I say the restriction is likely deep in the thorat of the intake manifold AND the #2 & #3 intake passages of the cylinder head.veget8 said:... so if it is a restriction, it still could be on either side of the turbo.
So we're down to the following possibilities if it's air related:
1. Restriction in the intake path (but where? intercooler; intake ports on head)
Herm TDI said:I say the restriction is likely deep in the thorat of the intake manifold AND the #2 & #3 intake passages of the cylinder head.
Scott,veget8 said:I have my intake manifold off and I took some photos of the ports, which I will post shortly. At first glance I didn't see anything too bad, but I shoved a stick in there and felt some serious thick gook, deep down in.
It's so thick and down in there that I have no idea how I'm going to get it out, right now. I am going to do some searches on this but I just wanted to get a status update on here ASAP.
To everyone else who spent time thinking, pouring over photos, plots, data, and offered suggestions- I wish I had enough money to send you each $100. My gratitude is beyond words for your trying helping a friend in need. I look forward to hopefully meeting some of you at a future get together, perhaps.Herm TDI said:You mentioned that you cleaned the intake manifold assembly.
Did you also clean the air inlet passages in the cylinder head? I had an A-3 come to me after it had been in the hands of a "stealership" for a persistent low power problem.
I removed the intake manifold and found #3 air inlet passage about 90% blocked/ clogged and #4 air inlet passage was more then 50% blocked.
Insted of sending me the $...please split the differance.veget8 said:HermTDI is the winner. This was the 3rd response to the original posting I received and specifically addressed the port blockages. Thanks Herm- you have a PM.
The procedure that I use is reather straight forward.veget8 said:Herm- How do you clean the inside of the cylinder head ports effectively? It's definitely coated with sludge, but if there is a blockage, it appears to be pretty deep down (really hard to see). What kind of implement do you use, and how persistant should I be about trying to get it clean?
Nice call Herm.Herm TDI said:
The money has been sent according to your wishes. A very admirable choice. Thanks againHerm TDI said:
Nuts. I definitely have some sort of intake blockage post turbo. Here's the graph:veget8 said:HermTDI is the winner. This was the 3rd response to the original posting I received and specifically addressed the port blockages.
How should the engine be rotated over slowly to allow the intake valves to be closed on each cylinder one by one for this process? Perhaps a long breaker bar with a socket on the bolt of the crankshaft pully?Insted of sending me the $...please split the differance.
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