How difficult is to replace the injectors myself?

it is extremely easy. just need a good set of feeler gauges to set the valves and Jake's with. also will require you to buy the injection height tool. pretty sure it was 80 bucks. but was years ago when I bought mine so it could be more today, or possible my memory is off. i'd suggest getting the injectors straight from Detroit or freightliner. aftermarket won't be much cheaper and will need Detroit to program them after install. oem injectors have the correct parameters already uploaded so they match up to your ecm.

oh and make life easier on yourself, drain some coolant so you can remove that top radiator house, it's a pain getting the valve cover off with it in the way(tho can be done).

 

it is columbia! #5 and #6 injectors are under cab, so some acrobatics required.

I'd change sleeves, so yoy need a tool for sleeves, as I remember on late series 60 they are threaded and easy to change, not like on Volvo ore 12.7

 

Are you certified to do this i believe dot regs got you paying a mechanic to do almost any major repairs

 

WHAT?Where did you come up with that

 

Have you ever heard the saying "Dont believe everything you hear"? Obviously not...lol. Thanks for a good laugh though!

 

And you've been trucking for 11 years? that's some funny #### right there

 

it's really not that bad. the can is cut back around the engine, gives plenty of room.
what sleeves are you referring to? do you mean the injector cups? You get to them from the bottom of the head, not the top.

op, make sure you buy new orings for the injectors if they don't come with them. also buy a tube of oring grease so you don't risk tearing one while pushing the new injector down.

 

When I had my Volvo done they found it easier to unbolt the front cab mount and jack the front up a little.
They had to remove that front piece of side fairing/fender extension, but still found it the easiest way to get the valve cover off. They did the drivers side, I don't know if it makes a difference.

 

Engine oil works so does Vaseline, probably cheaper too.