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good to know.. I dont fix these for a living, ive fixed a few motors with failed ACR and obviously the symptom is like a very weak battery.. take the plugs out and it cranks fine. so I assumed it was a broken ACR. this was the 1st time i came across a motor with no mechanical ACR.. so thanks for...

it was still turning over fine.. new battery.. and even better than before with the compression release cam. its very odd.. im thinking it was coincidence.

ended up putting in a new cam with the compression release.. runs like a champ now.. one very odd thing though, the valves coming out of adj, or the cam wearing a bit ( this mower is old ) over time will increase the compression.. my friend said it was getting harder and harder to start. when i...

anyone know where i can get the bolt torque specs for this motor?

yup.. it looks like the older cam. so maybe the valves are too loose.. might just get the updated cam

that is interesting.. i couldnt see it however i did not take out the cam.. there are definitely no parts in the bottom of the case but i suppose its possible that the acr is stuck closed ? the other thing is, i think the replacement cam does have the ACR.. so maybe it did not have one from the...

Hello, I have a briggs 441777 Type 0283 E1 Wouldn't crank .. and barely with the plugs out.. so I got a battery. Then it would crank with plugs out but hang up on the compression stroke.. So I assumed the compression release broke.. Took it apart and it looks like it doesn't have one.. I've...