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Messages - Kevin Wood

33271
Yeah, a little bit of P*ss taking going on there, methinks, and the seller deserves it.

I'm thinking about asking him if he can do me a little red pointer than I can stick pointing to the "F" on my fuel gauge cos this filling up with petrol business is a bit expensive!

Kevin

33272
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Q:  Will this work with my convertible? Aug-17-07  

Give me strength...

Kevin

33273
I've seen it all now  ::)

Something even less useful than a real sunroof. Still, I guess it won't ever leak!

Kevin

33274
Well, I've always been one to tinker with things, cars included. I am not able to accept that something works. I have to take it apart and figure out how it works and why it was designed the way it was. I'll make it work better if I can. As soon as something breaks - well, that's an excuse to take it apart. :y

I've always done my own car servicing and maintenance but hankered for more involvement. My car didn't break often enough to satisfy my curiosity! Then, in the halcyon days between graduating from university with an electronics degree and settling down I found myself able to spend every evening and weekend in the garage if I so desired. I set about building one of these:



I learnt an awful lot from this project, and when I think back to the way my mechanical skills were before I took it on, finishing it was quite an achievement!

That was just the start, however. I have since stripped down and rebuilt the engine. I ditched the carburettors in favour of a Megasquirt fuel injection system, soldered up the ECU, wrote some of the firmware as, at the time, it didn't do what I wanted, and then mapped the fuel and ignition systems on the public roads using a wideband lambda sensor.

I haven't done a great deal with it recently, except enjoy driving it, but I've certainly got it to thank for the majority of my car knowledge.

Kevin

33275
General Discussion Area / Re: Locking wheel nuts - no Key!!
« on: 21 August 2007, 21:02:18 »
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That way, they don't even think about checking the tracking etc!

Ooh... Don't start me off on that one >:(

Kevin

33276
General Discussion Area / Re: Locking wheel nuts - no Key!!
« on: 21 August 2007, 09:33:29 »
Problem is, they do them up with a windy gun, THEN check with a torque wrench, which immediately goes "click" so that's OK, then. If they knew how a torque wrench, or even a nut and bolt, for that matter, works it would be obvious to them that if they didn't have to tighten it with the torque wrench it was already overtightened.  >:(

Kevin

33277
General Discussion Area / Re: Locking wheel nuts - no Key!!
« on: 20 August 2007, 23:20:17 »
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:-[ and there i was feeling really pleased with myself  :(

was quoted 50 a wheel.................. [smiley=shocked.gif]

rich

How much  :o

Yep, me too. Hence the option of mullering a couple of 1/2" drive sockets was a no-brainer!

Kevin

33278
General Discussion Area / Re: Locking wheel nuts - no Key!!
« on: 20 August 2007, 21:12:04 »
Yep. Been there, done that, thanks to numpty tyre fitters who left the key on my boot lid and sent me on my way ::)

Needed a replacement socket to do the last one but 2 old sockets beats some of the prices I was quoted to get them off.

Don't let a tyre outfit overtighten them either. Happened to me before as well. Thought wheel nuts were 'kin tight so I loosened one of the non-locking ones. Took 200ft.lb. Figured it must have siezed. Tightened to same position. 200 ft.lb. :o Locking key was already fubar when I looked at it. Got one nut off before it stopped playing. Took to k**k f*t. in desperation, as they were closest and I had a puncture. Offered to try with breaker bar (already done that, thanks). Sorry, mate. Nothing we can do. Took to independant tryre fitter. Couple of minutes with a windy wrench and 2 more were off. Turn up compressor, try again, hit with sammy, try again. Heat with the oxy torch, more windy wrench and off it came. Total cost 10 quid  :y

Kevin

33279
General Discussion Area / Re: Head Experts - Non VX
« on: 21 August 2007, 12:42:16 »
If it's been running lean enough to hole a piston the exhaust valves and seats will have taken a bit of punishment, so I'd be rebuilding the head and lapping the valves back in after a careful check at a minimum.

.. assuming the yet-to-be-found gaping hole in no.4 is not in the head, of course.  ;)

Thinking about it, the pocketing in the piston crowns looks odd. Have the pistons been pocketed for 2 different valve arrangements to save money or are some of those marks the result of valves bouncing off pistons?

Kevin

33280
General Discussion Area / Re: Whats the best way to.....
« on: 21 August 2007, 14:29:55 »
Ahh, OK.  A mains TV running from an inverter is a different proposition. Much more thirsty.

Kevin

33281
General Discussion Area / Re: Whats the best way to.....
« on: 21 August 2007, 12:45:42 »
Good point. Or take your battery charger along and ask them if you can plug it in somewhere to charge it up.

I'd be surprised if a 110ah battery didn't last you the whole holiday though.

Kevin

33282
General Discussion Area / Re: Whats the best way to.....
« on: 21 August 2007, 12:28:24 »
I'd hope a 110 ah battery would run it for a whole week! If it's a 12v powered TV rather than a mains set on an inverter it should only take 1 or 2 amps at 12 volts.

Kevin

33283
General Discussion Area / Re: Whats the best way to.....
« on: 20 August 2007, 16:31:38 »
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The capacity of the battery doesn't really come into it.
.. within reason, of course. If you set off at the start of every journey with a completely flat 110 ah battery in the boot I think the alternator would get the hump, but it's more down to how much charge you're going to be taking out of the battery than its capacity, and that depends on the application.

Kevin

33284
General Discussion Area / Re: Whats the best way to.....
« on: 20 August 2007, 14:38:38 »
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Wouldn't the alt be overloaded with charging a 90-110Ah battery...?

The capacity of the battery doesn't really come into it. The alternator should current limit at a safe level so the more battery capacity you connect across it the longer it would take to charge it. Furthermore, if you use a caravan charging relay you'll only switch in the second battery when the main vehicle battery has fully charged and the alternator is powering the loads on the car with capacity to spare.

Kevin

33285
General Discussion Area / Re: Whats the best way to.....
« on: 20 August 2007, 10:23:31 »
Depends if the battery is going to be permanently mounted to the car or if it's just a temporary arrangement and also how quick you need it to charge. In addition, if there's going to be load on it during charging.  For a permanent installation I would run a decent, thick cable from the car battery through a fuse to the rear of the car, with a caravan split charge relay or similar to enable charge to the second battery when the car battery volts rise.

You want to drop as few volts in this cable as possible because if there's too much drop the battery won't reach a fully charged state. If you need to draw load from the battery during charging it might be wise to take this from the end of this cable at the front of the car to minimise voltage drop at the battery end.

For a temporary set up, something to plug into the cigar lighter may do the job, depending on the voltage at that socket with the other loads in the car drawing current. You might find the lighter socket delivers insufficient voltage (less than 13.8 and the battery won't reach full charge) to charge the battery. You may well find that the resistance in the circuit is enough to prevent the current getting excessive, since the battery "looks" like a voltage source of up to 12.5v with an internal resistance. This means that you're only dropping a volt or so across the resistance of the circuit instead of the full 12 volts - unless you start with a totally flat battery, of course.

If it's a temporary lashup and you've got an inverter and a battery charger handy it might be the easiest solution. At least you know the charge to the battery will be under control.

Kevin

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