Not That It Is Any Big Deal.......But......

[rahtreelimbs]

For those that own a Dolmar 7900 a little heads up.

I was cleaning up my 7900 the other night and lost the retaining ring for the clutch/sprocket. I found that a clip from a Stihl 026-066 fits.....good replacement.

Just another little tidbit.............!!!

 

[Chris J.]

Better check it frequently.

The Dolmar might decide to spit out a Stihl part.

 

[Al Smith]

Imagine that

Why,I am astounded,Stihl actually used a standard part?

 

[glens]

When you set the standards, any part you use is the "standard" part, right?&nbsp; :-<tt></tt>)

 

[geofore]

Standard

Very good Glens. Rich, you're spending way too much time with your saws, fun ain't it? I'm going to spend a bit of time with mine tonight, I can hear them calling me to the garage for some quality time.

 

[Al Smith]

Standard,non standard

First of all.I own several Stihls,good saws,but_____why do they make a different air filter for each one.Why a different drive assembly,a different oil punp.Perhaps,because they can.This is the mind set of the people that make them.I have stated before,this is the way,for example ,industrial machine tools,originating from that area are also made.I have also stated,that I hope that arrogance does not lead this fine line of saws down the road of 2 of the former greats,Homelite and McCulloch,history will tell. This,by the way,is not about"my saw is better than your saw"

 

[MasterBlaster]

Re: Standard

Originally posted by geofore
I can hear them calling me to the garage for some quality time.

Ah, yes! And why wouldn't they?

 

[glens]

Al,

What other saw brand(s) uses common air filters across multiple models (seriously asking)?&nbsp; Everything in the current Stihl line starting with the MS440 uses the same air filter.

I don't know about the oil pumps but can't imagine anybody using the same one across (many) models.&nbsp; That doesn't sound like good design since the requirements are vastly different.

Everything relatively current in the Stihl pro lineup uses the same clutch cover.

Most all the saws use the same bumper spike.

The machine screws all have the same wonderful head and the few thread sizes/lengths are almost universally interchangeable.

The chain catchers are the same item on at least the 044 through 066 (I think - I know the two models mentioned share the same part).

The chain tensioners are all common items on more than the upper half of the line.

How about my '79 Chevy van that required both metric and "English" tool sets just to do some of the simplest maintenance?&nbsp; Is that better than the scenario you're describing?

Glen

 

[Al Smith]

Good point,however

Perhaps,I am used to "old school" types of American interchangability.For example,a majority of these saws used the same type Walbro,or Tillotson carb,but different filters.The oil requirements for.as an example,an 066,and an 048,would be the same,on say a 24" bar.Would they not?Now,as I have said,I am not knocking the quality of this product,only the mindset,in it's design.Have you ever tried to find a replacement bearing,other than a dealer.Don't waste you time,as there is none.This control of parts availability is accross a broad spectum of goods,originating from that area,I deal with it constantly,in areas not related to chainsaws.Historicaly,GM,with it's "71" series diesel,was one of the first to use interchangable parts,along a broad size of engines.It is noteworthy,that the US auto makers,are going back in that direction.As far as your Chevy,that was a transition period,and all makes had that problem.Also,to note,the 429-460 Ford,was the last one to built an engine using sae sizes.I saw the first one that was accepted for production,and ,ironicaly,the last one go down the assembly line.

 

[glens]

Stihl most likely doesn't make their own bearings, and they likely don't buy enough of the ones they use to justify a bearing maker tooling up to produce them as almost-one-offs.&nbsp; I'm merely guessing about that, but am reminded of a time when cleaning up after a large job, it was found that the upper swing pivot bearing on a leased skid loader backhoe attachment was FUBAR.&nbsp; I called the local bearing house to get a replacement and was told they didn't have the cross-reference part.&nbsp; I hung up the phone, drove over there, asked to see their catalog, and within moments had a part in my hand that was a perfect fit in every dimension.&nbsp; Sure, they didn't have the exact cross-reference to the particular bearing number, but they had the same thing listed differently.

Yes, the oiling requirements would be the same between the two saws when pulling 24", but one of the saws will quite readily pull more.&nbsp; And even if it didn't, the larger saw likely has larger bearings and maybe a larger clutch.&nbsp; Should the smaller saw be burdened with greater weight of larger-sized power-producing/containing components so they can share them?&nbsp; What's the point of different saw sizes?&nbsp; I know Stihl utilizes the same chassis in their famous large homeowner saws, using just basically different upper halves of their bolt-in engines, but none of the others in the line share chassis that way (except maybe the 270/280?).&nbsp; Husky does (or did recently) with the 362/372, and Dolmar/Makita does with the bubble saws in three different sizes.&nbsp; But with them you buy the smaller saw and you're toting more weight than you need to, or you're getting less power than you could (and no, I'm not talking about hot-rodding saws since I don't think it's a good idea for a production saw one expects long life from).

Well, I don't want to argue with you and I sincerely hope it isn't coming across that way.&nbsp; I'm just pretty much thinking out loud.

Glen

 

[lucky]

bearings

Try circumventing stihl and getting bearings for the 044/046. The manufacturer tools up and makes special runs for stihl or at least that's what all the bearing houses told me. At around $30 per bearing I was determined to find a better way but no.

For being similar in size the 044 and 046 don't share as many parts as one would hope. That's my gripe. Not arguing with anybody either. At least in this thread

 

[Mange]

Re: bearings

Originally posted by lucky
Try circumventing stihl and getting bearings for the 044/046. The manufacturer tools up and makes special runs for stihl or at least that's what all the bearing houses told me. At around $30 per bearing I was determined to find a better way but no.

Here you can order anything from 2,3mm bearing, up to 800mm with out problems, by any engin restore shop. The all get from SKF around here.

Orderd crank bearings a few times at half price of original part.

 

[Al Smith]

re,re bearings

In referance to Stihl bearings,specificaly 042-048 crankside.They are,of course metric.The inner race has a radius on the crank side,and a step in the outer race,on the cover side.These are,indeed ,special run bearings,the sole rights,of the sale,of these bearings,belongs to Stihl.If you research them with Fafnir,***,SKF,the number will come up as OEM,[origianal equipment manufacturer].As a point of reference,and not for arguement,there is a company called commercial shearing.This company ,makes some of the best hydrualic pumps available.The tolerances,are in the tenth thousand ranges.They use precision bearings,in fractional metric sizes.Now,if that's not control of parts,I don't know what is.