G372 and g372xp differences

[Maintenance Chief]

I was tearing into my 2 Blue Husqvarna clones and noticed a few differences.
Fisrt both the 50mm G372XP and the 48mm G372 had 1 piston ring.
52mm
48mm

 

[ammoaddict]

Does the 50mm run noticably stronger than the 48?

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[Maintenance Chief]

52mm Grey gasket.
48mm Green gasket

 

[Maintenance Chief]

here's a view down the 50mm , as expected the squish band is "as cast" . The saw performed fair to well but it definitely had alot of space in there , I only have solder around 30 and it was a no crush.

 

[Maintenance Chief]

Here's the 48mm , the squish band is alot nicer but still very little compression with the squish being well over 30.

 

[Maintenance Chief]

The two side by side, you can really see the difference between the transfers.
48mm being much smaller.

 

[Maintenance Chief]

The strangely interesting part for me was the casting on the 48mm?
Most AM have no casting numbers or symbols of any kind, So Something to be aware of.

 

[Maintenance Chief]

Does the 50mm run noticably stronger than the 48?

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I only ran it for about 20minutes(48mm), but yes the 50mm ran better.

 

[Maintenance Chief]

This is a 52mm I installed on the G372XP, its transfers were a little choked and the exhaust port was absolutely abysmal, this picture was after about 2 small hand fulls of aluminum was taken out.

 

[Maintenance Chief]

The G372XP did pull a full comp 24" bar well but it would have been extremely difficult/painful for it to run a 28" .
The 50mm cylinder will go one the G372.

 

[Maintenance Chief]

 

[Maintenance Chief]

Exhaust port of 52mm.

 

[smokey7]

52mm ran decent. Looks like it has spent alot of time idling or low load and temp cutting
That long cut got her smoking good. Nice work on the dingy ling saw

 

[Maintenance Chief]

52mm ran decent. Looks like it has spent alot of time idling or low load and temp cutting
That long cut got her smoking good. Nice work on the dingy ling saw

Well I wish , the smoke was my first muffler mod that actually caught a small peice of the wood on fire! So consequently I moved the top deflector to the back side of the muffler and screened it.

 

[Maintenance Chief]

Heres the 50mm with the pop up piston. First tank of mix.