chrismechanic

rain, followed by rain, then more rain, for the last 4 days all day:thumbdown: about 4 o oclock it stops just as it gets dark.. winter sucks..

chris

Sad I know but I grow quite attached to my saws each one a little different so I wouldn't fancy a disposable one as id cry if I had to throw it away.

yer i get attached to my tools as well.

throwing stuff away is not an option for us tool hoarders..

chris

My groundsman turned up for work today in a yellow Fiat 500!

 

Appalling!

 

 

 

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ya, i think you can sack him for that...he will be hair dressing in no time anyway

For all we know, that may be what he's trying to prevent with the pull cord.

yes, your right there, some old 2 strokes with points used to kick back and run backwards breaking the pull starter chord... a mate had a honda trial bike years ago.. it would run backwards too, real funny the first time it happened as my mate was trying to pull a wheelie, he ended up with a fuel tank in the balls

chris

just hope the engine does not kick back while your holding the pull cord

chris.

Definition of a Shih tzu....

 

one with no penguins

my log plie is pathetic compared to yours guys.. donations are accepted

i dont heat my house with logs... just my workshop in the evenings across the winter... brrr, being in a metal shed when its 0 outside is 0 fun.

chris

these idiots use a chain cutter to cut off your cat.

simple way to stop them is to have a few beads of weld put on the outside of the cat leading from the cat to the pipe, the chain cutter will get jammed on the welds, they will struggle to cut the welds too as they are much thicker.

if your car has pre and post cat sensors and you remove the cat usualy it puts the emissions light on with newer vehicles.

chris

This thread should be re titled the engineering / tool room thread !

ya, i totally agree or a projects thread, we can make the first bmw 6cylinder chainsaw haha

ahh so he holes are basicaly reversed...thats a shame..

Hope you weren't spotted:001_smile:

i was hiding in the shed...

HI TEEP what the dog doing down there :lol:thanks jon

its a shih tzu

ok guys i hear you.

anyone want a bottle of slightly used homebase "really good" 2 stroke oil

Oh, so it has all these benefits by removing it. Mine is coming off later.

Thanks for the help guys.

 

 

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i just took mine out

chris

well im not sure what brand of oil i have, or the grade/specs as i bought it from homebase and it dont give any info on the container.

all i can tell you about it is, its red and its oil

chris.

Hope those aren't your feet! Flip flops, socks, and goose-stepping?!

no its my flying buddies daughter, i asked her 3 times to get out of the shot.

she was not listening, too busy dancing around so her feet are there for ever.

chris

I have been wondering about this. I have a combi hedge trimmer, strimmer thing and it says to run 25:1. Whys that and could it be ran at 50:1?

i would say some engines would need more due to the tolerance in the bore.

or maybe what material the piston and liner are made from.

thats is alot of oil... is it old by any chance?

but i dont know for sure, i am more of a 4 stroke guy.

chris

thanks wyk and geoff.... i just removed the spark arrestor and it has started to get clogged allready.. looky..

out of focus but you can see the carbon, i have only used this saw a handful of times. i rarely run it long enough to use a full tank.

which is only 400ml on this saw

great advice guys

thanks.

chris

Eddy is right, adding more oil to the mix actually makes the saw run leaner, because the fuel to air ratio is changed, ie, less fuel, as it is replaced with more oil (which is not combusted).

 

Sounds a£ about face, but it is the truth!

ok so.. i only mix up 500ml of fuel at a time, so am i correct to add 10ml of 2 stroke oil to get a 1:50 mix?

thanks,

chris

i trust the spark screen is the mesh i can see through the silencer opening.

chris.

Cheers bud, will get pics up once it's made

 

 

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cool, ill look forward to that..

chris

hey guys, im my saw manual it gives 2 expamles for 1:50 and 1:33 mix.

on the fuel filler cap it says 1:40, i allways like 2 strokes to be a tad on the rich side.

so, at the moment i am mixing the fuel with the red type 2 stroke oil a tad over 1:40.

what ratio would be best? saw is a cs360t mcculloch.

thanks..

chris

Ally billet arrived, cheers Chris! What's the postage cost?

 

 

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ahh its ok mate, it was just a few pounds, forget it.

you helped me, so consider it me helping you

thanks..

chris

yes, i would say it's a bit of ring or spark plug has made those marks.

the damage could be removed on the mill using the rotary table to spin the head around, just on that flat face inside the combustion chamber.

that would lower the compression ratio too by a small amount, but tbh you dont want to lower it by much or you'll end up with a poorly running bike .

so when you say angle are we talking the dished part that leads up to the spark plug hole, apart from that part of the head the rest looks flat from the pic.

you could have a shim made to fit inbetween the cylinder and the head, that would also work and if it lowered the compression too much could easily be removed.

here is a very small 2 stroke head i did some external work on... the guy just wanted the outside cleaning up after crash damage

before..

and after

chris

At least the bar will last a fair few chains

 

 

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more like 30 or 40 the cutting teeth on the chain would be harder than the links, the links are probably just mild steel.

chris

nice work there Python

i use a C.K size 2 hatchet for splitting.

chris