Re Creating a Classic 046

[huskyboy]

Mike I have seen you say this a bunch of times, and I have no idea what you're talking about.

What is a Tank Holder?

I think he means the gas tank

 

[MustangMike]

So a increase in intake duration and a tiny nibble on the upper corners of exhaust made a huge difference in torque and power? Intake gained what 4or 5 degrees?

The intake started at 74. I brought a little section in the middle down to 77.5. I was not impressed with it. It ran OK, but no wow factor.

Now the intake is at 80 and I lowered it the full width (an arch like a big smile, or smily face). It feels a lot stronger.

 

[MustangMike]

This, I didn't make up the term, but it is what you search for when you want one.

https://www.ebay.com/itm/STIHL-CHAI...:Bm4AAOSwlMFZJLb9:sc:USPSPriority!10509!US!-1

 

[Sty57]

Honestly every time I seen you say that.
I was picturing that AV mount on the upper left side of the case in my mind.

I've never heard that term before.

 

[MustangMike]

I would guess that is the part I most often need when I get a parts saw. Many of them are visibly broken or missing, but even when I get one that looks in tact I will often find a hair line crack in the fuel tank.

I guess before AM parts arrived on the seen, if you broke one, you saw was often not worth fixing. That is what they told me when I broke the one on my 044, so I ordered an OEM one on line (for about $160) and fixed it myself.

 

[J_M____]

Mike I have seen you say this a bunch of times, and I have no idea what you're talking about.

What is a Tank Holder?

I think he means the tank/handle assembly

 

[MustangMike]

Yes, my bad, but it does hold the tank. I think either search pulls it up.

 

[MustangMike]

Well, I got the "project saw" today that I thought was another 046 - D jug. The SN was early enough, and it has a Stihl OEM DP muff cover, but the jug must have been swapped, because it is a Hemi jug. At least the P+C look to be in good shape.

I'm sure it was originally a D jug, and most of the original parts are still there. The recoil actually works, but I'm going to replace the rope and Elastostart handle, it is worn and weathered.

It has the 3 leg 1309 coil, which is supposed to be better.

And a HD-8A carb??? Never seen one before, can anyone tell me what it is?

I suppose I should put the coil and carb on the 046-D saw I just did, but I'm kinda superstitious about not messing with good running stuff, and I like the way that saw runs the way it is.

Maybe I'll just put these parts aside in case I come across another D jug. I have other coils and carbs.

 

[Canadian farm boy]

Well, I got the "project saw" today that I thought was another 046 - D jug. The SN was early enough, and it has a Stihl OEM DP muff cover, but the jug must have been swapped, because it is a Hemi jug. At least the P+C look to be in good shape.

I'm sure it was originally a D jug, and most of the original parts are still there. The recoil actually works, but I'm going to replace the rope and Elastostart handle, it is worn and weathered.

It has the 3 leg 1309 coil, which is supposed to be better.

And a HD-8A carb??? Never seen one before, can anyone tell me what it is?

I suppose I should put the coil and carb on the 046-D saw I just did, but I'm kinda superstitious about not messing with good running stuff, and I like the way that saw runs the way it is.

Maybe I'll just put these parts aside in case I come across another D jug. I have other coils and carbs.

The 1309 coil I believe advances the timing sooner then the other 1128 series coils. They're great coils to use on a ms461 if you want to get rid of the factory limited coil.
The HD-8A carb should have bigger jets (#70 iirc) compared to the later HD series carbs used on the 1128s.

 

[MustangMike]

Wow, thanks Mike, so it is like my HD-11?

 

[Canadian farm boy]

Wow, thanks Mike, so it is like my HD-11?

I think so. I'm not 100% sure. It's been a while since I looked at one of those carbs.
Maybe pop the top off the carb and see what's stamped on the jet.

 

[Canadian farm boy]

@MustangMike I think that carb is old enough that it probably doesn't have limiters on the screws.

 

[huskyboy]

My hd14 (I think it was) had a #70 jet and no limiters.

 

[RI Chevy]

Walbro carbs for 440, 460

 

[huskyboy]

Walbro carbs for 440, 460

Wow hd18/hd50 are choked up pretty good

 

[MustangMike]

Thanks Jeff, I did not remember that the 8 was on your list!

I think I used a 16 on the 046-D, not a bad carb, no wonder it runs well!

Anyone know the difference between A, B +C? I think I have HD 17 with all 3 letters.

 

[JonCraig]

Here’s some info on timing advance on the 1309 coil from that other place:

https://www.arboristsite.com/community/threads/046-good-coil-timing-advance.311886/

 

[MustangMike]

Most of the carbs I got now are HD 16, either A or L ??? I know I have seen other letters, but I must have used them.

 

[huskyboy]

I advanced mine .020 with the 1309 coil and it would kick if u half assed starting. Ran great though.

 

[MustangMike]

Here’s some info on timing advance on the 1309 coil from that other place:

https://www.arboristsite.com/community/threads/046-good-coil-timing-advance.311886/

So, what did you end up doing, and how did it run???

I believe .020 is about 6 degrees advance on these saws, and I usually keep it between .020 and .025.

Half a key would be .034, which, IMO, is a lot.