Rest of the system is brand new silicon hoses
Beware the 3B PCV hose, it will split when you pressure test (IRL it only sees vacuum)
It’s the hose which is a short 30-20mm ? With a long 8mm T up to the back of the cam cover. You can replace this with a silicon reducer and a T, a joiner and some hose.
I did make some alloy 30-20-8 adapters ages ago but all gone now.
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