How bout a go cart?

Could probably machine a cam from a steel round. Since the RPM is low the inertial force of the valves would be low you might get away with tired valve springs and plain steel cam. Other wise simply hardening it with a rich oxy might do the trick. COuld probably be done on a 4 axis cnc mill. If you got excited you could have it hard chromed. Just ideas.

Otherwise what about one way valves in the valve holes? If you're taking all the rocker gear off you could even drill right through.

im still playing with the idea of a gokart and i have got some ideas on the drive line aswell ,i could use an A12 ,rigid mounted to the chassis and mounted sideways ,with a bellhousing mounted to the motor so the cluth can still be used ,then use a bearing /mount thiat i would then weld to the frame and run a splined rod through it ad weld a sprocket onto it and then slot the splined end into the clutch ,then just run a chain to the bavck wheels

or i could use the motor gearbox and standard diff ,but have the diff mounted straight up to the back of the gear box via the tail shaft yoke and diff yoke ,so there wouldnt be a tailshaft ,just the yokes
and as for steering , i could use a 1000 front end haha ,or i could buy the whole front end from my mates gokart shop

hhmm it could work ,and maybe turbo it !

Quote:

If I pull off all the rocker gear, then there is nothing to control the existing valves, they will just stay shut. If you pull the valves out, then I might as well just get a lump of steel made up with the one way valves fitted.


If I use the existing head system with a modified cam, then I have an intake/exhast ready to go. Just need to plumb the exhaust manifild to the reciever tank somehow.
Wonder how much the custom cam would cost to have made up. I would think hardening of some sort would be the go if i do down that path.

Any Perth boys know of a place that wouldnt laught at me and take my quesitons seriously?

Just wondering on the compressor deal.

Since its not running for long normally. I guess 1 min at a time with longer breaks in between depending on the size of the reciever tank.

Would I need to worry about runing any coolant/water?
I obviously need oil to lube the bottom end up.
If I use a custom head (ie block of metal with valves), there is no need to lift oil to the top of the engine as there is no rocker gear to worry about.
No push rods.

Could I pull the oil pump and water pump off. Fling the raditaor and rely on oil cooling the bottom en enough? Maybe run a small oil cooler off to one side? if required?

Found this link. I knew that I wasnt that original.
Datsun A series compressor

homemade aircompressor

also found this thread. Its tractor driven though. I want to use an electric motor to drive mine for noise reasons.

This guys just lightens off the intake valves so that they open when the piston comes down (vacumn) and push the air from the spark plug holes. He does say though that it doesent push out huge volumes as the valves bounce around at high rpms.

Driving it from the gearbox is differnt though. he gets the options of gears to run at the right speed, although correct selection pullys is possibly a better option since you dont want to change the setup once its done.

reuben i have an A12 hear if you want it to experiment with ? thats if mike doesnt want it but it would be suited more to you as it isnt in any way shape or form good enough to be a runner or to hot up

mike did you still want it for parts ??

cheers for the offer and I would take you up n that, but I cant really take on any more stuff at this stage. I have already used up all my free storage options. If it goes to mike, it will possibly end up with me if I ask mike nicely.

As soon as the shed is up, the firwood processor is first off the ranks, then the compressor.

Any ideas on how big the electric motor would need to be to turn an a series? (geared down of course)
1hp, 3hp? Its a pity it needs to be single phase since I can get my hands on some sizeable 3 Phase motors for nix...

Hi mate this should help you with your conversion of single to 3 phase power supply to run your 3 phase electric motors :D


http://homemetalshopclub.org/projects/phconv/phconv.html

very cool thanks for that. Ill do some more research on that and see how hard it is. I know that you can buy prefabricated 1 phase -> 3 phase convertors, (phasechange convertorsphasechanger website
but when I quoted them up, they are pretty pricey.

The plans Look pretty complicated, (im not a sparky of any sort) and if I can aviod using 3 phase I will, but "cheap" 3 phase motors may push me into that direction.