My old HY35 blew a seal just be for I replaced it. I knew it was leaking in to the exhaust. I changed out my boot clamps today. Just to be safe I pulled the boots to clean the portion that creates the seals. When I pulled them I noticed oil in all of them including the ones on the intake horn. I checked the new turbo and the oil did not come form it. So I have to assume that it came from the old one and that the intercooler has a fair amount of oil still in it. Is this something that I should worry about? If so what can I do about it.

 

you could remove it and have it cleaned in a vat or something similar

 

Don't worry about it.
Most turbos leak a bit when idled to long.(A reason to avoid extended idle.)
Because boost pressure seals the turbine shaft to the housing. Boost presure works against oil pressure and avoids leakage.
I also have a bit oil in the intercooler when I drive in the stop and go city traffic.

Air flow will suck the oil into the chambers and burn it.

VW as an example used this and the crankcase ventilation in the earlier turbo diesels to provide a constant oil fog to lube the intake valves.

 

It depends on the amount of oil you are finding. If it just a little bit, no worries. If there is a lot of oil you'd better pull that cooler and have it cleaned. If the oil get hot enough and finds its way into your engine, you will have a run away. Shutting the key off will do nothing as the engine has now found a different source of fuel.

 

In the tubes and the boots it was a caked on pretty good. I would say it was around a MM thick on the boots and a light coating in the tubes. I to had to scrape it off. I had to use a spoon in a rag to get it off the boosts. Where would I go to have it cleaned?

 

Prolly any place that cleans radiators and such i would think?

 

Or you could remove it yourself and pour some gasoline in it and shake it around for awhile, should get it out.

 

Yep, take it to a Radiator shop and they should be able to clean it. If you have access to a pressure washer with the ability to make hot, HOT water you can use it. That is the way we clean the Intercooler tubes and the Intercooler itself at work. Just watch the pressure, I will close off the valve between the Hotsy and the washer handle until the pressure and temperature is correct.

 

I am a little leery of using gasoline. But thank you.

 

I would take it to a radiator shop. Even though it costs money. Then it will get done right. Better to be safe than sorry