Caz
ArboristSite Operative
Anyone use a metal piston stop and will it dent or scar the piston head ?
Anyone use a metal piston stop and will it dent or scar the piston head ?
I never used one,every one says stuff a rope in through the spark plug hole because of damage to piston may result from using a metal piston stop.I took off the clutch on my 026 the way I did all my older Husqvarnas,I put the scrench on the nut and brought it up to compression and wacked it with the handle of a hammer.
The metal piston stop with no issues on several older Jonsered saws. No impact tools or getting carried away slamming it with a wrench.
I have also used rope on several saws with no issues there either, just be careful where the piston is when you feed the rope in to make sure it won't get caught in any of the ports.
I don't think I would recommend putting anything through the exhaust ports, there are just too many better ways that are safer.
I have plenty of old McCullochs that I just hold the flywheel with my hand and use the butterfly impact wrench on the flywheel nut or clutch. This is in spite of the fact the McCullochs all have a spot in the flywheel and cover where you can insert a pin to lock it in place.
By the way, plenty of those horizontal McCullochs have the spark plugs at an angle.
Mark
Pull Plug.
Pull starter handle to get top of piston above exhaust and transfers.
Insert rope.
Remove clutch.
Takes about 90 seconds. I'm sure there are folks who can do this much faster.
I will never again use a piston stop that screws into the spark plug hole. I know it's a tiny little piston, but I put a plastic screw in stop right through the crown of the piston on a MS180 simply trying to loosen the flywheel nut.
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