Antique Engines and Old Iron

[Home] - [HELP] - [Forums] - [Library] - [Photo Gallery] - [Groups] - [Classified Ads] - [Subscribe] - [Links] - [Books] - [Sponsors] -

Go Back   SmokStak > SmokStak® Antique Engine Community > Small Air Cooled Gasoline Engines > Chain Saw Collectors
Forgot Password? Join Us!

Notices

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

Chain Saw Collectors

Mercury DA 211 Progress, 4' Bar


this thread has 6 replies and has been viewed 972 times

Reply
 
Thread Tools Display Modes
  #1  
Old 04-20-2018, 02:18:48 PM
mschreiber mschreiber is offline
Registered-III
 
Join Date: Jan 2007
Location: crown point ind. or plymouth ma.
Posts: 1,645
Thanks: 2,892
Thanked 1,162 Times in 556 Posts
Default Mercury DA 211 Progress, 4' Bar

It runs on both cylinders, leaks gear oil and won't idle down, seems to have a lot crackling going on. this is my first 2 stroke ever. but after 25 years it runs.

video, www.youtube.com/watch?v=GzX-qzChPwI&t
Attached Thumbnails
Click image for larger version

Name:	DSC01857.jpg
Views:	88
Size:	197.8 KB
ID:	308683   Click image for larger version

Name:	DSC01866.jpg
Views:	88
Size:	169.5 KB
ID:	308684   Click image for larger version

Name:	DSC01868.jpg
Views:	84
Size:	197.5 KB
ID:	308685   Click image for larger version

Name:	DSC01867.jpg
Views:	82
Size:	221.4 KB
ID:	308686  
Reply With Quote
Sponsored Links
  #2  
Old 04-20-2018, 04:32:56 PM
gdstew gdstew is offline
Registered-II
 
Join Date: Jan 2015
Location: New Philadelphia, Ohio, USA
Posts: 821
Thanks: 213
Thanked 415 Times in 293 Posts
Default Re: Mercury DA 211 Progress, 4' Bar

The DA-211 saw was regarded to be one of the finest "big" saws of it's day and when correct, it will idle to a low "thumpity-thump". Most of the time, if your coil has a crack in it, it will give problems. I had over a dozen of these saws and just about every one of them took new coils

The gearbox needs #140 gear lube, 85-140 will leak out. The only #140 I found was a 5 gallon bucket, no quarts!

Now, at 62 pounds, that saw was considered a lightweight one man saw. A 2-man saw had a throttle on the right, maybe a clutch on the left, and had to have a helper on the end of the bar. Your 1-man saw has a throttle that can be operated by either hand and has an extra loop handle in front of the powerhead. 1 man can pick up and operate that saw, by himself! So now you know why lumberjacks were so big.
Reply With Quote
The Following User Says Thank You to gdstew For This Post:
  #3  
Old 04-20-2018, 08:37:45 PM
coyote62ny coyote62ny is offline
Registered-II
 
Join Date: Jan 2011
Location: sherburne ny usa
Posts: 698
Thanks: 0
Thanked 166 Times in 145 Posts
Default Re: Mercury DA 211 Progress, 4' Bar

The low speed is way too lean these carbs the low speed works posit of a normal carb turning the low speed in riches the mixture turning it out leans the mixture don't break those trees or your done they are nla. Don't run a da211 if you think it can run on a mix other than 8 inches to the gallon I have rebuilt several of these saws if you took the mag off you messed up big time the timing is critical on these saws I could talk you through it on the phone but I ain't typing it out here if you want to call me my number is 607 373 8146
Reply With Quote
The Following User Says Thank You to coyote62ny For This Post:
  #4  
Old 04-20-2018, 10:33:25 PM
mschreiber mschreiber is offline
Registered-III
 
Join Date: Jan 2007
Location: crown point ind. or plymouth ma.
Posts: 1,645
Thanks: 2,892
Thanked 1,162 Times in 556 Posts
Default Re: Mercury DA 211 Progress, 4' Bar

Dean, we talked couple years back and i took notes. i had come across a nos mag in bendix box and u gave me the real deal about timing then. At this time it don't have those after market coils from saturn surplus in it. Its got the nos coils in it that have 1" crak each and i epoxied them. I don't think i got a mag problem.... i never took the carb off, but only removed the bowl cover to get float out to redkote. It might be on the heavy side now????? thanks all.

are u guys running unleaded? the manual reads "donot use white gas which i thought was unleaded gas back in the day? is white gas the same as modern day unleaded?
Reply With Quote
  #5  
Old 04-21-2018, 11:38:59 AM
mschreiber mschreiber is offline
Registered-III
 
