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1965 Hillman Imp
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Discussion Starter · #41 ·
Oh hey thanks so very much for the offer. However I'll be running a complete new engine management based on a Speeduino ECU. Quite possibly the latest variety so I can run the efi fully sequentially. I'll certainly post up the details as I build it because that will probably be of more interest.
I built my own efi setup for my Viva with a Mazda v6 , using megasquirt. Its a really fun part of the build process and very cheap to do as well.
 

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1965 Hillman Imp
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Discussion Starter · #42 ·
Hey folk. I'm still working away on this. Its going well- really thankful to have had it turn up to tinker away on while our country was in lockdown. Now things are going back to normal here I'll be doing other jobs but still work on this as much as I can. I'm currently re-fabricating the oil pipes to and from the pump, filter and engine to suit the new position of the pump , backwards and on the other side plus a new oil filter position (moved to allow room for a engine cross member)

Lots of work to do yet but I'm getting through the hardest bits now. EDIT; some of the photos loaded are out of date order. The chopping of the transmission case came before the heating and welding of the new sump flange- honest ... I'm not a magician wth a time machine :)
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I'll be doing a proper update on the car forum thread soon- up till now you lot are the only folk who know that this is taking place :)
Its going to be a lot to post up! I'm really excited about how its going and honestly even if it all went pear shaped at some point its still been a fun bit of engineering so far- lots of head scratching.

Alex
 

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2003 GL1800A
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Cutting metal with bare feet is only slightly less manly than frying bacon naked.
 

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This is quite interesting. So nice to have all the machine tools to do the work of your dreams.
 

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1965 Hillman Imp
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Discussion Starter · #47 ·
He he.. Yeah those are my favourite safety feet in wearing there. Barefoot through out summer and most of winter because.. Well its just nice. Its a very kiwi thing as well. Especially in our region. Beach life. My feet are pretty leathery so its very rare i get anything in them plus i sweep the floor often!
But i do wear steelcaps when lifting heavy stuff/sheets of steel.

I'd love to get a better mill in the future and it will happen but for now this little drill mill has proven to be very handy. Anyway... It takes a huge mill to be able to fit things the size of an engine block under the cutting head.
 

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1965 Hillman Imp
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Discussion Starter · #48 ·
Far out! November last year was the last time I had tinkered away on this project. Time flies!!! Here is a well overdue update. I have copied and pasted this over from one of the other forums I post on. I'll put up a link here for those of you interested in reading previous posts - have a looksie here...


Well both Hannah and I have been pretty busy with various things like having to get the housetruck finished off and road legal for sale and with that gone we had to build a place to live. The mezzanine build took a fair whack of time. That's all pretty much done, well at least to a point that we can happily live up there. I started losing a feel for time over summer with all that going on.

Then a Micra/March turned up. A simple, cheap run about while the Imp is off the road eh.

Then another Micra...

and another. Oh - so now these are projects are they?

FFS.

Oh hey...what's that? Is that a Bedford TK truck in the yard. But hang on.. you've already got 4 other vehicles to play with, not to mention the old 4wd Hiace van that's getting bit rusty around the edges.

Well screw all them. I just needed to get my 'flat six fix' so I dug out all the bits that had been hibernating under the bench and had some fun piecing them together in a sort of organised fashion on the table...







Now where does this bit go?....



After having some fun taking photos I stashed some of the parts like the heads, cam gear, pistons etc that I wont need for a while back under the bench until needed. I had to confront a mini stumbling block I had with the oil pump drive sprockets. There is one small sprocket that slides onto the hub of a larger one and needed to be fixed in place. My initial thoughts were to weld it but I was worried that it would warp and cup. I sized it up for possibly bolting it in place using small cap screws but there just wasn't enough room between the chain and the hub, even for small 4mm screws. Welding it was going to have to be. I would get some advice though beforehand.

But first I wanted to add a very slight taper to the teeth so there would be no sharp square edges that could potentially catch and rub against the inside of the chain plates. 3 of the sprockets were easy enough to pop in the lathe and give them a tickle with a flap disc. But the smallest I had to whip up a little hub to clamp it on...





Trying to take a photo with one hand while holding an angle grinder in the other...



Then sitting in front of the fire and cleaning off any sharp edges...



Now I had sprockets I was happy with I had to confront my welding issue. I popped over the hill and chatted to another engineer I know who has a lot more experience with welding of such things than me. He pretty much told me what I had already guessed and I decided to just go for it. But just to be sure I thought it prudent to machine up a fake sprocket and hub to see how they faired when welded. There was no cupping evident so I went ahead with the sprocket. First thing though was to heat both parts up gently. Not too hot. Just hot enough that I could touch them but not get burnt...



