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Serial Vitesse racer
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JohnD's Achievements

Elite User (10/10)
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The FBHVC is asking classic owners to complete a survey, about what cars you own and what you do with them: FBHVC Federation National Historic Vehicle Survey 2025 | Federation of British Historic Vehicle Clubs Seems to me to be a good idea and harmless. JOhn
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Theoretical question - how to plumb twin fuel tanks?
JohnD replied to JohnD's topic in General Technical Discussions
No argument. It was oxygen tank no.TWO that exploded on Apollo 13! John -
Theoretical question - how to plumb twin fuel tanks?
JohnD replied to JohnD's topic in General Technical Discussions
Thanks again, Hamish! I thought I knew all the GT40 websites, but have missed this one. Looks interesting, contemporary and with lots of builders!. John -
Theoretical question - how to plumb twin fuel tanks?
JohnD replied to JohnD's topic in General Technical Discussions
Thank you, Hamish! Never seen those pics, where are they from, please? But they describe why I don't want sill tanks or a balance tube! And would the pump draw fuel equally? The flow resistance from either side will not be the same, even if the hoses are equal length. Paul, us simians think alike! John -
Theoretical question - how to plumb twin fuel tanks?
JohnD replied to JohnD's topic in General Technical Discussions
It's a GT40! Low as low is! -
Theoretical question - how to plumb twin fuel tanks?
JohnD replied to JohnD's topic in General Technical Discussions
Yes, but as I said previously, a balance tube under the car is just what I don't want. Too vulnerable. At the start of this thread, I mentioned the pedal box. This took a lot longer to design and fabricate than expected, as the best position for the pdeasl put the master cylinders right in the middle of a main strut of the space frame. Here's my solution: The two brackets above are for the remote reservoirs. John -
Theoretical question - how to plumb twin fuel tanks?
JohnD replied to JohnD's topic in General Technical Discussions
Thank you, Morgan! I've had a more recent discussion on here, with Paul who runs a Jaguar with twin tanks, some models of which had a solenoid changeover valve, before a single pump. See: Jaguar XJ6 Series 1 - Page 4 - Other Marques - Sideways Technologies , so I have a plan. You suggested a balance tube above the tanks. That would require the tube to be full of fuel at all times to maintain the syphon, wouldn't it? A low tank and some hearty cornering would uncover the bottom end of one or the other, and lose the syphon. wouldn't it? Or had you something else in mind? John -
Wow! VERY nice!
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Just spent a great weekend, watching Grandson No.1 play hockey! Last year, I reported their team's success in the Under-11 North Western Championship, and now he's in the Under-13s team. This time, in a round-robin tournament for Cheshire clubs, they made it to the semi-finals, and hoped at least to be in the Final, as both Final teams go through the North Western contest and if they do well there to the Nationals. But through some odd and ill-judged seeding, their semi-final was against the other Cheshire contender for the Nationals, that they beat last year, so this was the Final that should have been! And as in all good tragedies, they lost by the only goal scored! Much disappointment, which we all took like the jealous grandparents that we are. Just wait, Chester, we'll get you next year! John
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My new car, another Golf GTE...
JohnD replied to mpbarrett's topic in Members Cars and Project threads
Glad you like it, because an electric car, even a hybrid, that goes flat when you plug it in to recharge, sounds a bit - well - dud! -
A design for a differential bearer
JohnD replied to JohnD's topic in General Engineering / Workshop Discussions
Yes, to both, Colin! But the output and input flanges? I have a small, low torque ( up to 40 lbs.ft) wrench and i can't get that in. There must have been 'special tools' on the production line! -
A design for a differential bearer
JohnD replied to JohnD's topic in General Engineering / Workshop Discussions
Problem with replacing is that while all the bolts come with specified torques, there's no room to get a torque wrench in there! Hohum, just heave on it until you can't move it anymore! And why Triumph never fitted drain plugs - well, I know, to save money - but now they are 50+ years old they really should get them. -
It was pointed out to.me that the telephone keyboard, that replaced the dial, has the numbers in reverse order to the numeric keys that are on most PC keyboards. Asvthey say, different strokes!
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Your General Studies paper? Was this for GCSE, where the 'S' stood for Stringfellow?
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I've just changed my differential. Balancing it on the jack, to lower or lift the new one back in, is fraught with danger! For your fingers, head, and as you need the whole car quite high off the floor, to the diff itself if it drops. So I built a bearer for it, that would provide a flat surface for the jack saddle. I built it from scrap wood, ad used a large cable tie to hold the diff onto the bearer. Photos and a sketch plan below. The width of the base is irrelevant, so I've only included those that engage with the rear housing (mine has a drain plug) and either side of the diff mounting plate. Hope it's useful! John