Author Topic: Dolmar 119  (Read 3236 times)

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Offline Bitburger

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Re: Dolmar 119
« Reply #30 on: October 14, 2013, 01:35:10 pm »
Adam,
you were right, I forgot to mention the 120 s (120 super) explicitly.  :-[ ::) Yeah, 120, then 120 super, and 120si. You can keep what I told about the difference from 120 to 120si, it also holds for 120 to 120 super. 120 super almost was already a 120si, same cc, same lightweight plastic tank, coil etc. Actually it had a primer pump so you can easily tell from pictures if 120 super or 120 si.

It always gets very confusing when dealing with 120, 120 s ("s" for "super") and 120 si ("si" for "super injection".
120super is also somewhat ungrateful since it was more or less a short period until they finally came up with the 120si-family.
It is sometimes hard to get 120super parts, the crank and cylinder e.g. was still different from 120si (and different from 119, 120) although the specs like 68 cc were already the same for 120s and 120si

And this is also an issue in Dolmar product policy, it is very confusing! They always came up with some kind of "super", exchanged names based on tiny modifications, and also attached the same name several times. E.g. besides the "120-complex" there is a Dolmar 116 (type CC, 1968), a Sachs-Dolmar 116 (mid 80ties, a some kind of stronger 114, new coil, new engine, plastic tank) and of course a Sachs-Dolmar 116si ( that came with 120si, and has nothing in common with the latter ones...) that makes 3 times "Dolmar 116" in 20 years...

Adam,
considering pics of the combustion chamber and piston,
does this help? These are some pics I have on hard drive, from refurbishing my 119 "H", actually what happened when the crank-seals failed (also see the spark plug) ... fortunately "Flexhone"-(derivative) and new piston rings were sufficient in this case











3000fps: Maybe I just made a typo, "4" vs "5", I was sitting outside while making that post:

Offline 3000 FPS

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Re: Dolmar 119
« Reply #31 on: October 14, 2013, 01:58:51 pm »
The 962 900 031 I can find all day long no problem.

But the 962 900 045 I have not found yet.
PP 505, 475, 445.

Offline Bitburger

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Re: Dolmar 119
« Reply #32 on: October 14, 2013, 02:07:22 pm »
OK, I just checked back with another parts list,  from 1987.
There it is indeed renamed or changed for

962 900 053

try this one as well...

Offline 3000 FPS

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Re: Dolmar 119
« Reply #33 on: October 14, 2013, 03:29:49 pm »
OK, I just checked back with another parts list,  from 1987.
There it is indeed renamed or changed for

962 900 053

try this one as well...

Ok that is what I was wondering about.  Thanks.
PP 505, 475, 445.

Offline adam32

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Re: Dolmar 119
« Reply #34 on: October 15, 2013, 09:39:30 am »
Adam,
you were right, I forgot to mention the 120 s (120 super) explicitly.  :-[ ::) Yeah, 120, then 120 super, and 120si. You can keep what I told about the difference from 120 to 120si, it also holds for 120 to 120 super. 120 super almost was already a 120si, same cc, same lightweight plastic tank, coil etc. Actually it had a primer pump so you can easily tell from pictures if 120 super or 120 si.

It always gets very confusing when dealing with 120, 120 s ("s" for "super") and 120 si ("si" for "super injection".
120super is also somewhat ungrateful since it was more or less a short period until they finally came up with the 120si-family.
It is sometimes hard to get 120super parts, the crank and cylinder e.g. was still different from 120si (and different from 119, 120) although the specs like 68 cc were already the same for 120s and 120si

And this is also an issue in Dolmar product policy, it is very confusing! They always came up with some kind of "super", exchanged names based on tiny modifications, and also attached the same name several times. E.g. besides the "120-complex" there is a Dolmar 116 (type CC, 1968), a Sachs-Dolmar 116 (mid 80ties, a some kind of stronger 114, new coil, new engine, plastic tank) and of course a Sachs-Dolmar 116si ( that came with 120si, and has nothing in common with the latter ones...) that makes 3 times "Dolmar 116" in 20 years...

Adam,
considering pics of the combustion chamber and piston,
does this help? These are some pics I have on hard drive, from refurbishing my 119 "H", actually what happened when the crank-seals failed (also see the spark plug) ... fortunately "Flexhone"-(derivative) and new piston rings were sufficient in this case











3000fps: Maybe I just made a typo, "4" vs "5", I was sitting outside while making that post:

Great pics! Thank you! The combustion chamber is the same as ours, very odd shaped. I can't see the pins on the piston tho, are they are on exhaust or intake side?

Offline Bitburger

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Re: Dolmar 119
« Reply #35 on: October 15, 2013, 10:15:51 am »
There are two pins on the intake side.

Offline adam32

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Re: Dolmar 119
« Reply #36 on: October 15, 2013, 10:46:17 am »
There are two pins on the intake side.

So strange, ours are on the exhaust side. The arrow is even pointing out the exhaust.

Offline 660magnum

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Re: Dolmar 119
« Reply #37 on: October 15, 2013, 11:35:58 am »
I've seen German saws with the arrow pointing towards the intake with the initials "Ei" at the arrow. "Ei" is for einlass which is intake in German.

The main point to look for is that the ring end gaps cannot cross a port. So your pins should never cross a port!

If a end gap gets caught in a port it will be bad news.

You had better take a better look at your chainsaw?
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
Be all that you can be . . .

Offline Bitburger

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Re: Dolmar 119
« Reply #38 on: October 15, 2013, 11:50:40 am »
Wow! Strange!

Once in my life I have witnessed a Dolmar 114, who also had the pin in next to exhaust, arrow to the front as well.

They changed that pretty soon after having had issues, my saw was from 1978 and therefore one of the very first ones.

So, obviously 119 was affected too. I exchanged the piston for that reason, honestly.

Pins near intake is always more save, the distance to the ports is slightly larger!

Offline adam32

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Re: Dolmar 119
« Reply #39 on: October 15, 2013, 01:11:27 pm »
I'll take it back apart before he runs it again and double check it. It was one of the very first if not the first 119 on the West Coast.

 

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