This way the welding could be quick and light without a mass of steel sucking the heat. But not so hot that shrinkage could be an issue either. I used the little tig welding table I had built ages ago for more comfort when doing such jobs...



I'm certainly not a super neat tig welder like some artists out there (and never will be with only having decent sight out of one eye so judging the distance can be an issue) so I was very happy with the result and super happy that nothing pulled..



With this part finished I could concentrate on the chain tensioner design. I had a few ideas and had amassed a few bits to tinker with....



Being that the chains are under constant load and only turning a pump the tensioners are really only needed to stop excessive slap. Nothing to do with timing changes like a cam chain.

I had two Datsun A12 tensioners to try out but no matter how I arranged them they conflicted with each other and there was no room for mounting bolts where I needed them..



So I tried out some Mazda/ford 2.0 duratec tensioners and they show great promise...





I will make mounting blocks to suit and knock this part of the build on the head! Then onto finishing the bellhousing.

Hopefully some more updates soon although we have also started pulling one of the Micras down for the big swapsie game but that is mainly Hannah's project so I can keep working on this as I can.
 

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That is some nice work. My first thought, having forgotten all about the rest of this thread, was the engine turns the wrong direction but then I went back and saw you are using a front engine transaxle backward.
Another thought, have you considered the thrust load of the clutch?
 

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Thanks for bringing us up to date. Keep moving forward as life allows. Great looking fabrication .
As mentioned earlier in the thread Valkyrie heads/camshafts may give you a bit more performance then the stock Wing bits.
 

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Piaggio MP3, was 02 GL1800
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yoeddynz,
I am going to email you some info, that "might" be helpful to you.
the incoming email address will be from AZgl1800 'at' Yahoo . com
 

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1965 Hillman Imp
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Discussion Starter · #52 ·
Another thought, have you considered the thrust load of the clutch?
Yep- the clutch. I almost did make the mistake of ordering a standard rotation spec clutch pressure plate, where the tension straps would have then been under compression! Luckily I realised my almost mistake when I was out on a bike ride and thinking about it. I changed the order for a Honda (accord I think) clutch pressure plate which has the straps in reverse to suit.

yoeddynz,
I am going to email you some info, that "might" be helpful to you.
the incoming email address will be from AZgl1800 'at' Yahoo . com
Cool! I'll keep a look out for it. :)
 

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What an awesome project. A video of the completed machine would be greatly appreciated. I know the sound will be quite impressive, coming from an Imp. I hope there are enough people with a trained ear that will appreciate your efforts.
 
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1965 Hillman Imp
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Discussion Starter · #54 ·
Cool. Good to hear of another potential implant into a car.
Yes - I'll certainly be making a few videos of it once it's up and running and I'll certainly post them up here.
When it comes to building and fitting the fuel injection i will pop up loads of info on that too for those that might be interested in converting their bikes over.
 

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Piaggio MP3, was 02 GL1800
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Cool. Good to hear of another potential implant into a car.
Yes - I'll certainly be making a few videos of it once it's up and running and I'll certainly post them up here.
When it comes to building and fitting the fuel injection i will pop up loads of info on that too for those that might be interested in converting their bikes over.
thank you for that also
 

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Curious, what are you doing about a starter?
 

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1965 Hillman Imp
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Discussion Starter · #58 ·
I've made a custom flywheel that bolts to the crankshaft hub adaptor I made. The flywheel I machined to take a subaru leone ring gear and that then matches the leone starter motor, attached to the leone transaxle.
 

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I've made a custom flywheel that bolts to the crankshaft hub adaptor I made. The flywheel I machined to take a subaru leone ring gear and that then matches the leone starter motor, attached to the leone transaxle.
But does it turn the right direction?
 

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Discussion Starter · #60 · (Edited)
But does it turn the right direction?
Ooooh. You've got me there! Good point! No it won't. Not unless I can reverse its polarity. I'll have to think about this one.
I could potentially mount it the starter to face the other way or look at starters that rotate the opposite direction. I was going to have to chop and reweld the mounting face on the bellhousing anyway in order to suit the flywheel ring gear position and I have not yet started that job so luckily I can still make or adapt something to suit.
Statrer motors are usually an ugly thing and the fairly large subaru item i have to use was certainly not going to look very nice where it was going to sit, especially when I want a nice clean, symmetrical looking engine with six neat itbs etc.
Lucky you've brought this up now!

Edit: I can't reverse the simply change the starter motor rotatation, even though it could be done by move the brush ring etc, because the starter will have a one way clutch on the pinion which obviously won't work backwards.

I'll have to look into a different starter position or find one to suit that rotates opposite to this. Possibly some Honda cars have something but I am guessing they use standard rotation starters mounted backwards to suit.

My ring gear might have to come off and be flipped too. Bugger.
 
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