I recently bought a Echo PB-755 Backpack Blower to blow leaves in my
I am very puzzled by it. It is a 2 stroke engine. Takes 50:1 oil.
There is no separate tank/port/opening for engine oil.
The manual has not a single word mention of engine oil (like 10w30 or
So, all indications are that this engine needs no oil.
I can hardly believe this as all gas engines I have seen so far needed
Is my conclusion that the engine needs no oil, correct?
you're kidding right? Are you thirteen? Have you never owned a 2 stroke
engine before? The oil in the gas passes through the crankcase and does the
lubricating before it goes into the combustion chamber.
I see that you have the explanation how they work. I apologize for
the 'rtfm' comment. Thinking back I was in the same position when
someone told me that diesel engines don't have spark plugs...well, not
after they are running at least.
link me to any reference to a large diesel engine with glow plugs.
as for the toys:
5.7 Olds conversion
6.2 chevy truck monstrosity
duramax diesel chevy uses. (not sure of the size)
And any other diesel engine you can come up with that has glow plugs.
Well, guess that's one definition. Not a very useful, one, but one
Of current production, don't know directly other than the JD 5-cylinder
used in their utility tractors (up to roughly 50 hp I'm guessing,
maybe?) That they have been replaced w/ direct start w/ usually ether
injection combined w/ block heaters for cold weather doesn't mean they
weren't a significant alternative until fairly recently (10-15 years or
It's a fairly useful definition. Real diesels don't have precombustion
chambers and therefore don't NEED any glow plugs. The precombustion chamber
makes for a quieter engine. And Gawd knows we wouldn't want to hear the
engine running nowadays.
I don't know what it's of use for is the deal. Torque, hp, fuel
consumption, etc., are useful categorizations but I don't see the deal
on some artificial "real" vis a vis "not real".
And, certainly, after 12-14 hour days on tractor or combine in the
field, any more diesel noise than mandatory is certainly not anything I
count as a blessing...
Sorry, "big rig engines" (as you call them) don't have cylinder heaters,
glow plugs, or any thing like that. What they do use on occasion is either
assist on the intake.
Direct injection diesels don't as a rule have a problem starting cold.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.