1968 Austin 1100 Mk1 (Take 2)

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Eddie Honda
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Re: 1968 Austin 1100 Mk1 (Take 2)

Post by Eddie Honda »

I had the pleasure of learning in one of these (in rotation with an auto Volvo 240 estate and a 5sp manual MK3 Fiesta) and could manage reasonably well to double declutch into first on the move (for those hilly give way junctions). This proved useful as my first car ended up being a Citroen Dyane 6 which also has a crash first.

Come to think of it the Regal, 2x Rebels also had no synchromesh on first. I'm not even that old either!
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Re: 1968 Austin 1100 Mk1 (Take 2)

Post by Eddie Honda »

mercrocker wrote: Sun Aug 02, 2020 10:59 pm Yes, that's right only a few later versions got a servo
Plah?

Don't think Herbert or Billy models ever had 'em.
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Re: 1968 Austin 1100 Mk1 (Take 2)

Post by Eddie Honda »

No room at the inn nor do I want a boot in the bag from Mrs Honda.

Whatever horrors lie beneath, it doesn't seem too salty for a bag and a half.

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https://www.donedeal.ie/vintagecars-for ... r/25538227
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Re: 1968 Austin 1100 Mk1 (Take 2)

Post by SiC »

Eddie Honda wrote: Sun Aug 02, 2020 11:30 pm No room at the inn nor do I want a boot in the bag from Mrs Honda.

Whatever horrors lie beneath, it doesn't seem too salty for a bag and a half.

https://www.donedeal.ie/vintagecars-for ... r/25538227
Doesn't look too bad especially given its the MG version with its powerhouse of an A-series..

I don't particuarly like the look of the Vaden Plas or MG ADO16s grilles though.
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Re: 1968 Austin 1100 Mk1 (Take 2)

Post by Eddie Honda »

TWIN CARB 1300 POWAH!

It'll go nearly as fast a Sherpa sports and piss all over it on the corners.
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Re: 1968 Austin 1100 Mk1 (Take 2)

Post by SiC »

Eddie Honda wrote: Sun Aug 02, 2020 11:34 pm TWIN CARB 1300 POWAH!
Not just that, I think they have the better head on too?
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Re: 1968 Austin 1100 Mk1 (Take 2)

Post by Eddie Honda »

Think they did. They certainly were 'Safety Fast'
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Re: 1968 Austin 1100 Mk1 (Take 2)

Post by mercrocker »

Eddie Honda wrote: Sun Aug 02, 2020 11:27 pm
mercrocker wrote: Sun Aug 02, 2020 10:59 pm Yes, that's right only a few later versions got a servo
Plah?

Don't think Herbert or Billy models ever had 'em.

Late VDP I think plus 1300GT?
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Re: 1968 Austin 1100 Mk1 (Take 2)

Post by Sloth »

i had the aussie version with teh 1500 ohc maxi engine and 5 speed. i had the b.l special tuning twin carb kit and a mild port and polish. the thing flew. like off the end of the strip speedo. the front subframe was different and beefier as was the shell. was a riot. ex wife hated it. too bumpy and loud.
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Re: 1968 Austin 1100 Mk1 (Take 2)

Post by SiC »

Been fiddling with the electrical system on this last night. I'm trying really hard to not throw in the towel on the dynamo and just fit an alternator. No wonder so many got converted to an alternator and the car industry changed over so quickly once they became affordable. Electromechanical units may be nice in that they are easily adjusted, but solid-state units don't go out of whack so easily like these do.

Essentially on this car, you have to have the engine running at above 2k before it's charging rather than discharging and even then it's only putting back around 2 amps. Above 3k it charging properly at around 10-15amps. So the dynamo itself is working just the control box isn't controlling properly.

One of the things I noticed was the contact for the cut in and out relay was bent far out. You adjust the cut out voltage by bending this but you could see it only cut in at high revs when on the car.
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After a bit of fiddling on the bench and using an old coil to provide some load, I got the cut in to just about 13v (spec is 12.7v to 13.3v) when slowly winding up the volts. Cut out is at around 10.8v (spec is 9.5v to 11v). Higher cut out than I'd like but I was struggling to get a good mix from a decent cut in and out. Given the cut in is adjustable with a cam, I put that value as more important than the cut out which is adjustable by bending the contacts.
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I need to check the operation of the voltage and current regulator parts of the control box. However these rely on adjusting the field windings to regulate the power the dynamo is generating. Something not easy to replicate on the bench as it's quite a dynamic thing to copy with a fair bit of interrelationship between the different elements of the circuit.

Then I turned my attention to the fusebox. There was an interesting mix of fuses in there. One was rated 35A on the casing but that must be continuous rather than peak, while being a slow blow going by how chunky the fuse link inside is.
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As far as I'm aware, on this age car the standard pretty much was 17A continuous and 35A peak. The circuit for the fuse above fed the Horns and Main Beam. So quite high loads but should be within the capability of a 17A fuse.

Second fuse was a lovely Lucas branded original with a paper insert. Unfortunately one of the end caps twists and that is asking for trouble now I've removed the fuse. Any movement on those caps risks snapping the fragile fuse wire and at the tops where you can't see it.
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The spare fuse was a Lucas 25A fuse that was partially filled up with either oil or old grease! All three were replaced with new 17A/35A replacements.

I cleaned up the contacts on the fuse box itself as best as I could with it mounted in the car.
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Then gave it a wash as it was filthy from garage dust.
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