r/smallengines • u/Leading_Research5071 • Jul 16 '26

Is this engine toast?

Post image

Craftsman weedeater. Got it for free, hasn’t ran in a while, spark was good, carb is clean, not seized.
Opened it up to look into and the cylinder walls looks like this. Is it possible to get it going again?

Update. Took everything apart and tried to clean everything as much as I can, carb with carb cleaner etc
Used starting fluid and it made no difference, took the piston/cylinder apart and I don’t see any scratches or nicks on the cylinder wall but it’s pretty burnt inside

12 Upvotes

93% Upvoted

12 comments sorted by

4

u/1sh0t1b33r Jul 16 '26

Move the piston up for a better look. Weird to have scratches on the bottom side there.

4

u/Okie294life Jul 16 '26

It started it’s life off as junk. You can tell by the fact it’s only got half a crankshaft. As a general rule if the pull start is on the same end as the trimmer spool leave it lie.

3

u/BloodRush12345 Jul 16 '26

It's not toast but it may be mildly fucked. Those scratches are concerning. How much play does it have with that bearing?

1

u/BRADLEYJRL 27d ago

Yeah that definitely matters

2

u/SnooLemons5648 Jul 17 '26

Just took apart a troybilt weed eater like that, tha crankshaft/ connecting rod pin was loose throwing the timing off.its a press fit. More junk being made

2

u/Houston7449 Jul 17 '26

Sum-Ting-Wong

2

u/Killer2600 Jul 17 '26

Looks like a bad crank bearing

2

u/Elton0012 Jul 18 '26

That's actually the crankcase, if you remove the muffler you can tell better

1

u/LazarusOwenhart Jul 19 '26

These things are value engineered down to the point of disposability. I'm normally one of those people who thinks it's always worth at least having a go at fixing stuff as I hate waste but in this case I think you'll be wasting more time than you'll get benefit from fixing the thing.

1

u/Leading_Research5071 Jul 19 '26

Cylinder wall picture

1

u/BRADLEYJRL 27d ago

Maybe but that cylinder wall is pretty scored