Chainsaw Repair

Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => Dolmar Makita => Topic started by: Miller-Thinner2 on December 13, 2013, 05:48:30 pm


Title: sach dolmar 143 chain brake help
Post by: Miller-Thinner2 on December 13, 2013, 05:48:30 pm
Today I got a sach dolmar 143 on a  trade and it didn't have the brake handle on it but come with it. It doesn't look broke but just unhooked. I think im missing some parts for it to. I didn't take it apart yet but snapped a couple pics If someone could guide me to a assembly diagram id really appreciate it.

Or if you had pics of your own  I could look at. Also can you tell me from my pics what im missing if there is no parts diagram available. 

OK i will post pics later it says file to large and im not that great on computers lol
 
Title: Re: sach dolmar 143 chain brake help
Post by: Miller-Thinner2 on December 13, 2013, 06:26:10 pm
OK I got some photos on here let me know if I need any more pics. I see it has no band there must some sort of braking band?

(http://i934.photobucket.com/albums/ad189/Contrand81/20131213_182022.jpg) (http://s934.photobucket.com/user/Contrand81/media/20131213_182022.jpg.html)
(http://i934.photobucket.com/albums/ad189/Contrand81/20131213_182046.jpg) (http://s934.photobucket.com/user/Contrand81/media/20131213_182046.jpg.html)
(http://i934.photobucket.com/albums/ad189/Contrand81/20131213_182100.jpg) (http://s934.photobucket.com/user/Contrand81/media/20131213_182100.jpg.html)
(http://i934.photobucket.com/albums/ad189/Contrand81/20131213_182138.jpg) (http://s934.photobucket.com/user/Contrand81/media/20131213_182138.jpg.html)
Title: Re: sach dolmar 143 chain brake help
Post by: Cut4fun . on December 13, 2013, 06:37:21 pm
It's worth the $$ they were asking.  Ask chainsman1. I think he may have built a 143 more some kind of racing.
Title: Re: sach dolmar 143 chain brake help
Post by: 660magnum on December 13, 2013, 08:41:46 pm
It had a brake at one time parts of which are still there but it was not a current style inertia brake.

Take inventory with the IPL?
Title: Re: sach dolmar 143 chain brake help
Post by: Miller-Thinner2 on December 13, 2013, 10:54:37 pm
Just Put a carb kit in it and a new plug. It runs like a new one now. 


A new one with no chain brake lol
Title: Re: sach dolmar 143 chain brake help
Post by: Cut4fun . on December 14, 2013, 09:43:48 am
dolmar 143 IPL  http://s30387.gridserver.com/partsDiagrams/Dolmar%20133S%20and%20143.pdf

You just needing the brake band?
Title: Re: sach dolmar 143 chain brake help
Post by: Cut4fun . on December 14, 2013, 09:47:19 am
      Chainbrake brake band with c-clip and self tapping screw. Dolmar part numbers: 123213051, 123 213 051, 907204162, 907 204 162
     
      Fits Dolmar 123 133 133s 143 and others

(http://cdn.shopify.com/s/files/1/0032/0472/products/dolmarbandkit_1_medium.jpg?v=1359227681)

Title: Re: sach dolmar 143 chain brake help
Post by: Miller-Thinner2 on December 14, 2013, 10:17:30 pm
Looks like I just need the band. I printed off a parts diagram and I am going to check it out better tomorrow to see what I need for sure
Title: Re: sach dolmar 143 chain brake help
Post by: Miller-Thinner2 on December 17, 2013, 06:09:34 pm
anybody want to give me any secrets on how to mod this saw up a little? And what the little brass plug on the side of the carb when I put the carb kit in it I had it out and it has a little ball in it. I could pics if I had to lol
Title: Re: sach dolmar 143 chain brake help
Post by: Cut4fun . on December 17, 2013, 06:13:19 pm
governor type thing.  put a bb in them to defeat it from flooding the saw out if over the gov rpm range limit.  ;)
Title: Re: sach dolmar 143 chain brake help
Post by: Miller-Thinner2 on December 17, 2013, 06:16:56 pm
so I should leave it alone? lol
Title: Re: sach dolmar 143 chain brake help
Post by: Cut4fun on December 17, 2013, 07:28:22 pm
Yes unless you want to remove it then it will rev limit your saw. If modding you want the passage blocked off.
Title: Re: sach dolmar 143 chain brake help
Post by: chainsman1 on January 01, 2014, 07:40:48 pm
It's worth the $$ they were asking.  Ask chainsman1. I think he may have built a 143 more some kind of racing.

Those 143 could be run a lot faster,but parts are very hard to find.the cylinder platings are not very durable.so every saw i found were scored.the one i own have been built a long time ago by somebody else.the fingers were too deep and the cylinder **** up in the bore. It still runs but i parked it.i dont want it to grenade
Title: Re: sach dolmar 143 chain brake help
Post by: Bitburger on January 11, 2014, 06:09:41 pm
this mechanical rpm limit is for protecting the enginge when at full throttle without any load.
Maximum power while cutting should be at a much lower rpm, like 9000 rpm or so !

Just "fixing" that valve will not affect the power while cutting! Excpet you will do some porting job, that ends up at a higher rpm during normal opperation.

The valve also does not alow you anymore to do carb adjustment according to max rpm, just as every rpm-limited saw, you have to do the finetuning while cutting in wood.

As I wrote in your other thread, the 143 is the last saw you want to tune above factory specs! Not very durable even in its original setup!