Ken -The 1275 High Compression Engine Micra Mini (Running Project)
Posted 31 July 2018 - 03:43 PM
Mot is passed
20180731_153930 by Lawrence Balls, on Flickr
Taxing her tommorow.
He's a video of her on the road
20180730_135251_1 by Lawrence Balls, on Flickr
Note the whining? It's the fuel pump.
Think I've shagged it. Not only should it be ran as a push pump not a lift one but it should also be ran with the filter post pump not pre pump! Plus I ran the tank almost dry the other day!
Well I did buy a cheap pump last year knowing it would be highly likely to break by my hand. Least it wasn't £150!
So I've purchased another cheap Bosch 044 style one today for £15 and some more hose and some spare fuel filters.
The other reason I think the fuel pump is shagged is that she won't happily go over 50without leaning out. Anything more than 1/3 throttle makes her lean and the acceleration enrichment was set to standard settings yesterday. Today I tweaked it to a constant, under medium acceleration she is surging. afr goes to 12 from 14 to then spike up to 20 (lean)
So new pump and some replumbing is planned. I'll hang the pump from the subframe so it'll be gravity fed better and run the filter post pump as recommended
All for now!
Posted 31 July 2018 - 04:25 PM
My eyeballs are still bouncing
Well done, it's been quite a ride
Posted 08 August 2018 - 06:48 PM
Posted 11 August 2018 - 08:24 AM
Cheers for the comments guys!
She is still working. Together I have driven about 25 nerve-wracking miles in her, some with a support car! She gets some weird looks! Especially the lady in the range rover who I pulled up next to in the garage! Though she was having a panic attack when mini backfired!
So she has been taxed from the first of august!
However we finally got the keys for our new house on the 3rd! Meaning she has taken a back seat (not my choice but lets not anger the partner quite yet!)
Off topic, new garage is pretty small but has rafters, there will be a garage build integrated to this blog with a roof mounted engine hoist sometime in the future!
Yep I had buggered it
Removed from where it was
holes made in the boot
new location under the boot floor.
there is good clearance from the exhaust by the way, just hard to photograph
original hole that the hose went sealed up
boot packed with emergency kit
started work on the roof mirror and light mount
and in situ with the new ceiling light mount
still need to redo a bit of wiring as the ceiling light doesn’t come on with the door lights yet but its easy to do
So shes running very iffy.
When I changed the fuel pump and fuel filter was relocated to the bulkhead (and filter changed) she did run ok.
Idle and minimal throttle are completely fine.
Anything more than minimal and she is still leaning quite a lot. I think ive tuned up to maybe 30% of throttle opening currently, any more than that and she leans to 22.4 on my afrs!
Cooling. Ironically she was fine coolent wise on the way to the mot and even sitting there with high revs for the emmisions didn’t overheat running on just water. But now ive changed the coolent she is overheating.
I think the system has an air lock. Also the way ive plumbed the idle for the ITBs may be interrupting the flow of coolent? Not sure. So this morning im planning to try and bleed the system again. If this doesn’t work ill temporarily clamp the ITB coolent line and see if its turbulent flow in the rad causing issues which I suspect it may be!
That’s all for now
Posted 20 August 2018 - 08:15 PM
Time for an update!
Last update I was doing some tests with the cooling system. The way the itbs were plumbed meant that with driving the coolant bypassed the thermostat before it was fully opened and made the engine start to overheat.
So I clamped the line and did some runs. Solved the problem.
Then I moved mini to her new home (and my mattress!)
she fits fine.
All cleared out for some painting
racking put up
plenty of room
not sure what to do with my bike yet tho. May park her outside and get a cover. Push bikes ill hoist up to the ceiling with some rope and eyes. I need to deck more of the rafters out. Planning to keep all my spare spares up there and the used spares down in my roller cab.
Keep an eye out for more garage updates!
Making my mods to the cooling system
blanked the ITB coolant feed off
rejigged the radiator fan
luckily I could spin that top protector bar and use one of the rad mounts to mount the fan on the back. Its not a pull fan as apparently that’s the most efficient way of removing heat for a front mount rad.
Ive also lowered the rad and straightened it up.
