2 stroke cold seize

I agree 100%.

 

I had a 2007 deere 2520 compact tractor I bought new. Yanmar built. The manual on that said to allow it to idle for at least two minutes after hard work or it could damage the engine. My Kubota L3800 doesn't say that but I still do it.

 

Not sure if it is turbocharged or not, but turbo engines NEED to idle for a bit before shutdown, unless maybe they were just recently being used under light load/RPM...failure to do so can cause coking of the oil that cools/lubes the turbine shaft/bearings...which is not good if that happens since the oil flowing through the "bearing" is what the turbine is actually riding on...so coked up oil passages = bad day! Anything that can turn over 100,000 RPM and see temps headed toward 2000*F, needs oil, and cooling!
(I'm sure I'm not telling you anything that you don't already know)
When I see someone driving a turbocharged vehicle (they are pretty common these days...Ecoboost for one...they're everywhere!) and they come wheeling in like a maniac, throw it in park and shut 'er down, I just cringe while thinking about the repair bill they are going to have if they continue to drive that way...

 

I think Ford is starting to take that into consideration now but maybe not. Some shops and certain engine manufacturers use a pump to keep circulating oil and or water around turbo to help prevent the coking of oil in them. I still let mine cool but the don’t probably require it as much in regular driving. Let’s face it the turbo isn’t under heavy strains a lot of time because people aren’t towing as much with a 1/2 ton truck. Last 4 vehicles I’ve owned have turbos we currently have a 2022 explorer 2.3 ecoboost and a 2021 f-150 2.7 ecoboost. Fresh full synthetic oil every 4000 miles and a air filter every other oil change

 

Both tractors are non turbo but you are spot on about what happens when ran hard and put away wet with a turbo. Coked oil is very abrasive. By by turbo bearings. I used to run a unit on my vehicles called the Pre luber. It would pump up the engine to 50 psi with the key in the position just before starting. Engine never started dry. It also had an adjustable after oil feature where you could have it circulate oil for up to 5 minutes after shutdown for turbo applications. There are turbo timers too. You pull your keys, lock up and walk away. They keep the car idling and shut off on their own so you don't have to set there and idle. I've not owned a turbo yet so I haven't used that feature of the Pre luber or turbo timers.

 

Well to be honest I can't say I've heard/read about it much, if it was a bigger issue I think there would be more posts online on it being a problem.
I read about it years ago and just been doing it but always wondered. Made sense to me, I let my vehicles warm up, why not other power equipment.

Was helping a friend month or so back and while I was letting the saw warm up.
He gave the what are you waiting on look, Told him, it needs to warm up some. Usually I just wait till I don't want to put my hand near muffler.
I like the cylinder fin tip.
I never knew about water cooled 2 strokes being more prone to it, but I've never owned water cooled 2 strokes.
Maybe we can prevent new folks from destroying their new equipment with this thread.

 

Just because it doesn't seize doesn't mean that harm isn't being done.
A little teeny tiny scuff here and there just add up.

 

I might do this to something. Pull it apart, clean it up, take pictures to show no damage before then run it like I stole it from cold over and over then inspect. I will share if anyone is interested. It will be s trimmer not a saw. I have no beater saws left. They are all

now.

 

if you traded you know what for the 4 cycle (or two) youd have some to beat on! Just a thought!

 

If you come the Kevin's GTG next September I'll let you run it.

Oh, side note....I said, back when I linked the vid of Kevin running it after porting, that it had a PM3 chain. Its PS3. Same with the 201. Full chisel green link. I don't know why I keep calling them PM3.

 

First thing I do when I get out of bed is take a leak.....lol

 

Thats a good reason to show up. Wish i was closer.

IIRC they dont make it in yellow label. Had to buy one for my smaller saws couple years ago and learned then. Green label chain is safety/kickback resistant???

 

Picco Super or PS is full chisel, yellow label. I ordered two each fir the 201 and 241 from the local Stihl dealer. 50 DL is the 14" bar and 55 DL for a 16". The green is the reduced kickback yes but it still rips. Same cutters and it will plunge cut unlike some safety chain I've seen in the past.

I believe Bailey's has the PS and will make it any DL count you want.

 

HUH! When i was at the OPE dealer we discovered they didnt make it in the yellow label. It was full chisel but not yellow label. Gonna go check downstairs. BRB.

 

I just got mine in the last couple months.

 

https://www.stihlusa.com/products/chain-saws/saw-chains/piccosuper/

 

This is what i bought at the ope dealer Jan 2021.

 

That's what both came with. I ordered the ones in the above link from my local dealer.

 

but as you can see its green labeled. I cut that label off the box and put it in the ziploc baggie with the chain. I store extra chains that way in my portable toolbox.

 

Yep. Green lable on mine that came on the saws. Yellow non safety that I have 4 of. Purchased actually more like 3-4 months ago.