All small engines should run 3600 rpm

tomtucson

tomtucson

New member
I think. True? That means a no load speed of 3800 +-.
 
3600 no load.
 
When the engines talk to me they say "a little faster - I want to run free at 3600
 
I just think they run better at 3600, the spec's are always for 3600. If you listen they say, I mean they sound better I think.
 
The specs are at 3600, and if you need the cooling, like Tom and I do, you want to make sure that they are running wide open.

I have to rebuild a briggs engine a week, because they can't handle the heat. It always fails in the same spot, right behind the starter motor, so I am thinking that it is nothing more than a design error.
 
Scott Stone said:
The specs are at 3600, and if you need the cooling, like Tom and I do, you want to make sure that they are running wide open.

I have to rebuild a briggs engine a week, because they can't handle the heat. It always fails in the same spot, right behind the starter motor, so I am thinking that it is nothing more than a design error.
Click to expand...
I was looking at my old vanguard, it looks like the rotor(?) fan is supposed to force air through the heat shields. I'm thinking an air coold engine shouldn't be closed in. If I rebuild this I'm going to leave off the shrouds and see. People had the same problems with chrome engine accessories on Harleys. I forgot to question. Is the flywheel/pistons lubricated by splash? If this is the case then higher rpms make sense. Same thing with Harley, not enough oil circulation from low rpms.
 
I run my 35 hp briggs at idle for probably 85% of its 2300 hour life so far. I only turn it up when I run 2 guns or do a job that needs psi or when I throw the 15+ size nozzle in. My burner is run off an inverter generator, never been a fan of generators attached to engines.

I don't have to worry about the heat most times, although I have run this way year around with almost no problems. Next engine will be a diesel water cooled though, then I won't have to worry about the cooling.
 
You don't live in Arizona. We regularly get temperatures over 100 degrees Fahrenheit 5 months of the year and work up to 120 degrees.
 
Scott Stone said:
The specs are at 3600, and if you need the cooling, like Tom and I do, you want to make sure that they are running wide open.

I have to rebuild a briggs engine a week, because they can't handle the heat. It always fails in the same spot, right behind the starter motor, so I am thinking that it is nothing more than a design error.
Click to expand...

On new equipment do you still buy Briggs?
 
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