Hi, newbie in engine mechanics trying to repair the engine of an old garden tractor (15 year old).
The engine was starting fine, but after 20-30 seconds starts smoking extremely (burning oil). It keeps running pretty well, but you hear RPM isn't very stable, oil is not over-filled.
After inspection we see oil in air filter box and carburator, and it also leaked oil under the cylinder head.
I've read it can be a blown gasket with this engines so we opened it up a little more... Removed the oil, spark plug (pretty black) and the OHV cap (don't know what's the right name), there was still a bit oil in it but suppose thats normal. Then we opened the cylinder head, first remark the piston was very black and we do see some cracks in the gasket.
Here some images:
What do you guys think, would that have been the issue ? Now it's open so far, anything else that should be replaced ?
Also removed breather tube which is open but als contains oil, can the cap also be removed as it seems to be stuck:
Don't know this can just be removed ?
So, here we are now... any tips welcome
The engine was starting fine, but after 20-30 seconds starts smoking extremely (burning oil). It keeps running pretty well, but you hear RPM isn't very stable, oil is not over-filled.
After inspection we see oil in air filter box and carburator, and it also leaked oil under the cylinder head.
I've read it can be a blown gasket with this engines so we opened it up a little more... Removed the oil, spark plug (pretty black) and the OHV cap (don't know what's the right name), there was still a bit oil in it but suppose thats normal. Then we opened the cylinder head, first remark the piston was very black and we do see some cracks in the gasket.
Here some images:
What do you guys think, would that have been the issue ? Now it's open so far, anything else that should be replaced ?
Also removed breather tube which is open but als contains oil, can the cap also be removed as it seems to be stuck:
Don't know this can just be removed ?
So, here we are now... any tips welcome