Plan tomorrow is run it up to temperature and bleed the system, hopefully she will get rid of the heat better.
Today I took her for a 30mile run back to my parents for more garage stuff
15 country roads
15 main roads
on the country roads at 40-45 ish she sat happily at 88degrees. Boot it and the temp would rise.
But on the way home on the main roads at 45-55 she gradually crept up.
Ive also got this gap
So ordered a 7inch fan for that space.
Ill update again soon! Thinking about making some aluminium ducting to control air flow in the engine bay but not sure if it is worth while?
Posted 27 August 2018 - 10:28 AM
Shes running pretty well currently. Since i swopped the fan to the other side and adjusted the radiator she is holding a steady 88degrees even when booting it. In traffic she does start to get warm so i will fit that second fan when it arrives but its looking good. Ive also ordered some heat shielding and i will make a better sheild between the exhaust and the rad as well as some ducting to direct air.
Currently im just driving her about town, being a bit yobby with the exhaust in car parks and tuning the acceleration enrichment more. Also doing more of the garage build. Currently decking the loft part but im collecting more parts this week and potentially my bike also.
All for now
Posted 27 August 2018 - 11:09 AM
Great to see the car being used at last
Another fan may cause some flow problems as it will cover some of the radiator and you may find the fans are coming on more often. On my camper I've ditched the mechanical fan and fitted a lekky one but the temp would creep up until the fan cut in. I fitted a small bike rad (KTM 125) in the heater return and now the temp sits happily a few degrees below where the fan cuts in which now only operates in traffic or after a hard run
Posted 29 August 2018 - 06:31 PM
Cheer for the comment!
Trouble with just the one fan is that it would cool her if needed but not very fast. Now ive modified her she runs at 84degreess on my post rad sensor. Not sure on the block one as megasquirt wont read it.
Decking out the garage roof
plenty of space for spares up there!
Second rad fan fitted
high quality braket made
rad spaced out a lot more now.
when I bring my welder over ill make myself a new bracket to support the whole of the bottom of the rad
how the garage is now
plan is to build a great big workbench across the back of the garage using old kitchen worktop that I have. Ive got a nice big vice to fit to it too. Im going to make the bench really sturdy and wall secure it etc.
ive also managed to get my bike in the back garden too. Be interesting to see with the gf says!
And a little shot of her in the multistory
list of broken bits
>edis is intermittently working
>right indicator is too fast
all for now
Posted 11 September 2018 - 08:23 PM
So from before the issues were
>edis not working
>right front indicator not working
I took the megasquirt apart and discovered ive no idea what I did to it before, mini was therefore running a fixed level of timing at 10degs
So dismantled and correctly wired up
daughter board removed
ive left the spare drivers on the board as im planning to go to COP in the future and rid myself of EDIS as its just one more thing to go wrong. I also want to upgrade from MS1V3 to either MS2 or MS3 depending on finances.
Meelie had a look inside too
and the girlfriend took her for a drive to the local tesco too
with a look of panic saying “these brakes are rubbish”
Also fabricated some restrictors for the ITBs too
I also did a bit of wiring in the garage ready for my workbench to be fabricated
all for now
Posted 31 October 2018 - 04:03 PM
Good afternoon people.
No real updates im afraid on the mini front! As readers of my build will know ive moved house and that means I cant use my parents cars anymore should mini not work.
Mini doesn’t work. So ive had to buy a different car.
Bench finally sorted
new oil leaks
new battery for mini
driveshaft gaitor failed
Engine rings have not sealed properly and/or my honing was bad and/or trying to tune a newly built engine on ITBs was a bad idea and/or my megasquirt just cant cope with ITBs (ms1)
So- I need either
New engine and new megasquirt
New engine and fusion fabs mani and run current megasquirt
Donor car with ecu and fusion fabs mani
Either way mini doesn’t work and hasn’t for over a month. Now I have been motorbiking to work which as people will know isn’t practical in the winter.
So ive got a winter run around/ project car ;) bike is going to live at my parents over winter.
Mini is currently paused – im looking out for 1.3 engines/ whole car locally.
e46 330ci with all the mod cons! See any other projects for this project and ill update mini when I get the engine
all for now
Posted 02 November 2018 - 07:49 AM
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