My summer projects

[redsox985]

I, too, believe nylon doesn't need lube, but I can't see how a light layer of lithium grease would hurt. That stuff is incredibly slick.

 

[r_chez_08]

Ok cool thanks. I don't have any of these fancy lubes like silicone and lithium, only engine, brake and chainsaw oils, a can of chainlube, multipurpous grease and WD40 (not really a lube)

The bushes are hell of a smooth! I wonder how they will handle dirt/dust.

 

[sexyvicta]

all of the nylon type bushes i've fitted to cars have come with a little packet of grease

 

[r_chez_08]

Do you know if it is some fancy grease or multipurpous grease?
I could install a grease nipple but I dont want to drill through the bush if it will make it degrade quicker because they were £15 for the pair!

 

[machinist@large]

Lookin nice! And im pretty sure nylon doesnt require lubrication.

It's most likely UHMW (Ultra High Molecular Weight) plastic. A lot of people just lump anything made out of white plastic as nylon; problem is, nylon isn't very durable. UHMW is; it's also a lot more friendly to machine (one of the reasons I'm thinking it's UHMW).

Either way, neither one of them needs lubrication; if you oil or grease them, it just attracts dirt and causes them to wear faster.

P.S. I hope their not nylon; I just remembered that nylon absorbs water and gets very soft and pliable when saturated.

 

[the-cyborg]

Your not going to degrade the nylon, nor will you hurt anything buy drilling a pilot hole for a zerk fitting.
Nylon will eventually wear like anything else keeping the friction to a minimum by prodigally applying grease only makes sense.

 

[r_chez_08]

I have read up a little on plastic bushes and they are meant to be self lubricating so I wont bother with the zerk fitting. I can just see the grease attracting dirt and wearing the bush faster like machinist@large said.

 

[r_chez_08]

Anyone know where to find deep purple paint? I have found loads of car stuff but it is in 1l tins and I want about 500ml and it also seems really complex to apply.

 

[r_chez_08]

Ok today I cut off my old spindle "C" brackets and installed headlights, which I made almost 2 years ago!
I also ghetto rigged a tank on the bike with cables and tried to run an "A " section belt from the torque converter driver direct to the jackshaft pulley, that is how despirate I am to ride It trashed the belt in about 5 seconds.

I really want the gov of the gx160 on the bike. It appears to rev twice as high with the gov bypassed!

Heres the chillie plant. I like the purple of the peppers and stems and the cream on the leaves!
I cant find paint

Oh and I have managed to break 3 bulbs for the headlights before even using them Luckily they are £1.75 for 4!
Edit: just tried out one headlight in the dark (the other had no bulb) and its really bright!

 

[Doc Sprocket]

Oh yea. ToyStory had a bullet proof kart weighting a few hundred pounds itself, with a 13HP Honda and a 40 series that had similar sized tires. The 40 series shouldn't even flinch.

Still have it, just haven't had time to continue the re-build.
As ran- 300+lbs curb weight, GX340, Comet 40, 18" tires, 4.8:1 ratio.

Notes- I could have stood to gear it down a bit, but the 40 never broke a sweat. 6:1 oughta be sufficient for you. You can go lower if needed. With the engine you have, it might be a good idea.

 

[r_chez_08]

ok, well today I attempted to tension the spring in the driven, to make the low ratio hang on a little longer, so that should help.

 

[r_chez_08]

Quick question- before I weld my front steering brackets on would the steering work better if I brought the front wheels back a bit?

 

[DCProductions]

The shorter the wheelbase, the better the turning (I think that's how it goes), so yes. If it isn't easy to move them back, I wouldn't mess with it.

 

[r_chez_08]

Ok thanks, I welded the front brackets on today. I will probably add a support.
to do:
1. mount pitman arms
2. mount 2nd steering bushing.

One concern I have is that the bushing does not want to slide up and down the bolt I am using easliy, eg. you sit on the kart and the suspension doesnt want to go down. Is there a a way of sorting this?

 

[DCProductions]

Heavy grease. Also realize that this type of suspension might not have any droop based on the spring tension. My buddy had the same problem, but after a ride over bumpy terrain, the bushing loosened up. You don't want it to droop very much when you sit in it; otherwise you will not have very much positive suspension travel.

 

[redsox985]

Instead of heavy grease, I'm a fan of lithium greases. They're very light weight, last longer, and are smoother IMO.

 

[DCProductions]

I meant "grease heavily". I don't really know much about what kind of grease. Hope that wasn't confusing

 

[redsox985]

I meant "grease heavily". I don't really know much about what kind of grease. Hope that wasn't confusing

Oh ok! There are different weights...kinda like oil.

 

[Farmer Mike]

Good job!!! I'm glad to see you are using an arc welder. Practice, practice, practice. I'm constantly on my son to use the arc welder and practice. He always takes the easy way out uses the mig welder.

 

[r_chez_08]

Yeah. Arc welding is hard! I am gettomg the hang of it now though. I may add grease nipples to the bushings to grease them up if you think it will work.
Cheers