Husqvarna 564xp (g) fuel inject

[oddsaws]

Thank you Sir.

Would like to see a pro's review after few months of real world usage under changing climatic conditions.

Be safe out there.

I agree.

Throw it in the back of the truck, minimal cleaning, run it over, and drop it out of the bucket like the real tree guys

 

[woodfarmer]

It only took them 10 years to fix their mistakes with the 562!

 

[farminkarman]

It only took them 10 years to fix their mistakes with the 562!

Time will tell on that one. I’m curious if they kept the junk crank bearings or if they decided to improve them.

 

[bwalker]

Time will tell on that one. I’m curious if they kept the junk crank bearings or if they decided to improve them.

The bearings were not junk. They just were not sized right for the heavy piston and they were under lubed. The 32:1 guys didnt have crank bearing failures.

 

[farminkarman]

The bearings were not junk. They just were not sized right for the heavy piston and they were under lubed. The 32:1 guys didnt have crank bearing failures.

you have an answer for everything don’t you. I have seen two of them go down with less than 5hrs on the clock and they both had good oil at 32:1. I know that some people have logged a lot of hours on them with 32:1. What other current saw is this prone to failing bearings? If it were all a design issue, then nobody would get decent runtime. The quality control is obviously not there on something…seems to me that it is bearings. Maybe it is something else, idk.

 

[Outback]

Bike vs. Car. On one hand strato saws should have more oil to compensate for reduced fuel/oil per time ran on the bottom end. On the other husqvarna has changed the bearings like 3 times... One might think they have had bad bearings or the factory assembly process was flawed and the bearing blamed instead.

 

[EFSM]

you have an answer for everything don’t you. I have seen two of them go down with less than 5hrs on the clock and they both had good oil at 32:1. I know that some people have logged a lot of hours on them with 32:1. What other current saw is this prone to failing bearings? If it were all a design issue, then nobody would get decent runtime. The quality control is obviously not there on something…seems to me that it is bearings.

I had a customer bring one in with an only a part tank of fuel used from new and a totally shredded bearing (PTO side IIRC). Unquestionably they had some bad runs of bearings and a serous design flaw.

 

[cuinrearview]

you have an answer for everything don’t you. I have seen two of them go down with less than 5hrs on the clock and they both had good oil at 32:1. I know that some people have logged a lot of hours on them with 32:1. What other current saw is this prone to failing bearings? If it were all a design issue, then nobody would get decent runtime. The quality control is obviously not there on something…seems to me that it is bearings. Maybe it is something else, idk.

I had a customer bring one in with an only a part tank of fuel used from new and a totally shredded bearing (PTO side IIRC). Unquestionably they had some bad runs of bearings and a serous design flaw.

Huh. Real world, first hand knowledge...

 

[farminkarman]

I had a customer bring one in with an only a part tank of fuel used from new and a totally shredded bearing (PTO side IIRC). Unquestionably they had some bad runs of bearings and a serous design flaw.

It would be great if the 564 doesn’t share these issues with the 562.

 

[EFSM]

It would be great if the 564 doesn’t share these issues with the 562.

There is no way it can be significantly more powerful and even somewhat reliable unless they rethink the bottom end.

 

[bwalker]

you have an answer for everything don’t you. I have seen two of them go down with less than 5hrs on the clock and they both had good oil at 32:1. I know that some people have logged a lot of hours on them with 32:1. What other current saw is this prone to failing bearings? If it were all a design issue, then nobody would get decent runtime. The quality control is obviously not there on something…seems to me that it is bearings. Maybe it is something else, idk.

You sure like jumping to conclusions dont you?
My 562 ran for years just fine.
And none of the strato saws have ultra reliable bearings.

 

[bwalker]

There is no way it can be significantly more powerful and even somewhat reliable unless they rethink the bottom end.

The 564 has a shorter stroke which loads the crank less.

 

[EFSM]

The 564 has a shorter stroke which loads the crank less.

By how much?

 

[farminkarman]

You sure like jumping to conclusions dont you?
My 562 ran for years just fine.
And none of the strato saws have ultra reliable bearings.

So experience with one 562…got it.

 

[EFSM]

The 564 has a shorter stroke which loads the crank less.

So a 4% reduction in stroke will offset a 15% increase in power? I doubt it.

 

[cuinrearview]

The bearings were not junk.

And none of the strato saws have ultra reliable bearings.

Which is it?

 

[bwalker]

Which is it?

Both.
Even the highest quality bearing won't last when exposed to loads too high and lubrication less than optimal.
The 372 XT is an example. Its had some bearing issues while the OE 372 very rarely had issues and they are basicly the same saws minus the strato feature.

 

[bwalker]

So a 4% reduction in stroke will offset a 15% increase in power? I doubt it.

Many of the saws with these bearing issues have been ported with much higher gains than 15% and lasted just fine.

 

[Outback]

044/372oe.s were fine ported with that size of bearing. It was the strato ones that ate bearings. Its the mains not the rod bearing going. The bearings in the 562 might have been extra special or again maybe there being assembled in a way that side loads the bearing from the factory and the bearing is blamed for bad assembly technique.

 

[EFSM]

Both.
Even the highest quality bearing won't last when exposed to loads too high and lubrication less than optimal.
The 372 XT is an example. Its had some bearing issues while the OE 372 very rarely had issues and they are basicly the same saws minus the strato feature.

I have seen a grand total of 1 372 XT with a failed bearing, and it wasn't even the cage; the balls started to flake. I have seen quite a few with wallowed bearing pockets, indicating that the crankcases weren't at all built with a strato piston in mind.

Many of the saws with these bearing issues have been ported with much higher gains than 15% and lasted just fine.

??