32 inch bar/7900

[wilson225]

I'm sure this has been dicussed but I found nothing. Over the weekend I was running a new oregon skip chain on a 32 inch bar with a modded 7900. I had it buried in some 30 inch ash. Ran strong but I believe my oiler was struggling. Is that pretty typical for the 7900 with that length or did I have a problem?

 

[w8ye]

You just said it all. That's the story in a nutshell

 

[Tim Carroll]

It is too bad they don't have a manual overide for a little more oil when needed on longer cuts like the old McCullochs had. I just purchased a 28" Oregon Powermatch (From Bailey's) with skip tooth chain for my 7300 and I have not tried it yet. I think I will turn the oiler to the max before I attempt a cut. Here's a pic to prove it happened.:msp_smile:

View attachment 287931

 

[w8ye]

It has always been said on here that 28" is the practical oiler limit on this series 6400, 7300, 7900, etc

 

[porsche965]

Whatever the in-convenience beyond 28" the 7900 is one fine saw IMO.

 

[mitch95100]

Their a HELL of a saw no doubt about it...
and thats one of the reasons why i took up carrying their line of products. Ther a heck of a company imho

 

[wilson225]

It has always been said on here that 28" is the practical oiler limit on this series 6400, 7300, 7900, etc

I can believe that after this weekend....so with the bar not getting enough oil what are the concerns? Will it ruin a B/C? How much does it effect the cutting?

 

[Tim Carroll]

I can believe that after this weekend....so with the bar not getting enough oil what are the concerns? Will it ruin a B/C? How much does it effect the cutting?

It can cause bar burn, premature failure of the b/c and will put more load on the engine. You need to have enough oil to run the length of b/c you are running. I have heard some members claim that they have run a 32 in b/c but the oiler is only marginal. That is one reason why I went with the 28" b/c. The other reason is that mine is only a 7300 and I wanted to make sure I was not pushing the powerhead too hard. The big bar is only for the odd monster that I need to tackle and 90% of the time it will wear a 20" b/c.

 

[w8ye]

Discussing the finer points . . . Some woods need more oil than others.

Therefore a Dolmar with a 32" bar may be fine for one guy cutting a certain type wood. (Green wood is often easier than dry wood.)

But 28" is about it for all around cutting from a oiling standpoint on the 6400, 7300, 7900, &. BB though the chainsaws sometimes have more power than that.

I have two 7900's and they both came with 24" bars but I later acquired a 28" bar on a Husky that I swapped onto one of the 7900's.

I cut mostly fallen trees and they are usually dry.

 

[wilson225]

Discussing the finer points . . . Some woods need more oil than others.

Therefore a Dolmar with a 32" bar may be fine for one guy cutting a certain type wood. (Green wood is often easier than dry wood.)

But 28" is about it for all around cutting from a oiling standpoint on the 6400, 7300, 7900, &. BB though the chainsaws sometimes have more power than that.

I have two 7900's and they both came with 24" bars but I later acquired a 28" bar on a Husky that I swapped onto one of the 7900's.

I cut mostly fallen trees and they are usually dry.

This is beautiful! Now I have an excuse to get that 390 I've been eyeballing

 

[Andyshine77]

I've ran my ported 7900 with 32" bar extensively and it does fine, but it is the limit for the oiler. A few tips that really help. Obviously keep the chain sharp, rev the saw between long cuts, this really helps oil the chain. I personally do the above with any saw.

 

[roberte]

It is too bad they don't have a manual overide for a little more oil when needed on longer cuts like the old McCullochs had. I just purchased a 28" Oregon Powermatch (From Bailey's) with skip tooth chain for my 7300 and I have not tried it yet. I think I will turn the oiler to the max before I attempt a cut. Here's a pic to prove it happened.:msp_smile:

View attachment 287931

on the kitchen table, now serving ramen noodles