Author Topic: Dolmar 116si (Read 1399 times)

Cut4fun . · « **on:** August 25, 2013, 09:30:08 am »

Guy I know through internet only sent me a video of his dolmar 116si cutting up some firewood. He lives maybe 40mins south of me and is a member here but dont have a youtube account.

http://youtu.be/n_LJppkYWiQ

660magnum · « **Reply #1 on:** August 25, 2013, 09:51:26 am »

A 116Si and a Dolmar 6000i use the same piston and cylinder but the brake is a little different

The 116Si is 60cc and the 120Si is the same chainsaw with 68cc

Cut4fun . · « **Reply #2 on:** August 25, 2013, 10:02:17 am »

Jim is the 116si as heavy as that 6000i?

660magnum · « **Reply #3 on:** August 25, 2013, 11:23:38 am »

Maybe slightly more so?

The main difference with the 116S is there is a pressed on worm for the oil pump drive so it has a full time oil pump instead of one that only runs when the chain is spinning like on the 6000.

I think this was more of a EPA thing than of any real usefulness.

The oil pumps themselves on all the Dolmars in the last 20 years that you and I would be using are the same design. from the 111 to the 7900.

The 111/115 also changed to part time oiler when the 6000/6800 came out in '97 and the 116S/120S was discontinued

In '99 they made the 111 the same closed port cylinder as a 115 and I think that was the end of the 115?

660magnum · « **Reply #4 on:** August 25, 2013, 11:49:05 am »

The 116S, 120S, 6000, & 6800 all had the same 36mm stroke as the Husky 365 Special and 372XP but the bores were smaller.

The closed ports on the Dolmars were of the old style upper and lower window design using a windowed piston. The lower transfers were not in the base flange area of the cylinder and crankcase. Some of the Stihls were this way. You cannot do as much porting on these as all the port dimensions, piston skirt width and lengths were all mathematically worked out to coincide with the port spacing on the cylinder. They ran pretty good they way they were.

LD1 · « **Reply #5 on:** August 25, 2013, 10:55:33 pm »

Thanks for taking the time to upload and posting that link for me.

Just a stock 116si, with a 16" bar, 3/8" full chisel 7-pin. Probably had a tankful through it before I shot this, so not a fresh out of the box sharpening. I like to run my rakers in the .045-.050 range, and thats about what these are. The wood was Ash, about 14-15" at the big end, tapering to 11-12" by the end of the vid. I am no racer, this isnt a special video or anything. Just the way I cut and run my saws everyday. I have a soft spot for the 116si and 120si.

660mag...you seem to know more about these old dolmars than I do. I have a few 116si's that are ported, and your right, wasnt much that could be done. Just a tad wider, and really just smoothing out casting lines. The few I did, I raised the ports just a tad too, to compensate for taking the base gasket out to get squish down to 0.020-0.025.

Thanks again for posting that for me Cut4fun. I really appreciate it.

660magnum · « **Reply #6 on:** August 26, 2013, 10:18:03 am »

The 116Si usually had a Kobelschmidt cylinder whereas the 120Si cylinder was a Mahle. But they were identical except for bore and the fins being slightly larger on the 120Si. The external fins varied on all these cylinders over the years. There were ones with and without fins under the exhaust ports and there were some with the fins removed to the left of the spark plug to allow room for the spark plug wire.

The piston cylinder sets for the 116S/120S were interchangeable but are no longer available. There is a guy that frequents this site that has some new old stock pistons for the 120S/6800 available.

Be careful comparing the 116/120 with the "S" versions as there were differences.

LD1 · « **Reply #7 on:** August 26, 2013, 03:37:12 pm »

Never ran anything but the SI's. I imagine the supers were good runners too, and would snag one in a heartbeat if the price was right. But the 116/120 non-S versions dont interest me.

I wouldnt mind having a 114 and a 119 to round out my collection, but dont see them that often. And I hardly ever use my 112 or 117. The 117 is quite strong, but its no 116SI. And honestly, the 112 reminds me of a 029, overweight and slow

My go-to saws are my 115i and 540 for trimming, and a pair of my 116si's for bucking. And I'll take my 6400/8400 along if I know I'm getting into some big wood. But dont use it unless I have to. Its easier to maintain 16" B&C's than a 24". I really do have a soft spot for the dolmars

LD1 · « **Reply #8 on:** August 26, 2013, 03:46:24 pm »

I forgot to mention that I love the sound of the dolmars. Especially the older ones, and even the smaller ones. The stihls and huskys are just too "high-pitched" for me. I like the deeper tones and throaty sound of the dolmar.

660magnum · « **Reply #9 on:** August 26, 2013, 05:36:09 pm »

Quote from: LD1 on August 26, 2013, 03:37:12 pm

My go-to saws are my 115i and 540 for trimming, and a pair of my 116si's for bucking. And I'll take my 6400/8400 along if I know I'm getting into some big wood. But dont use it unless I have to. Its easier to maintain 16" B&C's than a 24". I really do have a soft spot for the dolmars

Those are some good Dolmars to be going to. I have the 115i, 5105, 6800, & 7900 . . . That gets the job done.

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Author Topic: Dolmar 116si (Read 1399 times)

Cut4fun .

Dolmar 116si

660magnum

Re: Dolmar 116si video

Cut4fun .

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LD1

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LD1

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