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Chain Saw Collectors Vintage chainsaws and other air cooled gas engine saws, collecting and restoring.

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Mercury Disston DA 211 I'm working on, pics


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  #1  
Old 01-30-2018, 04:54:43 PM
mschreiber mschreiber is offline
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Default Mercury Disston DA 211 I'm working on, pics

da 211 i got many years back without magneto, transmission, bar and chain. With all the parts collected i'm finally putting together.





nos magneto from ebay like 15 years ago.


Seen here is new bar tightner threaded stock along with bent original 1. the bent 1 would turn so far pushing the bar out then because of it being bent the dog would miss the bar and just spin. I'm surprised that the dog only catches 1/2 the thickness of the bar? Because these are a marriage of parts, Anyone else note this on these saws?
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Old 01-30-2018, 05:01:12 PM
mschreiber mschreiber is offline
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Default Re: Mercury Disston DA 211 I'm working on, pics

Seen here is the new bar tensioner installed. please note reinforcing piece indicated by the pencil. this piece and the 7/16" bolt ain't shown it the parts book. parts book shows just 3/8"diameter stud used there… its looks original and well done. Can anyone add and information about this? note how thick that sprocket is?


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Old 01-30-2018, 05:07:29 PM
mschreiber mschreiber is offline
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Default Re: Mercury Disston DA 211 I'm working on, pics

like new 4' bar with chain… manufacture unknown. the chain is "bw" 9/16 pitch, its like new too. i believe with the messed up bar adjustment bolt this set-up hardly got used. this bar and chain came with the transmission.






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Old 01-30-2018, 09:39:09 PM
Antiquebriggsguy Antiquebriggsguy is offline
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Default Re: Mercury Disston DA 211 I'm working on, pics

Hello, sorry but I don't have an answer to your question. I just wanted to thank you for saving another piece of old machinery even if it did take over 15 years. Good luck with it and keep us posted.
PS your pencil makes me think where's Waldo.
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Old 02-01-2018, 12:57:58 PM
Big Chip Big Chip is offline
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Default Re: Mercury Disston DA 211 I'm working on, pics

Ha Ha...another great project....I love those saws..
Good job finding those parts in that condition...
The transmission should have 3 bolts coming through from inside...It is easy to do and the input and output shaft seals can be replaced at same time...I used grade eight 3/8 NF hex head bolts...They just lightly press into a hex shaped pocket on the inside...Also remember there are rubber O rings on those bolts to stop oil from leaking past..A must if you are going to run the saw..Hope these pics help a bit...
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Old 02-01-2018, 01:23:11 PM
Big Chip Big Chip is offline
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Default Re: Mercury Disston DA 211 I'm working on, pics

I personally would not run it without the 3rd bolt and that little plate at the end of the pencil...especially with the longer bar..
Seal the cork float in the carburetor with nail polish if it is dry...
I also made a new bar adjuster block with a bit deeper engagement..
Dave
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Old 02-01-2018, 02:02:36 PM
mschreiber mschreiber is offline
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Default Re: Mercury Disston DA 211 I'm working on, pics

Quote:
Originally Posted by Big Chip View Post
I personally would not run it without the 3rd bolt and that little plate at the end of the pencil...especially with the longer bar..
Seal the cork float in the carburetor with nail polish if it is dry...
I also made a new bar adjuster block with a bit deeper engagement..
Dave
As seen in the pencil pic there is the 7/16 fine thread bolt that fastens from the outside. (see red cover) My 3rd center bolt is 7/16" fine thread… I don't plan on running it without it. It also secures the reinforcement pawl the pencil is indicating. My other 2 blade bolts are are not bolts at all but 3/8" STUDS! (parts book shows studs) I don't see ur reinforcement pawl in ur photos???? My question originally is i don't see the reinforcement pawl held in place with the 7/16" bolt in the parts book????

In my transmissions case, the reinforcement pawl is the same thickness as my bar and creates a level plane that the cover bolts to. Did my reinforcement pawl along with the 7/16" come with a bar conversion????

RE: adjuster block u made! Then u too noted that the tang only catches 1/2 the blade thickness??? I been told by local woodcutter that the adjuster block is not made to take the load of holding the bar, but to only move it out. I kinda see now why that block is only 1/2 bar thickness if its meant for light duty. He said on modern saws the adjuster is really cheesy for a purpose.

You got da211 parts books?

thank u 4 any more help.
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Old 02-01-2018, 02:52:57 PM
Big Chip Big Chip is offline
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Default Re: Mercury Disston DA 211 I'm working on, pics

Someone must have broke the rear stud and tapped the hole for 7/16...You will probably find the hex off the end of stud in the case if you take it apart....
They are called studs but honest..they are just bolts.....A stud using a 9/16 hex head to hold it in place and stop it from turning if you will.......You are correct about the adjusting block...It does not hold bar in position..I just made it a bit deeper cause I could and there was room... the 84" bar in the picture is 3/8" thick so I had plenty of room to make it deeper..I had that bar custom made a few years ago...It has a 3/4 pitch .122 ga. chain on it...I do not have a parts book or manual....Does your book show the O rings..?
The little plate on the rear stud is on all of my cases and is very important to help keep the bar properly located...IMO

Dave

---------- Post added at 01:52:57 PM ---------- Previous post was at 01:33:13 PM ----------

Ha, it is all coming back to me....The block that the adjuster screw goes through and the "reinforcing pawl" as we are calling it, are supposed to be all 1 piece and it is held in place with a 5/16 bolt from the inside of case...and must fit snugly in the machined slot...I had to make one of those as well for the 84" bar because it is so thick...(and heavy lol)..... You are also correct that that pawl is very close to the thickness of the bar..If you look closely at the pictures you can see it...
Your parts book should show that part..
Dave
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Old 02-01-2018, 03:04:51 PM
Big Chip Big Chip is offline
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Default Re: Mercury Disston DA 211 I'm working on, pics

Here is another pic
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Old 02-01-2018, 03:37:53 PM
mschreiber mschreiber is offline
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Default Re: Mercury Disston DA 211 I'm working on, pics

i got 2 of number #15 studs and the 7/16" bolt for the 3rd one. the parts book doesn't show the reinforcement pawl at all, and maybe the tennisoner pawl its barely shown on the other end of #18.




Last edited by mschreiber; 02-02-2018 at 12:07:00 PM.
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