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Author Topic: Napier 1903 Gordon Bennett  (Read 23366 times)

RhysN

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Re: Napier 1903 Gordon Bennett
« Reply #45 on: 23 March 2020, 03:23:46 pm »
Friend of mine in NZ wanted pics, so here is what I have taken today, partway through minimising the size so I have more room to do stuff on other projects in the garage.

RhysN

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Re: Napier 1903 Gordon Bennett
« Reply #46 on: 23 March 2020, 03:24:21 pm »
More

RhysN

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Re: Napier 1903 Gordon Bennett
« Reply #47 on: 23 March 2020, 03:25:11 pm »
Axle

jim

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Re: Napier 1903 Gordon Bennett
« Reply #48 on: 23 March 2020, 05:16:30 pm »
Looks good Rhys. What sort of glue did you use on the steering wheel to bond the ply to the aluminium. I used epoxy but it was just what I had lying around so no idea if it will hold or not.

RhysN

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Re: Napier 1903 Gordon Bennett
« Reply #49 on: 23 March 2020, 08:00:18 pm »
Composites was my industry for several years, so I followed what we always did, sand through the oxide layer, clean with acetne, when dry wet sand with grey paper and epoxy as the wet layer. It's horrible to do but it worked in the past. Always West system.

RhysN

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Re: Napier 1903 Gordon Bennett
« Reply #50 on: 08 September 2020, 04:30:05 pm »
Well, believe it or not, as Ripleys said I did spend some time on the Napier over the last few weeks, and more today as the next Stretton event appeals to me much more than what has become the norm.
I'm close to going for the first run, so I decided to give the steering a severe test. To save anybody going back to look, the steering column is quite upright, so it needed a steering box of some sort. Everything I looked at was much to costly for my tight ar$%ed budget for cyclekarts, until a huge angle grinder came into my hands. Blown electric engine, but the gearbox looks good. The problem comes in attaching things to the output shaft. It's a bodge , to put it politely. Testing today, and one of the welds parted. "Photography" said I. However I would rather a fail now than in 6 weeks time. No Adrian, it wasn't your weld.
« Last Edit: 08 September 2020, 04:31:43 pm by RhysN »

RhysN

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Re: Napier 1903 Gordon Bennett
« Reply #51 on: 08 September 2020, 04:32:44 pm »
Another pic

Marek.Z.N

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Re: Napier 1903 Gordon Bennett
« Reply #52 on: 08 September 2020, 05:02:37 pm »
looks good. is the tie rod bent due to the cyclekart or because you used a bent tie rod? looks like a good kart

RhysN

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Re: Napier 1903 Gordon Bennett
« Reply #53 on: 08 September 2020, 07:17:43 pm »
The drag link from the steering box to the arm on the front has a bend (as do most full size cars) to give clearance to the wheel on right hand lock.
A side effect of this type of steering is that the first action is that it tries to either push the front axle forward, resolved by having the front spring eyes match the through bolt) or pull it back. That's a bit more difficult because it "swings" the shackle. From what I can discover so far it was usually either ignored, or dealt with by tightening the shackle bolts! Primitive, you bet.

StefanN

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Re: Napier 1903 Gordon Bennett
« Reply #54 on: 09 September 2020, 07:52:13 am »
 Great to see progress on the build.   I’ll be interested to see how you get on with the angle grinder head.   The one I tried had a huge amount of  backlash in the gears.   

RhysN

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Re: Napier 1903 Gordon Bennett
« Reply #55 on: 09 September 2020, 08:32:02 am »
There is exceptionally little backlash, way under 3 degrees which is as small as I can measure. I guess it's because there are a huge number of "teeth" on the main gear and many starts to the input shaft. It's the attachment of an and out shafts that give rise to the difficulties. (The head was from about the biggest angle grinder I have ever seen!

Ron

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Re: Napier 1903 Gordon Bennett
« Reply #56 on: 09 September 2020, 12:50:20 pm »
On a lot of grinders the backlash can be shimmed out where the mesh is tighter than ideal for a grinder but no issue for a low speed steering box.
Always good to see flexibility in the car choice, adds flavour !

RhysN

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Re: Napier 1903 Gordon Bennett
« Reply #57 on: 09 September 2020, 12:57:37 pm »
The actual gearbox in this one when opened was in "like new". The rest of it was pretty grim.

Ron

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Re: Napier 1903 Gordon Bennett
« Reply #58 on: 09 September 2020, 01:39:59 pm »
I love happening across stuff that's broken for its normal application in a way that is perfectly suited to it's new function! , in a project outside the realms of a CK I bought a pitbike engine for its gearbox gears and found the top end to be 100% gacked so ideal for my useage!!

RhysN

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Re: Napier 1903 Gordon Bennett
« Reply #59 on: 09 September 2020, 05:56:27 pm »
I too like to find stuff without paying too much, or preferably nothing. The seat padding is from recycled recycling from Hello Fresh packs, it's a lovely "stuff", sort of fluffy polar fleece which is recycled plastic anyway,
The seat covering is a recycled leather piece from some old car, possibly mid 30s suitably aged, by years not false.
Some of the plywood has seen other uses, packing crates from when we migrated from NZ, some is from equally important crates of our race seats, and the balance was the mahogany marine ply from the trailer I bought (now for sale) which was originally built for a mobility scooter.
I have quite a bit of nice leather I took off a couple of lounge suites being junked by the local pub. A vintage car friend told me that one, the back is usually really good condition leather.