Author Topic: FREE PORTING PISTON Dolmar 111 & 115 family  (Read 2295 times)

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Offline brokenbudget

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Re: FREE PORTING PISTON
« Reply #10 on: April 16, 2013, 06:30:56 am »
i've ran a couple few of the 115's, but never had to go into one. and they do feel like they have a bit more zip. never paid any attention as to why. just thought they were a good dolly that ran well for it's size.
when I grow up, i wanna be an adult.

Offline 660magnum

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Re: FREE PORTING PISTON
« Reply #11 on: April 16, 2013, 07:56:09 am »
People reading this and trying to get The Dolmars sorted out . . . .

This family of chainsaws is the Dolmar and some times Makita 109, 110, 111, & 115. They all had a common crank shaft and crankcase.
The 109 & 110 had a 40mm bore 43cc and the 111 & 115 had a 44mm bore 52cc. They all had the same crankshaft. The 110 and 115 were supposedly closed port and the 109 and 111 were open port. It appears that the 111i was the most popular of all these? Later renditions became the 520 and also there was a 45mm bore 54cc 540 orphan that existed at the end. My open port 111i had a Kolbenschmidt cylinder and I have four closed port cylinders and they are all Mahle. Also there were later versions made as the PS43 & PS52 that had aluminum rather than magnesium crankcases as non pro price point chainsaws.

These chainsaws were made from the mid 80's until somewhere around 2004 or for close to 20 years. Most are now 15 yrs old or older. So, keep in mind that some one with a pile of old chainsaws may have mixed and matched some parts here and there and you may very well have a Frankensaw odd ball?

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Offline brokenbudget

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Re: FREE PORTING PISTON
« Reply #12 on: April 16, 2013, 08:21:31 am »
bought my 111i new on 1991. the yguy was clearing out the sachs-dolmar stuff to make room for jonny and echo. if i remember corectly, i paid just under 400bux plus tax. :) was 15 going on 16, and was cutting wood for money. friends neighbor had a 123 and let me run it for a while and i was impressed. so went to the dealer to have a looksee. no idea why i ended up with the 111, but i ain't complaining what so ever. that girl and i cut alot of firewood over the years. even had a couple other friends go and buy them before that guy sold out. good saws.
now i'll have to go snap some pics. she is rather photegenic :)
when I grow up, i wanna be an adult.

Offline 660magnum

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Re: FREE PORTING PISTON
« Reply #13 on: April 16, 2013, 09:38:28 am »
Here is my Dolmar 111i from 1997. It was a freebe given to me by the local chainsaw dealer as it had a blown high speed nozzle check valve and had gone through a flood but the water was just up on it a couple inches. Due to all the oil on the lower part of the saw, there was no actual water damage. One of those situations where it started right up at home but didn't actually run correctly.



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Offline 660magnum

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Re: FREE PORTING PISTON
« Reply #14 on: April 16, 2013, 09:57:44 am »
The closed port cylinder I used on this chainsaw came from a Brison 6.4 opposed twin model airplane engine. It is 104cc. The engine had been run on Amsoil oil at 100 to one. The right cylinder looked as though it had been straight gassed. I got it cheep and the guy told me he had put a new cylinder and piston on the right side. After pulling that cylinder, it appears that the new cylinder was only new to him as it had been used quiet a bit. It may have originally come from a single 3.2cc Brison?

There were several companies that made Sachs Dolmar based model airplane engines of all sizes back in the late 80's up through about 2005. They used the Dolmar cylinder and piston assemblies. These model airplane engines were all different combinations of cut down Dolmar cranks and cases to custom bottom ends.

I also have a never run Brison 3.2 single cylinder model airplane engine from 2005. The 3.2 single from Brison was probably the most popular of these.
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Offline brokenbudget

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Re: FREE PORTING PISTON
« Reply #15 on: April 16, 2013, 11:49:21 am »
here's mine. older version.
and that meens it's faster! :D




when I grow up, i wanna be an adult.

Offline 3000 FPS

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Re: FREE PORTING PISTON
« Reply #16 on: April 16, 2013, 12:34:59 pm »
660Magnum nice pictures.    It seems to me that those engines from R/C  planes is another whole world of engine modifying that some of the chain saw guys never even thought of.


Brokenbudget nice 111i.    I really like the ones I have which are older like yours.    Right now they are all sitting up in Wyoming.
PP 505, 475, 445.

Offline 660magnum

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Re: FREE PORTING PISTON
« Reply #17 on: April 16, 2013, 02:52:31 pm »
Budget, very nice 111. They stay nicer as a one owner saw.

Mine had two years of shop grime on it from setting under a work bench in addition to never having been wiped off by the original owner.

It cleaned up OK but then I dropped and cut up 6 pines and got it all dirty again.
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That knowledge can live after us... and that "Pays It Forward".
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Offline brokenbudget

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Re: FREE PORTING PISTON
« Reply #18 on: April 16, 2013, 03:09:46 pm »
thanks! it's the only saw i "baby" :) must be the 'first new saw for me' symdrome. it's never really been banged around. it wa always the one that rode in the back of the cab in the truck, or had it's special little space in the box or trailer cleared and kept stuff away from hitting it.
i would like to get a new sticker for the clutch cover.
when I grow up, i wanna be an adult.

Offline 3000 FPS

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Re: FREE PORTING PISTON
« Reply #19 on: April 16, 2013, 03:16:20 pm »
You find one of those stickers please let me know, I would like a couple myself.
PP 505, 475, 445.

 

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