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LairdScooby

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Everything posted by LairdScooby

  1. Sentence (as in marriage isn't a word but a sentence)
  2. Syrup of figs = wig (wigs) in Rhyming Slang John as in "Elton John wears a syrup".
  3. From the article John : If you've ever tried to start a car that's already running you'll have discovered that it makes a hideous crunching sound as the starter pinion tries to engage with a rapidly spinning flywheel! As a result single solenoid Stop-Start systems can pause the starting process and prevent the engine from starting until it's fully stopped – this isn't ideal as the car doesn't start 'on demand' but a moment later. A tandem solenoid works by spinning up the starter pinion to synchronise it with the flywheel, then the second solenoid seamlessly engages the gear. Highlighted and underlined the relevant bit - surely a contradiction in terms? The idea is to prevent the graunching of the starter pinion on a turning flywheel/ring gear so by spinning a starter pinion up and engaging with a ring gear (moving or not) the effect would be the same as trying to engage a stationary pinion with a spinning ring gear. Maybe it's just that haynes haven't explained it all that well but either way, a solenoid has a hefty current draw and i'm struggling to reconcile the concept of an excessive current draw with the need to start 50uS quicker than the conventional arrangement. More research is needed i think! *** EDIT *** Having done a bit more digging, it appears that is exactly how the sytem works. I'm much more used to starters that turn the engine at 250-300rpm to start them, it seems the newer motors are capable of spinning much faster to enable meshing with the ring gear at the same speed but it must be a very critical line of getting the two speeds matched! 😮 Also discovered the Permanently Engaged starter which presumably has a starter clutch inside to connect the starter pinion to the motor. Definitely Marmite!
  4. Errr, i beg to differ - pre-engaged starters have been around for donkeys years and holding the pinion in so it was "ready" to restart would cause a considerable battery drain (~30A usually for hold-in current) which would flatten the battery fairly quickly. Also because of how the starter solenoid operates, it pulls the pinon into engagement and then makes the circuit but there are no half-measures - it pulls in and then the contacts are automatically closed so the motor operates.
  5. Holy thread resurrection Batman! A year on, i finally got the Adamesh rer silencers fitted today! Ordered them back in May, arrived in June 😮 and life has got in the way of living since! Went to fit them last week only to discover they'd sent a pair of S Type R rear silencers! All fairness to Adamesh, they sent a replacement pair out and have arranged to collect the wrong pair. I need to fabricate a new bracket for the NS hanger (that will be another thread though) but the (correct) silencers fitted easily and sound great - exactly what i was after in fact! Nice burble on idle, slight rasp with a louder growl on acceleration and just as quiet cruising. That said my test drive didn't really get up to real cruising speeds but knowing how it sounds at various speeds, fairly certain at cruising speeds it will be quiet still. I now have a pair of standard rear silencers, free to a good home. They're 24 years old and still look like new amazingly!
  6. Welcome aboard Nigel! Hope you enjoy your X Type, i considered the estate version recently but ended up with a Honda CR-V instead! Probably just as well or my neighbours would start calling me John Prescott (Two Jags)!
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