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Cylinder, Hose Nipple, how to install/replace ?

Bitburger

Bitburger

ArboristSite Member
Joined
Mar 26, 2012
Messages
75
Location
germany
Dear all,

a happy and healthy 2021 to all of you.
Used the quiet days to dig out and re-inspect a few things and found a "surprise" on my Dolmar 166-Cylinder, that I missed for many years, until now!

I might have a chance to perform a back and forth- "transplant" with another saw, however, does anybody know how the "hose nipple" is installed/exchanged ?
And how the original part actually looks like ? Guess that it is just a cylindrical fitting and the dealer just "hammered" it in, when he installed a new cylinder ?

The 166 is just the current example, I think they are more saw types out there, where the crankcase pressure is led through a hose ?

Best Chris

Sans titre 2.jpg
 
djones

djones

Addicted to ArboristSite
Joined
Nov 25, 2010
Messages
4,272
Location
uptown Porter Corners, NY
Dear all,

a happy and healthy 2021 to all of you.
Used the quiet days to dig out and re-inspect a few things and found a "surprise" on my Dolmar 166-Cylinder, that I missed for many years, until now!

I might have a chance to perform a back and forth- "transplant" with another saw, however, does anybody know how the "hose nipple" is installed/exchanged ?
And how the original part actually looks like ? Guess that it is just a cylindrical fitting and the dealer just "hammered" it in, when he installed a new cylinder ?

The 166 is just the current example, I think they are more saw types out there, where the crankcase pressure is led through a hose ?

Best Chris

View attachment 881199
I'm not familiar with Dolmar saws but others that I have worked on were pressed in. If it needs to be removed you could cut it off flush with the flange edge and then drill out the remainder and install the new one with a coating of locktite on the insert end. What I am familiar with is Bitburger beer and the Bitburg Hotel even the Bitburger Brewery, having spent 3 years at Spanghdalem. Good luck with your saw.
DSCN0127.JPG
 
BangBang77

BangBang77

The chair is against the wall...
Joined
Mar 8, 2018
Messages
383
Location
Oklahoma
Bitburger beer is my favorite beer. I've spent quite a bit of time working in Germany and found the Bitburger to be one of the best of the European beers.
 
pioneerguy600

pioneerguy600

Lost in Space
Staff member
Joined
Dec 23, 2007
Messages
40,651
Location
N.S. Canada
Dear all,

a happy and healthy 2021 to all of you.
Used the quiet days to dig out and re-inspect a few things and found a "surprise" on my Dolmar 166-Cylinder, that I missed for many years, until now!

I might have a chance to perform a back and forth- "transplant" with another saw, however, does anybody know how the "hose nipple" is installed/exchanged ?
And how the original part actually looks like ? Guess that it is just a cylindrical fitting and the dealer just "hammered" it in, when he installed a new cylinder ?

The 166 is just the current example, I think they are more saw types out there, where the crankcase pressure is led through a hose ?

Best Chris

View attachment 881199
The fitting comes with the cylinder from the factory, its not meant to be removed and switched over when another cylinder is a replacement. They are a tight press fit.
 

Bitburger

ArboristSite Member
Joined
Mar 26, 2012
Messages
75
Location
germany
that would be quite an issue. However, the cylinders were shipped without that pin, described separately within the IPL.
This is why I hope to find an alternative.
Does anyone knows the dimensions from that pin ?
And from the piston bolt as well ?

all the best

Chris
 

cookies

ArboristSite Operative
Joined
Nov 26, 2020
Messages
196
Location
Crawfordville
have you tried using a metric drill bit to measure the hole? a roll pin punch would work to install but I would consider boiling/baking the cylinder to ease instal and as mentioned use highheat rated loktite
 

Bitburger

ArboristSite Member
Joined
Mar 26, 2012
Messages
75
Location
germany
I will measure the hole. Heating/shrinking is a good idea. Currently, I cannot even find suitable nipples. They need to be quite short, however, with a tubular end on one side.
Strange. As they were used in many carbs, cylinders and so on, I cannot believe that they were so special.

As one part of the experiment includes a working Dolmar 166-cylinder (however, without nipple), I must not mess it up.


@djones: thanks for showing the lovely picture. Yes, it is one of the most common beers in west germany,
also one of the "big brands" with lots of money and advertisement. Was chosen as a nickname to get
registered in my first internet-discussion board about 20 years ago...and just kept
 
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