Matt Hogden
ArboristSite Guru
Yes / No?
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Do we generally hate Clamshells?
- Thread starter Matt Hogden
- Start date
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dougand3
Addicted to ArboristSite
No. They can be fine saws. A 42cc Poulan can be a nice limbing saw. I won't pay much for a clamshell - don't care if it says Farm Boss and I should start drooling.
Chris-PA
Where the Wild Things Are
Other than the difficulty of increasing compression while modifying (not a design consideration), clamshells are the superior design. Some manfucturers have done a very poor job implementing them, which has given them a bad reputation for difficulty.
They ok, got a few myself.
Steve
Steve
Matt Hogden
ArboristSite Guru
Yeah i have a MS181, MS250 and 023 In clamshell. They are all ok i guess. Not powerhouses though.
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Chris-PA
Where the Wild Things Are
The power output has nothing to do with clamshell construction.
Matt Hogden
ArboristSite Guru
I realise this mate. Just stating that they are not super powerfull. Cheers[emoji6]
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Yes I like clamshells, hate to split a case to change main bearings and seals...
McCulloch made a few clamshells that make good power. Believe Porsche, VW, Subaru and many aircraft engines are plenty powerful and reliable.
Don’t believe there is anything inherently superior about a case split on the axis or across the axis. But I’m listening.
Ron
Don’t believe there is anything inherently superior about a case split on the axis or across the axis. But I’m listening.
Ron
Personally, I hate the MS271/291.
It's a pain to keep crap from falling into the sealer while installing the cylinder onto the clamshell.
It's a pain to keep crap from falling into the sealer while installing the cylinder onto the clamshell.
Clamshell saws generally have less power because they are usually homeowner saws and not professional saws. They are generally cheaper as well..
Chris-PA
Where the Wild Things Are
Less gasket/seal area, much easier bearing & seal replacement. It's a compact, self contained engine. The way the cylinder and cap castings support the crank should be very strong.
Bobby Kirbos
Scrounger of Cellulose Based BTUs
My Poulan clamshell has at least 5 gallons of fuel through it and it still cranks. I don't think there is any reason that they should be avoided. There may be limitations to the design, but like anything else, if the machine is designed within those limitations, I see no reason to dismiss the design.
Khntr85
Addicted to ArboristSite
Also I have pro saws, and I have a ms250 my dad got me maybe 6-7 years ago....I have used/abused it and I still like using it.....I think the ms250 is very underrated....
I am not trying to pick a side, just saying the clamshells have kept many a family warm and presents Under the tree...
I am not trying to pick a side, just saying the clamshells have kept many a family warm and presents Under the tree...
cus_deluxe
Commie Satan turd
Pretty much all snowmobile engines are clamshell type....seen some badass snowmobiles too. As said above, clamshells in the saw world are usually poorly implemented and used on crappy saws. Mac 10 series saws are pretty sweet tho...
After reassembling one I believe my place in Hades is reserved.Yes / No?
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cuinrearview
Red saw lover
After my divorce last year I don't hate anything, least of all clamshells. I have much more disdain for people debating what a clamshell saw is. If the saw is split horizontally it is, in my opinion, a shell.
