Recent content by mmoustafa

So I first took apart the engine, cleaned all the parts, lapped and adjusted valves (I ended up having to do this 3 times), replaced all gaskets and seals, lubricated the parts and assembled. I didn’t hone the cylinder and I reused the rings. I also had to fill and drain the engine oil twice...

Yeah, I took it off an old mower with the intention to rebuild and restore.

Fair enough, I’m probably better off just using the crank case on the scrap engine as well. But what would’ve caused the scoring in the first place? There were no defects on the cylinder or piston after I cleaned them and I made sure all parts were well lubricated?

I’ll try buffing with some emery paper and scotch brite. If that doesn’t work I’ll hone it. Then I plan to take out the piston and rings from a scrap engine and re-install (NO carby cleaner) I just want to get it working so I’m hoping this will get me over the line...? Trying to diagnose the...

Hi all, So I managed to get the valves to spec and reassembled the engine. I left the carby off to test it. I did this by spraying some carb cleaner through the intake pipe. After a few tries the engine completely seized ? So I started by removing the spark plug and as soon as I removed it the...

Yeah the clearance is way too low... so once I can get the engine started I plan to grind it down to spec and reinstall... I'm hoping the magneto is good... Thanks again all for you help.. this forum is very beneficial (y)

Hi all, So I tested the mower last night and it was much smoother this time - at least it wasn’t getting stuck anymore. I’m thinking it was getting stuck because I overfilled it with oil and this was creating additional resistance? Could this be the case? The valves were moving smoothly but I...

I just finished draining the oil and have disassembled the fuel tank and muffler. Will try what you’ve suggested @bertsmobile1 and let you know how it goes. Thanks. Regards.

Yeah it’s the same with the spark plug in and out. I am going to check to see if the flywheel key is still ok.

https://kapwi.ng/c/h2E2RsQR Hi again, the link above shows a video of me trying to rotate the flywheel and you can see how it’s getting stuck. I know my valve clearance is out but I didn’t think it could create this problem? I’m thinking to grind the stems again to get the clearances to spec...

Exhaust = .0035" Intake = .006" I also overfilled with engine oil which i plan to drain later but didn't think that would affect the operation.

Thanks bertsmobile1, I ended up correcting the orientation of the valve springs. So after assembling my 4 stroke B&S mower engine (Model 95902), I noticed the flywheel isn't rotating smoothly by hand. It's easy enough until I get to the intake stroke then it gets stuck and requires more force...

Thanks for the replies. I ground the stem down using some sandpaper, lapped them in and reinstalled them (using cable ties - a trick I saw online but definitely want to invest in the actual tool). Then after installing the head I realised the springs are in the opposite orientation (one has the...

Hi all, After measuring my valve clearance with a feeler gauge the exhaust cleanse is under at .006” (spec is between .007-.009”). I couldn’t get a good reading on the intake side because it was so tight (spec is between .005-.007). My question is how critical is it to have a gap? And what...

That’s reassuring, Thanks Rivets. Yeah I will lap them in after giving it a wash in some kero.