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Dougfur


Joined: Jan 22, 2010
Points: 6

Recoil Locking Up
Original Message   Jan 22, 2010 10:37 am
I have a Toro two -stage, 1978 vintage. It was originally a 5/24, 31625. This fall I had it repowered with a rebuilt Briggs 8Hp

Initially, it ran great. now I'm having a problem with it stalling and the recoil locks up. I'm thinking that the recoil locking is causing the stalling

I go to restart it manually, and it takes 3-4 heavy pulls to get the recoil to release. Once it does, it starts and runs fine

Suggestions as to what the problem is? no other problems other than this

thanks

Doug

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Dougfur


Joined: Jan 22, 2010
Points: 6

Re: Recoil Locking Up
Reply #5   Jan 22, 2010 2:20 pm
It happens after it's run for awhile. The fellow who rebuilt it is a retired machinist who rebuilds rotary engines for a side business.

So,I'd assume the tolerances are good and he knows what he's doing. It's got dino oil in it now, I will try the synthetic-any recommendations?

borat


Joined: Nov 10, 2007
Points: 2692

Re: Recoil Locking Up
Reply #6   Jan 22, 2010 3:31 pm
Dougfur wrote:
It happens after it's run for awhile. The fellow who rebuilt it is a retired machinist who rebuilds rotary engines for a side business.

So,I'd assume the tolerances are good and he knows what he's doing. It's got dino oil in it now, I will try the synthetic-any recommendations?



Sounds like a seizure problem. Assuming the tolerances are good, isn't going to make the problem go away. You can try the synthetic oil to see if it helps but, if condition continues, you had better open up the engine to see if you have cylinder scoring and possible friction melting on the piston. Either way, if it isn't attended to, the engine won't have much of a future.
niper99


Location: London Ont
Joined: Dec 2, 2007
Points: 354

Re: Recoil Locking Up
Reply #7   Jan 22, 2010 3:57 pm
most common mistakes made from rebuilding is the piston rings being the correct size, does it do it within the first 5 mins of running?. as borat mentioned the piston or rings will expand while running causing it to seize, but in my expereince the engine will quit within a few minutes of running, let sit for 5 or 10 min then will restart. when it stops running u could try taking the starter off quickly and turn the motor over by hand or with a tool, take the spark plug out when u do this the engine should turn over easy. if not l would say u have a big problem.
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