Replacing turbo and what else???

Well i would just replace turbo gaskets its nice if you replace the nuts just to be safe definately replace the Ir filter and inspect turbo pipe and clamp also there is two boost o rings that mount on the down pipe going to the cac replace those as well . As far as youre CAC volvo has a good mount its vertically I've replaced a ton of turbos on volvo and what u want to do is remove the bottom pipe to drain the oil and the before starting remove the top pipe going to intake and rev it up a couple of times so it blows out mething thats stick as far as the exhaust system u dont need to do nothing with it let me know if u need something else.

 

I'd start with visual inspection, checking turbo for play, oil leaks.

If really turbo goes bad it throws oil it intake of engine and it may rev up and blow, but not fire like you say.

but sometimes turbo throws oil in exaust pipe and it may caught fire. fortunatly not too much oil and no oxygen to burn for long time, but people say there were accidents when sleeper may be ignited too.

So my advice - change turbo, gaskets and exaust pipe.

 

Send the CAC to a radiator shop to be cleaned, tested and painted. Don't try to do it yourself.

Remove and clean ALL of your intake air hoses. Don't forget to thoroughly clean the inside of your air cleaners and replace the air filters.

 

As I understand it, they will dunk it in an acid bath and remove the paint as part of the reconditioning process. You really want it done by a shop if the compressor wheel was damaged. You don't want to risk any of that making its way into your engine. If the compressor wheel wasn't damaged in the failure, then you might be able to skip sending the CAC to the shop.

 

we use to drill intercooler bottom with small bit to let oil out (to avoid self rev up after restart) and after that plumb this hole with small bolt

 

hello, i got volvo VNL 670, year 2017. Back in december gave it to mechanic because of engine derate issue. they changed fuel water separator and changed CAC pipe. within two months, engine light came up again, and engine derated, mechanic now suggesting to replace CAC. would need advice, whats going on with engine? is there any relation of CAC replacement with CAC pipe or its just normal wear tear? market is crazy and seems im paying mechanic $4-5 grnads every second month.

 

This thread is 9yrs-old and not the same setup as yours. You’ll probably want to stick with the thread you already started, so everything relevant is in one place.