044 / 046 hybrid help

[wv311]

I have an older 044 that runs great and has no issues of any kind. I recently picked up a 046 that got smashed by a tree. The cases are cracked and the rear handle and fuel tank are also junked. Would it be worth my while to swap the jug and piston from the 46 over to the 44 ? Also is it that simple to swap it over ?

 

[Mad Professor]

Has to be a 12mm piston pin 044 I think.

Why not keep the 044 as is and find a blown up 046/460?

 

[wv311]

That’s a great option too. I was mainly asking out of curiosity.

 

[blsnelling]

It can be done but is not a direct swap.

 

[earlthegoat2]

It does need to be a 12mm as there are no 10mm 046 pistons. If I were in your position I would look for an 044 builder to make the hybrid out of. Small amounts of mechanical skill and the right tools (die grinder, dremel, fordom, etc.) and the hybrid can be built. When I did mine I had to replace the crank bearings as well so that requires some kind of press.

 

[Poleman]

I wouldn’t mess with your running saw. Like mentioned find a builder 44 and have some fun with it and learn. It can be accomplished with the use of a Dremel, drill and files...and patience in detail in fitting jug and plastic.

 

[wv311]

Is there anyway to identify a 12mm saw without tearing it down to actually look at the pin ?

 

[Poleman]

You can get an idea by serial number <129xxx are usually 10mm, and by fine angel, straight ot slanted but thats not always accurate. Look for a red choke w switch is an indicator of an earlier model 10mm also.

 

[earlthegoat2]

Unfortunately the saws are too old for serial numbers to be a reliable means of identifying them. I have only seen one 10mm saw in my life and I have seen 3 12mm saws whose serial number fell into the supposed 10mm serial range.

 

[blsnelling]

Post some pics of your saw and give us the SN.

 

[wv311]

SN 131099456

 

[wv311]

 

[blsnelling]

That's a 12mm wrist pin saw but looks to have the desireable "10mm" topend. They were used on some early 12mm saws.

 

[wv311]

Thanks for the info Brad. I got it as payment for 30 minutes of tree work for a guy. It had a bend in the top handle and a crack in the clutch cover. Other that that it’s in great shape.

 

[Rusty01]

That's a 12mm wrist pin saw but looks to have the desireable "10mm" topend. They were used on some early 12mm saws.

Out of curiosity, what’s the advantage of an 046 top end, over a 044 big bore top end?

 

[ironman_gq]

Out of curiosity, what’s the advantage of an 046 top end, over a 044 big bore top end?

Factory porting and quality is almost always better on the OEM jugs, other than that there isn't really any difference. If you get one with good plating and plan on working the ports yourself then it's a wash.

 

[blsnelling]

Out of curiosity, what’s the advantage of an 046 top end, over a 044 big bore top end?

As a general rule, I won't mess with AM topends.

 

[drf255]

Out of curiosity, what’s the advantage of an 046 top end, over a 044 big bore top end?

Many

The big bore 044 jugs have a widened bore but the same transfers, so the bore encroaches on the transfers and they don’t flow as well.

Nothing matches the fitness of an oem jug. Even after many many hours in experiences hands on an AM Jug , it’s hard to beat OEM ports and the oem will still run better.

An 046 Jug isn’t an exact bolt-on. It requires some extra work but it’s worth it.

 

[ironman_gq]

Many

The big bore 044 jugs have a widened bore but the same transfers, so the bore encroaches on the transfers and they don’t flow as well.

Nothing matches the fitness of an oem jug. Even after many many hours in experiences hands on an AM Jug , it’s hard to beat OEM ports and the oem will still run better.

An 046 Jug isn’t an exact bolt-on. It requires some extra work but it’s worth it.

I should mention that it takes very little work to get the 046 jug to fit. It's not much more than slightly adjusting the mounting holes and clearance the flywheel side transfer bulge to clear the flywheel, I think it took me 20 minutes to get mine fit up.