I recently had to do some work on my L175- never touched a desiel before- hadn't really worked alot on gassers either- I didn't get into major stuff, but had to pull the head. It really isn't that complicated- I would get a manual for spec's and such. I agree with the other posts- try the simple stuff first. I was amazed how much better mine ran after the little bit of work I did. Feel free to pm me if you have any questions.
I recently had to do some work on my L175- never touched a desiel before- hadn't really worked alot on gassers either- I didn't get into major stuff, but had to pull the head. It really isn't that complicated- I would get a manual for spec's and such. I agree with the other posts- try the simple stuff first. I was amazed how much better mine ran after the little bit of work I did. Feel free to pm me if you have any questions.