Thanks, I've got a 670 crankcase I can put all the parts from this one on.Sorry about your saw, Ronie. I bet someone has a crank, piston, and cylinder hanging around
I had a hyway piston once that I couldn’t use oem circlips because they didn’t fit in there.I was out in my shop last night and took another look at the piston, that piston lost the clips from both sides. I'm thinking the oem ones didn't fit down deep enough in the grooves.
I'll be paying closer attention from now on.I had a hyway piston once that I couldn’t use oem circlips because they didn’t fit in there.
I think we all do it at least once. It sucks to have to clean up the aftermath, but it happens.I'll be paying closer attention from now on.
Pics of the upper transfers?
Meteor circlip grooves are fatter than OEM grooves. Always use the meteor clips. I know this wasn’t your issue but it’s an observation I’ve made when installing OEM clips in a meteor piston.I'll be paying closer attention from now on.
The last 372xp OE meteor one ring piston I used, the circlips were a touch thinner than oem. In fact they bent on installation from being weak and I used the oem clips from the old piston. Fit just fine. This is why I always look over AM parts carefully, even a higher quality piece like a meteor piston I give a look over.Meteor circlip grooves are fatter than OEM grooves. Always use the meteor clips. I know this wasn’t your issue but it’s an observation I’ve made when installing OEM clips in a meteor piston.
Inspection and measurement of everything is important.The last 372xp OE meteor one ring piston I used, the circlips were a touch thinner than oem. In fact they bent on installation from being weak and I used the oem clips from the old piston. Fit just fine. This is why I always look over AM parts carefully, even a higher quality piece like a meteor piston I give a look over.
Glad you caught it Mason, just more proof even the most reputable AM parts have variation that OEM “usually” does not.The last 372xp OE meteor one ring piston I used, the circlips were a touch thinner than oem. In fact they bent on installation from being weak and I used the oem clips from the old piston. Fit just fine. This is why I always look over AM parts carefully, even a higher quality piece like a meteor piston I give a look over.
Stuff happens. First saw I ever bought new was a 460 stihl. Ran perfect for 5 years of 15+ cords of firewood a year. Clearing property for my house it decided to eat a circlip and the pin came out and got stuck in the transfer port and completely wrecked the jug. Saw was all stock, never apart at that point.I went out and pulled the piston out of the cylinder and I guess I was wrong about the gasket failing. It looks like I lost a clip and the piston pin rode out and caught the transfer. Then the broken pieces of the piston got caught between the counterweights and case and broke through onto the oil tank. I'm pretty sure I installed both clips and they were oem.
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I always put them in, then spin them around to 12.It might seem stupid but after having a clip pop out with the opening around 9:00/3:00 and destroying a 365 hooskie cylinder... I decided to install them with the opening at 6:00 or 12:00. I think it makes a difference. I could be wrong, but I think the forces can cause the clip to compress open if there around 3:00/9:00. Especially if the circlip is a little weak. Not a expert here... just a chainsaw hack lol.