10-08-2016,
Here is what I use...
(when doing only the enigne itself): For the Doser pipe,.. I remove the pipe that goes down towards the DPF,.. Then I stuff this inside, and inflate it to 35-PSI.
https://amzn.to/2EdGuLn
For the intake, I remove the air filter and stuff one of these (depends on size of pipe) into the pipe, inflating it to 35-PSI ...
https://amzn.to/2JCbxEe (4 to 6 inch intake pipes)
or...
https://amzn.to/2JE1EWq (8 inch intake pipes / bigger KW's etc.).
======
I use a bicycle pump to inflate them.
After I plug the entire engine,.. I remove the turbo inlet temp sensor and have an adapter I made to put about 10-20 PSI of air (with a really good regulator and pressure gauge).
I listen for leaks (it needs to be fairly quiet around the truck),.. and use soapy water on every pipe and gasket, the CAC, and a lot of other components too. It is extremely effective in finding fuel mileage loss and boost leak problems... Even if they are minor.
I also use this with my EVAP machine sometimes and that is very effective too.
You would be surprised at the places that engines will leak, such as a bad air compressor head leaking boost into the crank case, etc. -- I even found a bad EGR cooler once this way that was putting pressure into the coolant system.
======
I have always been able to find leaks with the tools I mentioned above, but in your case though,.. you might want to have something made that will allow for even higher pressures to be used.
I also own an EVAP machine. This is a good compliment to being able to plug off the whole engine and/or its exhaust system too and find leaks ...
here is the one I have: https://amzn.to/3iW1e1D
(when doing only the enigne itself): For the Doser pipe,.. I remove the pipe that goes down towards the DPF,.. Then I stuff this inside, and inflate it to 35-PSI.
https://amzn.to/2EdGuLn
For the intake, I remove the air filter and stuff one of these (depends on size of pipe) into the pipe, inflating it to 35-PSI ...
https://amzn.to/2JCbxEe (4 to 6 inch intake pipes)
or...
https://amzn.to/2JE1EWq (8 inch intake pipes / bigger KW's etc.).
======
I use a bicycle pump to inflate them.
After I plug the entire engine,.. I remove the turbo inlet temp sensor and have an adapter I made to put about 10-20 PSI of air (with a really good regulator and pressure gauge).
I listen for leaks (it needs to be fairly quiet around the truck),.. and use soapy water on every pipe and gasket, the CAC, and a lot of other components too. It is extremely effective in finding fuel mileage loss and boost leak problems... Even if they are minor.
I also use this with my EVAP machine sometimes and that is very effective too.
You would be surprised at the places that engines will leak, such as a bad air compressor head leaking boost into the crank case, etc. -- I even found a bad EGR cooler once this way that was putting pressure into the coolant system.
======
I have always been able to find leaks with the tools I mentioned above, but in your case though,.. you might want to have something made that will allow for even higher pressures to be used.
I also own an EVAP machine. This is a good compliment to being able to plug off the whole engine and/or its exhaust system too and find leaks ...
here is the one I have: https://amzn.to/3iW1e1D
Tags:
pipe plugs, boost leaks, pressurize engine, pressurize entire engine, engine testing