Ms462 base gasket delete
- Thread starter TX_Welder
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Finnrpm
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This .....
works on that carbon, just keep it away from any plastic parts........
https://www.motul.com/au/en/products/throttle-body-clean-pro
RV
works on that carbon, just keep it away from any plastic parts........
https://www.motul.com/au/en/products/throttle-body-clean-pro
RV
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Bigger the piston the bigger the squish clearance necessary.
MustangMike
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I imagine the distance between the pin and the dome would be a factor also, not all of them will be proportional.
If you are expanding at X%, the distance will matter.
If you are expanding at X%, the distance will matter.
MustangMike
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FYI, just based on my own fears and nothing else, I shoot for .020 on my saws, will live with .017/.018, but any less I put sandpaper on a piston and try to increase the squish. I would just rather be safe than sorry.
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My 661 has 0.015 squish
Been like this for 2 years
Been like this for 2 years
Bigmac
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Yes. I use super soft solder at the wrist pin edges roller the motor over several times to make sure it is accurate. Your 700 was three 233cc, my 440 twin 0r 220 cc a hole, I kept tighten the squish on that motor in testing, at .029 it left light rings on the outer edge of the piston and dome of the head, so I keep it in the low .030’s now, same thing on the cr500, at .045 it lightly kissed so I keep them at .050 now.
I haven’t pushed a saw to kissing the dome, so I don’t know the limits .017 is the tightest I have ran, and no issues
Bigmac
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Yes I agree, I haven’t tested the limits of saw, probably won’t, but it is good to know guys aren’t having issues at .015-.017, I will feel more confident setting stuff up at .017
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Would be no biggie to make a gasket out of a piece of paper and get it in the low .020"s.
TX_Welder
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Kind of wish I would have went 1/4" or 5/16" wide on my muffler mod opening. Felt like I lost some torque but the timed cuts say I picked up a full second. Cutting 18-20" elm in about 11.2 seconds. 20" bar hand filed semi chisel. Wish I could upload the video.
Base gasket delete ended up .020 on the dot.
Added second port on the muffler 3/8x1"
Took .017 off the flywheel key.
Base gasket delete ended up .020 on the dot.
Added second port on the muffler 3/8x1"
Took .017 off the flywheel key.
