Hi, I di some trading with my brother this summer traded a Tecumseh OH160 for a Simplicity 3416H its a 72 model with a hydro and a B&S cast iron 16hp 7 years ago I put a good used engine it it for him and it was gtood until about a year ago it wouldn't start no compression> So when I got it in the shop I pulled the head off thinking maybe a stuck valve but it turn out to be a benrt exhaust valve. I have a good running starter/gen B&S 16 hp so have been trying to decide should I install a good valve or install the other engine well today I decided to change out the engine so got started today got the bad one out. Ran into a bit of a problem the bad engine has a dipstick / oil fill set up the good engine has the typical B&S screw cap fill oil level check normally this would not be a problem but this Simplicity install has the engine sitting doen in a hole so I'll have to see if it will fit in and be able to add and check oil