spitzair
Senior Member
Hello and Merry christmas everybody.
I've finally gotten around to taking my older 977H D333 engine apart to try to fix it. It wasn't firing on all cylinders and had tons of blowby. The #3 piston seems to have very worn rings, it is coated in wet oil and lots of coking. Then there's the #5 piston as you see in the picture... It is just full of pits and holes. There still seems to be compression on this cylinder because there's very little wet oil in there but tons of coking on the head. I have 2 new pistons with rings and 6 new injectors that will be going in tomorrow. Hopefully this will fix the problem. Is it a good idea to run a cylinder hone down the liners while I have the pistons out? The #3 cylinder looks quite glazed... Is there anything else I should look for while I have it apart? I suspect the injectors caused the problems on the #5 piston as there's a whole mishmash of injectors in the engine, none appear to be the right part number for it... There was also no other debris in the cylinder...
I've finally gotten around to taking my older 977H D333 engine apart to try to fix it. It wasn't firing on all cylinders and had tons of blowby. The #3 piston seems to have very worn rings, it is coated in wet oil and lots of coking. Then there's the #5 piston as you see in the picture... It is just full of pits and holes. There still seems to be compression on this cylinder because there's very little wet oil in there but tons of coking on the head. I have 2 new pistons with rings and 6 new injectors that will be going in tomorrow. Hopefully this will fix the problem. Is it a good idea to run a cylinder hone down the liners while I have the pistons out? The #3 cylinder looks quite glazed... Is there anything else I should look for while I have it apart? I suspect the injectors caused the problems on the #5 piston as there's a whole mishmash of injectors in the engine, none appear to be the right part number for it... There was also no other debris in the cylinder...