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[Andy B]

Other thing is technique, your looking to get an almost continuous length of swarf off so the drill is cutting  all the way.

 .....

ideally, you're looking for two continuous lengths of swarf      Dead easy to grind a drill so that only one side is cutting. 

[Webby the Bear]

Other thing is technique, your looking to get an almost continuous length of swarf off so the drill is cutting  all the way.

Once it statrts to skid without cutting it work hardens the metal and drilling becomes much harder (and can then snap the bit)

so basically a VERY secure hold in the vice and a very steady drill is needed 

WELL......

Two exams, 2 Distinctions today  very very pleased.

There were some reet barsteward questions in the exams but I took my time and worled most of them out hence the good scores (80% and 86% respectively).

First exam was on engine mechanical (inc. diesel), lube and cooling systems. second exam was ignition, fuel, intake and exhaust.

I dont know which ones I got wrong sadly but im now grateful to get them out the way and concentrate on next sections which are chassis, brakes, suspension, tyres... and some other stuff i'm not thinking of.

Will update next week.

Happy Bear.

[Webby the Bear]

....TRANSMISSIONS being the ''other things'' i couldn't think of  quite a biggy to forget  lol

[Shackeng]

Well done Webby, it gives you a nice feeling when you do well in exams. Keep it up.

[Webby the Bear]

Well done Webby, it gives you a nice feeling when you do well in exams. Keep it up.

cheers mate 

[Lazydocker]

Well done bear

[henryd]

Nice one Webby

[Webby the Bear]

Evening boys.

As said before got so far ahead we're just asking to do whatever we want 

SO, me and my buddy decided to remove/replace an entire exhaust off a T reg Toyota Avensis  penetrating oil works well on everything exhaust  mounts, bolts, EVERYTHING 


We then stripped the sections down and cleaned the mating surfaces. One thing I couldn't seem to get a straight answer on was if the sections had gaskets between them. So we got given ''Exhaust Paste''. Is this normal? Or a college bodge temporary repair???


These were awesome bolts to get out... real easy.... these were connecting the down pipe to the next section.... why arent these bolts on throughout 


Then we got this bad boy out  with O2 socket. was expecting it was gonna need a 10ft lead pipe attached to the spanner for leverage.... but weirdly it came straight out. but i put lots of release spray. and a dab of anti-seize when i put it back


four wires indicating it has a heater element 


and finally the teacher breaks out the oscilloscope  going to be honest i understood what it was showing when we tested the o2 sensor (it went up and down 10 times in a second (or 10 secs cant quite remember) but there was a lot of messing around with the settings that confused me. 


took it steady today. did the above, finished putting an M10X1.5 thread in to my special tool, fixed a missfire in a corsa (HT lead 3 with no resistance) and that was about it.

more updates tomorrow hopefully

[Marks DTM Calib]

Kin ell, Fisher Price my first scope.

I would expect 02 sensor to switch about every second

[Webby the Bear]

Kin ell, Fisher Price my first scope.

I would expect 02 sensor to switch about every second

so this is shite then? they said it cost £5k!!! 

yeah that sounds about right.... whats it switching between? rich 'n' lean? 

[Marks DTM Calib]

It switches between oxygen present and oxygen not present 

This can equate to lean/rich

If it had any other brand on the front it would be about a thrid of that price plus a proper scope would be a tenth.

It does do more than a scope function but in the electronics arena, the scope functionailty would be classed as 'not good enough' (as its very much aimed at noddy car electronic jobs as per its design requirement).

[Webby the Bear]

It switches between oxygen present and oxygen not present 

This can equate to lean/rich

If it had any other brand on the front it would be about a thrid of that price plus a proper scope would be a tenth.

It does do more than a scope function but in the electronics arena, the scope functionailty would be classed as 'not good enough' (as its very much aimed at noddy car electronic jobs as per its design requirement).

Yeah I have noticed the price of strap-on stuff is ridonkulous!!!

They bought strap-on 3/8s ratchets for 3 of the kids for doing well.... £80 a piece... could have bought them full tool kits from halfords for that and got them really started!!!!

[Marks DTM Calib]

It switches between oxygen present and oxygen not present 

This can equate to lean/rich

If it had any other brand on the front it would be about a thrid of that price plus a proper scope would be a tenth.

It does do more than a scope function but in the electronics arena, the scope functionailty would be classed as 'not good enough' (as its very much aimed at noddy car electronic jobs as per its design requirement).

Yeah I have noticed the price of strap-on stuff is ridonkulous!!!

They bought strap-on 3/8s ratchets for 3 of the kids for doing well.... £80 a piece... could have bought them full tool kits from halfords for that and got them really started!!!!

I bet they didn't, Snap-On  give bits to the colleges to award as prizes....its to get them hooked and part of the 'snap-on' is best brainwashing procedure 

[Webby the Bear]

It switches between oxygen present and oxygen not present 

This can equate to lean/rich

If it had any other brand on the front it would be about a thrid of that price plus a proper scope would be a tenth.

It does do more than a scope function but in the electronics arena, the scope functionailty would be classed as 'not good enough' (as its very much aimed at noddy car electronic jobs as per its design requirement).

Yeah I have noticed the price of strap-on stuff is ridonkulous!!!

They bought strap-on 3/8s ratchets for 3 of the kids for doing well.... £80 a piece... could have bought them full tool kits from halfords for that and got them really started!!!!

I bet they didn't, Snap-On  give bits to the colleges to award as prizes....its to get them hooked and part of the 'snap-on' is best brainwashing procedure 

wouldnt surprise me 

[biggriffin]

reason snap-on is exspensive is you pay for it on the never-ever, so the agent has to make some profit, also how many new mecanics could afford to go out and spend hundereds of pounds on getting all the tools they need,when they start at a new carrear.
 know i couldnt, tools were bought every were and anywere,including snap-off, mag, etc.
 yes they are over priced,but the agents are offering a service,the prices they charge in spanky land is about 1/4 to 3/4 what you pay here, and no i dont work for them.
 you dont have to buy from them.