Join Date: Jan 2007
Location: crown point ind. or plymouth ma.
Posts: 1,645
Thanks: 2,892
Thanked 1,162 Times in 556 Posts
Default Re: Mercury DA 211 Progress, 4' Bar

New plugs installed yesterday and about 60 minutes running time, no wood cutting but about 30 minutes 1/2 throttle and 30 mintues at lowest idle i could get and it still run. The 1 on left is from no.1 cylinder with slight wet showing. and is the cylinder with the most crackling coming from it. Its the 1 that seems to have trouble coming up strong compare to the exhaust pressure coming out the mufflers. Now maybe i think somewhat of a breakdown with the ignition on no.1. This is about 30:1 mix with modern 2 cycle oil. thanks 4 comments
Attached Thumbnails
Click image for larger version

Name:	DSC01870.jpg
Views:	43
Size:	112.1 KB
ID:	308801  
Reply With Quote
  #6  
Old 05-25-2018, 02:44:27 PM
Andrew Mackey Andrew Mackey is offline
Sponsor
 
Join Date: Nov 2004
Location: Rockaway, New Jersey USA
Posts: 13,394
Thanks: 1,886
Thanked 6,182 Times in 3,997 Posts
Exclamation Re: Mercury DA 211 Progress, 4' Bar

Both plugs are carbon fouled - mixture set too rich or ignition faults. Carbon on the plugs will lead to mis-fire. 30:1 oil mix seems too lean on oil. What do operating instructions on engine label read? Also, modern 2 stroke LUBES are too thin. You need either SAE 30 non-detergent or TCW-3 OIL for these engines.

White gas is similar to Colemans fuel. NFG for these engines, as octane rating is too low (in the area of 54). Unleaded regular is about 89 octane. you MUST be sure to use the proper oil/fuel ratio, as the alky in E-10 unleaded will dilute the oil. in any case, I would run high test fuel in the engine. Pump supposed E-10 has been found to have as much as 27% alcohol in it , not good for a 2 stroke engine. high test has a better control of additives.

I would go to a NAPA or good auto parts store, and buy one of those NEON spark testers. Place in line with the high tension leads and the plugs and watch the glow. Intermittent or changing brightness of the bulb lighting means a bad coil or other ignition problem (dirty points or bad condenser).

One other thing to check - is your muffler carbonneed up? if packed with carbon, the cylinders won't breathe properly, and it can lead to the problems you are having. Back in the day, we used to take a good hot propane torch and burn the carbon out. Lots of bright orange sparks! not good for the paint though.

What spark plugs are you using and gap? The original plugs are champion J 6-J, gapped at .025". Points gap .015". If you are not working the saw, you probably can get away with champion J8 s, a hotter plug. DO NOT use resister plugs, they will strain the high tension sides of the coils, leading to coil failure due to insulation breakdown from excessive resistance.
Reply With Quote
  #7  
Old 06-26-2018, 07:41:54 AM
mschreiber mschreiber is offline
Registered-III
 
Join Date: Jan 2007
Location: crown point ind. or plymouth ma.
Posts: 1,645
Thanks: 2,892
Thanked 1,162 Times in 556 Posts
Default Re: Mercury DA 211 Progress, 4' Bar

Checked everything u mentioned and determined i got a heavy float i think because i redkoted it. With this carb the needle/seat is in the bottom, thus too much gas. After taking the carb off along with the reeds/valves there was raw fuel setting in the rod journal valleys.
Its back on the back burner now, gaskets are gonna be tough to remake.
Reply With Quote
Reply

Bookmarks


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

F o r u m Jump

Similar Threads Chosen at Random
Thread Thread Starter F o r u m Replies Last Post
Midget Mercury Jamesk815 Antique Autos and Trucks 3 01-20-2016 03:15:17 PM
mercury kb6 info newway1978 Chain Saw Collectors 11 08-27-2015 02:08:49 PM
Mercury KH-7 value? SteamfanMN Antique Marine Engines and Outboard Motors 0 04-13-2015 08:09:45 PM
'89 Mercury 5 HP value? Boogity Antique Marine Engines and Outboard Motors 0 05-05-2013 04:54:37 PM


Use "Ctrl" mouse wheel to change screen size.
All times are GMT -4. The time now is 06:55:50 PM.

Smokstak and Enginads site search!


All use is subject to our TERMS OF SERVICE
SMOKSTAK® is a Registered Trade Mark - A Community of Antique Engine Enthusiasts
Copyright © 2000 - 2016 by Harry Matthews P.O. Box 5612 - Sarasota, FL 34277