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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Zanzibar effect
Interesting one about multi-meters in a BL service instruction booklet.
To set the TPS (throttle position sensor) as fitted to early (1980) Rover V8 Lucas injection. It is a large carbon pot sitting across 5v (nearly) and provides a variable voltage out by throttle position. Quite a chunky device with twin wipers, so a lot more butch than the average volume control. It is adjustable, and the original way to set was to use a BL special tool. You set it to null a couple of LEDs. No doubt cost a fortune. The later Land Rover guide gives a method using a volt meter. Pic shows a DVM - rather than an AVO 8, etc. You connect to output and ground and set it to 0.325v +/-0.025v. It's the note below which is interesting:- CAUTION: The following adjustment must be made using a voltmeter set to a maximum scale of not more than 10v. If a voltmeter of more than 10 volt scale is used the potentiometer will be irreparably damaged. Try as I might, I ain't got a fooking clue what they're on about. ;-) -- *The hardness of the butter is proportional to the softness of the bread * Dave Plowman London SW To e-mail, change noise into sound. |
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