Jonathan Kay

Rule of thumb for common materials (as well as MSA regulation, as ECR says) is that thread engagement length should be 1.5x bolt (stud) diameter. At least two turns of thread should be protruding through the nut. Jonathan

Quoting Chris F: ... I always drape some plastic over the engine if leaving it outside for a while as I've fallen fowl for the water in the spark plug holes before...Duck tape? :-) Jonathan

*arrowup*Thanks 1 My memory needs a relay 2 We all need that technical wiki... Jonathan

Thanks, Paul Jonathan

Inspect, clean and reconnect all relevant feeds and earths. What's the battery voltage at rest and when attempting to crank? Jonathan

*arrowup*When I looked at Myles' circuit I thought about using the single relay for both ways of activating the fan. Is there any disadvantage to that? Jonathan

Quoting tomperkins: I've just mocked that up using a relay and a switch that I have that has a built in LED. It seems to be working (the switch activates the fan) but there's one strange thing... The LED is ON when the switch is OFF and the LED then goes OFF when the switch is ON. I'm using piggyback connectors on the rad switch, then wiring the relay as shown in your diagram. From there I'm connecting terminal 86 on the relay to the ON terminal on the switch. The switch then has an OFF terminal that I'm wiring to ground and also a ground terminal on the side that I'm also wiring to ground. 1 Disconnect the LED, then measure voltage to earth on terminal 87 with the override switch open and closed. 2 Your switch sounds more complicated than is needed. That circuit only needs a switch with two terminals. (Single-pole single-throw.) You can probably make the switch you have do that but you'll only use two terminals. Jonathan Edited by - Jonathan Kay on 15 Jun 2014 19:28:23

Have you cleaned and reconnected all the earth connections already? Jonathan

What's the thread length of the nut and the diameter of the stud? Jonathan

You need to look at the instructions or inside the LED lamp unit to see if it already has the current-limiting resistor. (As you fitted it yourself I'll assume it isn't somewhere in the leads to the unit.) Do you have the CBS model number? Jonathan

I've got the 1998 Assembly Guide. Send me a BlatMail if you'd like a copy. Jonathan

Quoting AndrewB: When I got back and checked the wiring diagram I saw a note that the brake lights needed a resistor. The note said something like A) Half Mated with 68 ohm (or something) resister. Could it be I am missing the resistor? Where would it be. Having added an LED brake light should I have put a resistor in that leg? The brake lights do work and seem bright.What's the whole set-up? Original brake lights with incandescent bulbs and the added high-level LEDs? Or all LEDs? Which lampholder/ loom etc did you use for the high-level LEDs? Jonathan

Previous thread with recommendations for City Powdercoaters In Birmingham Jonathan

Quoting Peter De La Mare: Nice, I'll give them a ring.It would be kind to suggest they update their price list. Showing an old date probably deters some potential customers. Jonathan

Quoting Roger Ford: Quoting Myles: No, it's not lead-acid. What is it then? I'd be most surprised if it wasn't. It might have the acid in the form of a gel, or absorbed in fibreglass, but the basic technology is almost certainly lead/acid. This page has a link to the Varley technical sheet which describes them as lead-acid. Absorbed glass mat batteries from Wikipedia. (The acid isn't absorbed into the glass fibres, it just likes to keep the mats wet.) Gel batteries from Wikipedia. Jonathan Edited by - Jonathan Kay on 14 Jun 2014 07:59:14

I've got the diagrams but can't tell which applies to yours. More information, please: how many fuses altogether and have you identified any others, or could you give us the ratings in order. Jonathan

Do you mean Perspex? I thought it broke into jagged edges. Do people really use it for race screens? Jonathan

For comparison purposes only, the first picture is of the original supplied 620R harnesses. I specifically wanted these as I really liked the buckle, and also wanted the font of the Caterham wording to be the same as that on the side of the car (some people call this OCD - I prefer to think of it as attention to detail :-)).If you want real attention to detail, I think you mean typeface rather than font... ;-) Looks great, have fun. Jonathan

I recommend you look at Vespas. Mine's an ET4 125 but I'm keeping it: lovely little device. Have you decided what size wheels you want and how much luggage space you need? Mine takes a helmet and gloves under the seat and a bag with a laptop in the rear box. Jonathan

Quoting oldbutnotslow: However I cant help thinking about the Americans spending lots of $ creating a ball pen that would write in space The Russians just took pencils! Quoting Roger Ford: They didn't, you knowQuoting Domus: Urban myth, bits of broken off pencil floating around would not be welcome. Jonathan

Do people ever use slipping couplings on alternators to avoid the overspeed problem? As used to be done on engine-driven cooling fans. Jonathan

Duplicate post Edited by - Jonathan Kay on 4 Jun 2014 07:50:01

To both of you with the charging problems: can you measure the voltage at the battery under all those conditions and let us know? Thanks Jonathan Edited by - Jonathan Kay on 4 Jun 2014 07:50:12

Front: this leads to this, which says 3/8" x 24. At the price of the fancy ones I'd make sure I ordered the right size by running a bolt or ordinary nipple in first... Jonathan

:-) Jonathan