This 066 Grenaded........What The Hell Happened???????

[GrassGuerilla]

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Pulling wood chips in varied diameter and hardness logs, with different sharpness and configged chains, is a lot different than pushing a string or impeller at a relatively constant torque and rpm load. IMO, can't prove it, but seems reasonable. I mean, example, how do you "dig in the dogs and lean" on a blower?

Freaking two stroke oil is so dang cheap......why penny pinch on it?

Agreed on both points. Obviously different load situations. I know one of my trimmers has near a thousand hours on it with 50:1 Echo mix. And believe me, doing clean ups on foreclosed properties for for years, it's been under many prolonged heavy loads.

 

[sgrizz]

excellent thread randy and has me thinking of switching from 50:1 to 32:1 to be safe. Now none of my saws are ported(yet)so I would rather be safe then sorry. I am using stihl ultra with Sunoco gtx 260 (98 oct)

 

[HuskStihl]

My 2 cents on the oil ,i have torn down stock saws run on stihl mix 50 to 1 ,the bearings were getting lube ,but turning black carbon color ,i have torn down my saws 32 to 1 and there is a generous coat of clean oil on everything and bearings look clean ,another finding 32 to 1 is leaner ,thicker oil through the same jet size allows you to pour in more fuel ,more fuel = more power ,ask husk how his saw ran at 50 to 1 and 32 to 1 ,he can vouch for this i think

Brian, I think I'm a few thousand foolish posts past the point of anybody taking my input seriously, but 32:1 runs great in my big saws. My 394 has neves seen 50:1 tho. I went from 40 to 32 on u'r rec and never looked back. Even tuned the 445 baby saw for 32 just so I didn't have different mixes laying around

 

[Mastermind]

excellent thread randy and has me thinking of switching from 50:1 to 32:1 to be safe. Now none of my saws are ported(yet)so I would rather be safe then sorry. I am using stihl ultra with Sunoco gtx 260 (98 oct)

40:1 is a safe ratio I think......and am not sure all oils will work good @ 32:1. I'm a simple guy.......I read all I could find about oils, and settled on H1R, I'm sticking with it. It's designed to mix @ 32:1 up to 125cc.......

 

[sgrizz]

Good point also randy. I want to get one of my saws ported so I see I would have to mix it at 32:1 in your signature at the bottom.

 

[Mastermind]

Good point also randy. I want to get one of my saws ported so I see I would have to mix it at 32:1 in your signature at the bottom.

It's good insurance for you as an end user, and for me as an engine builder. When something like this happens, I feel like I should try to cover it, well in this case that cost me a nice 660 bottom end I was planning to build. I don't need a 660, but I could have sold it.....

If I put that disclaimer in my sig, maybe I won't feel as responsible.

Chances are, I'll still kick in at least the damn labor.....I hate seeing saws broked.

 

[sgrizz]

I admire your loyalty to stand behind what you build but you cannot be responsible for operator error.
You try to keep everyone happy and willing to work out deals to keepit fair.

 

[GrassGuerilla]

It's good insurance for you as an end user, and for me as an engine builder. When something like this happens, I feel like I should try to cover it, well in this case that cost me a nice 660 bottom end I was planning to build. I don't need a 660, but I could have sold it.....

If I put that disclaimer in my sig, maybe I won't feel as responsible.

Chances are, I'll still kick in at least the damn labor.....I hate seeing saws broked.

Randy, the way you stand behind not just your work, but your customers, speaks volumes. I look forward to sending you some work. Your contribution to the knowledge base, and community hasn't gone unnoticed. Your very generous to share so much with this board. I have the utmost confidence in you, your work, and your word.

 

[exSW]

First "oil" thread on here I ever liked.The thing I'm coming away with is saws run on the far edge of their performance shouldn't be running 50:1.I read this having just come in from doing a comp test on my 420.It's down to 165 from 180 when in was new in april.I've cut about 40 cord of hardwood with it since new.That includes felling,branching,limbing and bucking.Basically if the 16" bar could handle it I used it.I've run it to spec with Dolmar's oil.Yes it's tuned properly and the cat has been removed.

 

[Trx250r180]

i broked my first mastermind saw at 50 to 1 stihl mix ,i have never had a failure since running the h1r 32 to 1 ,think i am on saw 5 being hopped up from him ,and yes Randy fixed it even though it was my screw up with the oil ,that saw is still running good

 

[Mastermind]

Listen to this song.......it makes all oil threads null and void.

 

[Lark-o]

Remember that we add compression......that raises both static, and dynamic cylinder pressures. That, in turn, adds a heavier load to the connecting rod and bearings. The oil is a protective film that acts as a layer of protection between the moving parts. I think that the layer is too thin with 50 - 100:1 mixes and is hammered out, allowing the parts to make contact, and create fictional heat.

Notice I said I think.......I don't have all the answers. That's why I enjoy these threads......it gives us a chance to compare notes, and do some brainstorming.

Randy you should get ahold of amsoil and show them the pictures. I talked to a guy from amsoil at snowmobile show a few years ago that wanted to hear about experiences good or bad with their oil. I had a sled blow a water pump gasket and it ate a lot of coolant and my engine guy and I gave praise to their oil for no damage to the pistons and cylinders during the event.

 

[Mastermind]

I have no prove that the saw was tuned correctly...they would cry foul I'm sure.

 

[Lark-o]

I have no prove that the saw was tuned correctly...they would cry foul I'm sure.

Maybe...maybe not.

 

[boxygen]

Randy, you are being quite a stand up gentlman if you are absorbing a lot of parts and labor in this situation. But that is the type of guy that we all know you are. You have convinced me however that 32:1 is a good safe bet. The pictures are worth a thousand words, as they say. I alway mix 50:1 and then add some more oil for good measure. I've been using Husky XP oil for years mostly out of convenience of mixing 2.5 gallons at a time. I have been thinking about switching to syn for a little while now. This has galvanized it for me. Thanks for dipolmatically actually giving us an objective argument with facts (at least the side of the story we have) and conclusions to support the great oil debate. I'd hate to see that happen to my 394

 

[morewood]

And I heard from the wilderness(Tennessee), use 32:1 in all the saws I have built for you(4 and counting), and so it shall be done. Simple.

Shea

PS-I need to talk to you after I get off work Randy, no it ain't about oil.

 

[Mastermind]

Maybe...maybe not.

Who would I need to contact?

 

[Jacob J.]

Ceramic bearings won't last under the loads these engines see. Not according to guys that know far more than I do.

Ceramic bearings in a worksaw are a waste of time...

 

[Lark-o]

Who would I need to contact?

I'll see if I can get you a contact up there. If anything else it would be interesting to see what their take is on the subject. I'll warn you, They're a bunch of cheese heads.

 

[Mastermind]

I'll see if I can get you a contact up there. If anything else it would be interesting to see what their take is on the subject. I'll warn you, They're a bunch of cheese heads.

I live in a world where drama ain't well tolerated......just sayin.