BB Dolmar/Makita with a difference...

[parrisw]

Well that doesn't make it 85 either... close enough I guess.



Nah mate...it's a BB EIGHTY FIVE hundred!

Don't expect anything too exciting Will. They are alot different to what I'm used to.
54mm opens up doors for a possible piston change. Will have to look into that.

I hear they like lots of blowdown? Too bad it has an offset combustion chamber, makes making a popup difficult.

 

[AUSSIE1]

I hear they like lots of blowdown? Too bad it has an offset combustion chamber, makes making a popup difficult.

Yeah I reckon I could get around that with a rotary table.

 

[parrisw]

Yeah I reckon I could get around that with a rotary table.

Ya, I know. I could do it in my 4 Jaw, but its the finding of the center of the chamber that is hard?

 

[Rudolf73]

Yeah I know. There is a guy in Australia who listed one as "genuine" which was a hit on another somewhat lame Australian chainsaw forum. A whole heap of gullible people responded about "WOW, how rare is that thing?" Blah blah blah. I was going to report him and then found out he had another "genuine 070" for sale. Outstanding! I made sure that my next post in that thread included the link to his SECOND genuine 070...
By the way, have you ever tried to report someone on eBay when you weren't the buyer of the item? Had me well and truly confused so I gave up.
He got AUD$1250 for a saw he would have landed for about AUD$450 or less.

Yeah, trying to report someone on ebay is rather complicated, I tried reporting one of these guys once and it turned out to be a big job. haven't done it since.
That poor guy paid $800 to much for that saw...

 

[MCW]

I hear they like lots of blowdown? Too bad it has an offset combustion chamber, makes making a popup difficult.

Yeah I reckon I could get around that with a rotary table.

Ya, I know. I could do it in my 4 Jaw, but its the finding of the center of the chamber that is hard?

Talk to Nik (Fatguy). He did a nice job on the pop up in my Makita with it being offset.

I see an Aussie vs. Canada battle coming up and a youtube fest.

Should be good

 

[parrisw]

Talk to Nik (Fatguy). He did a nice job on the pop up in my Makita with it being offset.

I see an Aussie vs. Canada battle coming up and a youtube fest.

Should be good

Ya, Nik did a real good job on that.

 

[parrisw]

I see an Aussie vs. Canada battle coming up and a youtube fest.

Youtube showdown eh!! Could do that, don't know how good it will be though. LOL

 

[blsnelling]

 

[parrisw]

Thanks Brad, I'm wondering if the BB kit has the same offset.

 

[MCW]

I hear they like lots of blowdown? Too bad it has an offset combustion chamber, makes making a popup difficult.

Yeah I reckon I could get around that with a rotary table.

Ya, I know. I could do it in my 4 Jaw, but its the finding of the center of the chamber that is hard?

Talk to Nik (Fatguy). He did a nice job on the pop up in my Makita with it being offset.

I see an Aussie vs. Canada battle coming up and a youtube fest.

Should be good

 

[tdi-rick]

[snip]
54mm opens up doors for a possible piston change. Will have to look into that.

Am doing the same, will let you know what i find

 

[parrisw]

288 piston apparently will work, but has different pin size, not sure if its bigger or smaller. Brad says nik knows a little about it.

 

[tdi-rick]

288 piston apparently will work, but has different pin size, not sure if its bigger or smaller. Brad says nik knows a little about it.

Bigger, 13mm pin vs 12mm for the Dolmar.

It's on my list of pistons to look at

 

[parrisw]

Bigger, 13mm pin vs 12mm for the Dolmar.

It's on my list of pistons to look at

Ok, so would require some spacers and use the Dolmar 12mm pin. I've made spacers like this before for another members project.

 

[AUSSIE1]

The Meteor 288 looks to have a wider skirt and 1 ring with the pin in the centre so you could get full use of the skirt.

 

[parrisw]

The Meteor 288 looks to have a wider skirt and 1 ring with the pin in the centre so you could get full use of the skirt.

Yep, or so I hear anyway.

 

[MCW]

And a video of both my ported Dolmar 7900 and the BB kit on the Makita. Apart from the 3 port muffler the Makita has just got the stock BB kit on it. The Dolmar has been ported with a dual port muffler on it. There is absolutely nothing in it at all and in the hands the actual BB kitted Makita feels faster.
The wood is pretty hard too and as you guys in the states can see in the vid, even with new Stihl RSC chain there is a lot of fine dust.
At the end the log started moving while the Makita was cutting but you'll get the idea. Only 2 1/2 tanks through the Makita at this stage and it's still pretty tight.



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[WKEND LUMBERJAK]

Times are very close. To bad there isn't a stock 7900 in the mix.

 

[MCW]

Times are very close. To bad there isn't a stock 7900 in the mix.

Unfortunately CAD kicked in and they've all been modified

 

[WKEND LUMBERJAK]

Still looks good. Should continue to get better.