Recent content by cjmmbrock

My Yanmar 3 cylinder diesel (John Deere 750) ran hot and deposited some piston material on the cylinder wall. I've plan to get some Muratic acid next time I'm in town and see if it will remove the metal. Has anyone tried this before and is it OK on this type of cylinder? Any better ideas...

I need to do a leakdown test on my JD 750 and need to remove the injectors. Sorry for such a basic question, but before I remove the studs that hold them in, I wanna check and make sure theres not an easier way to get them out. My question is: Do I have to remove the studs? It looks like the...

Has anyone ever heard of the intake valve lash closing by itself? I'll make a long story short, and say I'm trouble shooting a 3 cylinder Yanmar. The last time the engine ran, it overheated, then wouldn't start. When motoring the engine, all 3 intake valves allowed cylinder pressure to come...

Last week my JD 750 started great, but when I tried to do some bush hogging, the engine quit without warning. It restared fairly easily, but whenever I tried to put a small load on the engine it would quit again (I also noticed a lot of blow-by coming from the hose attached to the valve cover)...