DuttonOwners

Dutton Kit Cars and their owners

For those days when your parts just can't arrive quick enough, for sunny days when the transit just isn't 'fun'...

Project X...

Coming soon to a shed near me.

1997 DOHC, weber TC, MT75 box and Sierra fixed 3.72 diff in a Phaeton 3/4 hybrid.

I did some playing on gear calc and the theoretical stats look like this.

Gear   Mph per 1000 RPM  Mph @4000 RPM Mph @6000 RPM
1 4.91 20 29
2 9.17 37 55
3 14.24 57 85
4 19.08 76 114
5 23.27 93 (buttock clench) 140 (new pants)

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Comment by Steve Kerswell yesterday

I have just found a remote that may give an idea or improvement, will post pictures when this thing lets me :-)

Comment by Adrian Southgate on Wednesday

Bit more done tonight but like a womble I forgot my phone so no pics.

MK2 gear stick now functions in all six gear positions but there is a little play in the selector / 'made up bit' joint that needs a thin rubber or polyurethane sleeve just to help keep the rattles at bay. Its adjustable both at the pivot rose joint and the bottom clevis fork which is good because a 1 mm washer makes all the difference between being able to select gears and not. I think 2 or 3 may end up being used in the end. 

The inner rod is only M8 threaded 316 stainless so really needs the outer tube to be one bit and also threaded on to help add rigidity. If I can find the right spacer bushes then I may go for a mk3 using M10 and dispense with the misalignment bushes currently being used. A lathe would make things so much simpler but as I don't currently own one, welded bits will have to suffice. The bracket will need bracing and may also need the two lower mountings adding to stop flex. All in all i'm quite pleased that it now functions, but still got to finish the rest of engine and gearbox mounts before I can test it from a seated position so not really in a position to declare it a complete success. It would be handy to create that reverse lockout too but that may have to be incorporated into the shift gate.

Comment by Adrian Southgate on Sunday

Well that didn't pan out quite the way I wanted.

'Bit' made and fitted, everything nipped up and third - fourth is perfect... sadly all the other gears are out of range.

The pivot point for the stick is too high so as you try to move it sideways in neutral the mechanism binds on itself. I have started on the mk2 but may need another M12 tube nut as the first one is welded into the bracket and it's going to be awkward to remove and re-use it. I may be able to rotate the bracket through 180 degrees and reweld the mounting points though, that will get the existing M12 tube nut to about 30-40 degrees from horizontal and allow the pivot point to be moved down and back, more in line with the centre of rotation. I have already made a new 'link bit' which is totally different, but it needs to be ground to shape. The new link bit is a different diameter of tube which may need a cap welding on and a rubber sleeve between it and the selector knob to help stop vibration. 

I can't work out how the spyder engineering one works now, thought I had it sussed but it didn't work.

Spyder shift 01

I Don't see how that assembly can rotate the selector as the pivot point is out of line.

Comment by Adrian Southgate on Sunday

The 'workshop' is primarily for doing those little fiddly jobs that we currently undertake in the street outside, bulbs, wipers, batteries etc, awful jobs to do when it's raining. Having the space to work on a toy is just a bonus. I spend most of my time processing stock anyway so it's not like i'm front of house unless someone is on a day off. Once that stock has been processed, moved or moved on i'll have a bit of time.

Comment by Daryl Heasman on Sunday

Bad move Ade ,take your eye off the ball and things go wrong , work and play don't mix

Comment by Adrian Southgate on Sunday

Things will accelerate shortly as the car will be the first occupant of our new 'workshop' in the basement of the shop. Means I can spend time during the day working on the car rather than moving old brake pads from one place to another :( Speaking of which, if anyone out there runs a late 80's or 90's car then let me know. I will be 'job lot' selling some old redundant stock for which I will get peanuts per item. If a few find their way to good homes during the process that i'll be happy with a deal + cost of postage. I may be able to upload a list at some point in the near future to make life easier. I'm off to the unit to make that last fiddly bit in a while, quite excited to see if my theories work in practice.

Comment by James Doulton on November 11, 2017 at 22:42

Getting there, Ade.

Comment by Big Vern on November 9, 2017 at 19:56

MX5 doesn't have a gearbox mount as the gearbox connects directly to the PPF. I have seen many fabricated brackets that mount to the bottom of the box and match up to the Ford gearbox mount - it goes where the small stiffener bracket connects between the box and the PPF I have some pictures on my computor at work I'll did them out tomoz

Comment by Steve Kerswell on November 9, 2017 at 12:58

Thanks Dave, I'll hold off throwing a tantrum then :-)

Comment by Dave Price on November 9, 2017 at 12:39

Steve, your comment is very timely.  I have a day off tomorrow so in tend to try and finish off the gearbox mount tomorrow.  Will post a photo.

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