Toro CCR 450 seized engine question
I recently picked up a unique Toro CCR 450 with a Tecumseh LH195 (I think) that was sitting on the curb, its essentially a 38586. The recoil was stuck, so i managed to free it by squirting some PB blaster in the spark plug hole and putting a torque wrench on the crank bolt and gently rocking it back and forth. I did get it started... for about 3 seconds and then it stopped and locked up again. I was wondering what might have caused it to seize originally and the second time after i freed it... the engine was full of oil when i found it seized. If i'm able to get the engine out I want to take it apart out of curiosity, see whats going on.
Cylinder rust or debris? Especially if it sat in the rain for years without moving the piston with no plug in it.
Last edited by unknown1; 10-13-2017 at 08:39 PM.
Last edited by TheFanMan; 10-13-2017 at 08:43 PM.
This might be your chance to whip off your first head and take a look-see. Nothing to lose if you watch a few videos first. Just a gasket and torque-wrench to put it back. Let's hope someone may have a few better ideas first though. It was a freebie. Great opportunity to learn a bit more. I dismantled an engine that threw a rod just to get that hands-on feel. Maybe I'll rebuild it too just to see how that goes.
I'll be interested to see what people suggest. Carburetors get a bit boring once you've nailed them. Great place to start though...if you screw up... pay $10 and get another.
EDIT: IF you crank it by hand then .. yes... the piston goes up and down and the rod does the rod-thing .. the valves do the valve-thing ..but they should be fairly silent. If you hear noises then I'd like to know what is making that noise before starting it again. Just by knowing what's in an engine I'd think what can possibly make a noise like that. Grabbing a thought from thin air I might wonder if the connecting rod is loose. But these are just wild thoughts that makes it all fun as you triage and reverse-engineer. Engines aren't all that complicated when you stop and think about it.
You can pick up 95% of the knowledge in a couple of weeks. The next 5% takes 50 years. I think that's why the most experienced people still hang around... they always pick up a trick or two 99.56% and counting.... no-one can get to 100 :-)
Last edited by unknown1; 10-13-2017 at 09:32 PM.
Go for it!! You know you want to. BTW HF also sell those stress gauges that fit to any wrench and turn them into torque wrenches. Not tried one.. if you DO let us know how that shakes out. Grab an engine manual, learn the zig-zag pattern and just hope HF didn't sell you a lemon. If you've got a spare $2300 lying around.. buy a Snap-on ;-)
Last edited by unknown1; 10-13-2017 at 09:50 PM.
Let's have some pictures of that prototype :-)
Last edited by unknown1; 10-13-2017 at 09:45 PM.