Briggs & Stratton IC Engine Pt2 - Head Shaving and Cold Start

Since it is a damaged motor I figured it would be worth experimenting with it, my dad suggested shaving the head down as far as I can on the lathe, and so far it worked!
if I go much lower I will have the valves hitting the head as they open!

Category:

Science & Technology

Tags:

• Briggs
• and
• stratton
• I/C
• engine
• horizontal
• shaft
• cold
• start
• gas
• single
• cylinder
• shaved
• head
• machine
• lathe
• turret
• capstan
• facing
• shave
• high
• compression
• lawn
• mower
• industrial
• 4Hp
• 5Hp

[BowHunt1229]

the stonehenge people are looking for their lathe....

[Aussie50]

@BowHunt1229 that would be really cool if it was :D, this one was made in Czechoslovakia as the Nazi's were on the march (1938)

[itscool1968]

shoudnat that gear box have more oil in it?

[Aussie50]

@itscool1968 the engine gearbox was just over full when I got it.

unless you mean the lathe headstock?, its a little low (1/4" down on the sight glass) but I don;t have any of the right oil for it at the moment, if the level was below the sight glass it would be dangerous.

[itscool1968]

@Aussie50 yes i meant the lathe .

i thought most of the gears should be covered with oil while turning

[Aussie50]

@itscool1968 its all splash lube in these, fill it too high and it just comes out around the gear levers.

the gears at the back did appear a bit dry tho, I'll look into why that was.

[ibuiltmineo1oo]

That is a huge chuck to get a whole head in there!

[mapukmapuk]

yea i know this shit when you dont have pull start

[GFVagent007]

@DamnStraightM35A2 It was a little tricky, but not impossible to get it close enough for the gasket to seal. The big thing is not to cut too fast and use some oil or the aluminum clogs the file and the packed metal gouges the surface. The governors reference crank speed either by an air vane or flyweights and is not affected. The valves did not interfere, but they can if you cut enough material off. The more material removed, the higher the power boost. Valve reliefs could be done on a mill

[DamnStraightM35A2]

@GFVagent007 Was it hard to keep the surface of the head flat using a file? Did the valves clear the head? And on a mower with a governor did it still run at about the same speed with no issues?

[soverato3]

broken rings can give big problems

[CorsaAGSi]

I taped sandpaper on a mirror and shaved some off that way.

Works good to.

[MadSmokerBBQ]

cool!!!

[rchez09]

I am jealous of your stuff! All those engines and a metal lathe :)