I have a 3QM30 with 5500 hrs. A few years ago the injection pump was leaking diesel
so I took it to a local shop (in Mexico) to have it worked on. I told them not to take it apart, just to replace the 'O' Rings that were leaking.
Unfortunately, the translation didn't go over and they pulled the whole thing apart. They couldn't get parts
, so I had a friend hand carry a set of seals
, barrels/plungers and delivery
valves down from the US. Cost on the parts
was about $500 USD. The lab (if you can call it that) put it back together and it ran well enough. Later in Hawaii
I had it checked out and they said it was pretty tight, so the Mexico
guys did a reasonable job.
The injection pump on the 2QM is very similar to the 3QM (it has the same parts, but two plungers instead of three). I'm not a mechanic
, but if I were you and I suspected the injection pump had a problem I'd have it tested first. This will run you about $100-$150 USD depending on who does it and they will tell you if it needs to be worked on. A lab that can do the testing can probably handle the rebuild
too. The rebuild
is not something to do yourself.