Author Topic: K1275RS Classic Mini 1275 16v  (Read 60905 times)

Offline Sprocket

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Re: Classic Mini 1275 16valver
« Reply #15 on: October 05, 2008, 09:43:44 pm »
Engine is now complete and will be going in next Saturday, hurrah :D

Heres a few pics with it not quite complete, but looking more like an engine ;D








Offline Sprocket

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Re: Classic Mini 1275 16valver
« Reply #16 on: October 12, 2008, 08:09:13 pm »
How good does this look ;D


Offline rob@vems.co.uk

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Re: Classic Mini 1275 16valver
« Reply #17 on: October 12, 2008, 08:54:20 pm »
Awesome - just plain awesome.

Offline Sprockets

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Re: Classic Mini 1275 16v (K1275RS)
« Reply #18 on: October 13, 2008, 08:48:28 am »
Congratulations that man!!!  Looks as if it was meant to be there :)  Top work.

Offline Denmark

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Re: Classic Mini 1275 16v (K1275RS)
« Reply #19 on: October 13, 2008, 05:24:35 pm »
That is indeed looking great :)
working on the boxer

Offline Sprocket

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Re: Classic Mini 1275 16v (K1275RS)
« Reply #20 on: October 26, 2008, 07:37:14 pm »
It runs ;D

all be it a bit rich. Had it running for about 2 mins before it died. Needs some work on the tables

Batteries ran out on the laptop and the light faded fast. Wont be till next week end before I can get back onto it

few things need fixing, but its a tuning exercise now :)

Offline Sprocket

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Re: Classic Mini 1275 16v (K1275RS)
« Reply #21 on: November 01, 2008, 11:46:58 pm »
Today has not been without its problems :sad3:

Firstly trying to dry out an engine that was flooded and at a temperature of 5 degrees C, was not the easiest. In the end I used a heat gun, jammed open the throttles, removed the plugs and turned the engine till each cylinder in turn had open inlet valves, then blew the hot air into the cylinder. while using an electric fan heater blowing downwards onto/ into the head.

I originaly thought the flooding was down to a combination of to high a VE number, too much warm up enrichments, and where it sat on the target lambda map. So I revised those settings completely. Once the cylinders were again dry, I tried again, but only to find cylinder #1 flooded again very quickly. I started to think that there was actualy a hardware problem. I pulled the injector rail out with the injectors and tested, only to find that injector 1 on all the time and pouring fuel into the cylinder at a rate of 248cc/ minuet!!!!

Quick swap around of the injectors, to find the issue still on number 1 I looked through all the output channels and could find no conflict, so for now, I just changed to a different injector channel and reconfigured. This allowed me to get the engine running and warmed up.

I think there is an air lock as the coolant tenp shoots right up, but the rad end tank is cold. I left the rad cap off and then found that when the thermostat opened it pushed a lot of the coolant back out because of that air lock

Anyway, I took a quick video, and just as I stopped filming, it stalled. The tank was now dry I only had what was left in the bottom of the tank and what was left in the bottom of the jerry can, which was about 1 litre and most of that went into number one cylinder and into the tray while testing

That was it, time was 3 o'clock and we were off out to my nephews birthday party for 4. Drying the engine out took the longest for it only to be buggered up with the first cranking due to that injector problem

Anyway, its going to be another week again before I can get back to it

http://uk.youtube.com/watch?v=cKkjanvlQ9w

Offline Sprocket

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Re: Classic Mini 1275 16v (K1275RS) Its A Runner
« Reply #22 on: November 02, 2008, 09:07:30 am »
I have just been reviewing the logs and it deffo looks like i need to run Alpah-N as the MAP signal never drops below 75kpa and fluctuates nearly 20kpa

I kind of expected that anyway.

Need to sort the cooling system out before I can get it somewhere right, probibly vac it down to get the air out.

Offline rob@vems.co.uk

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Re: Classic Mini 1275 16v (K1275RS) Its A Runner
« Reply #23 on: November 02, 2008, 11:28:45 am »
Good to see that you're making progress, FETs will blow closed circuit and can cause that problem with sticking injectors :(  Definately need to check the rating of your fuses and the resistance of that injector, a fuse should blow before a FET does.

Offline Sprocket

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Re: Classic Mini 1275 16v (K1275RS) Its A Runner
« Reply #24 on: November 02, 2008, 04:57:18 pm »
Injector fuse is a ten amp job.

I have been blowing the coil fuses, but i put that down to the dwell time being too large, I dropped the dwell to 1.2ms but the fuses still blew, I then changed out the coils, and the 1.2ms was fine, so one of those coils was duff. 1.9ms still blows fuses, but 1.5ms doesnt.

The injectors were sticking, the were cleaned and had been sat on the shelf for over a year (bad ::)). I tested them by pulling the fuel rail from the head and cranked the engine over, three injectors were firing and #1 was fine at that time, number three needed a sharp tap to get that working. No idea when or where. I swapped the injectors round so if #2 does the same there is something indeed wrong with that injector.

Offline Sprocket

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Re: K1275RS Classic Mini 1275 16v
« Reply #25 on: December 23, 2008, 12:36:20 am »
Repaired a major oil leak already, these conversions are not with out oil leaks, funny thing is that my oil leak wasnt on the engine but the gearbox.

Off to the dyno tomorrow, Wish me luck ;D

Offline Sprockets

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Re: K1275RS Classic Mini 1275 16v
« Reply #26 on: December 23, 2008, 04:18:15 pm »
An A-Series gearbox leaking oil?!?!?!?  Surely you have a duff one lol!  That isn't a leak anyway, it's an oil level indicator.  When it stops leaking, you need to top it up lol.

Good luck with the dyno run mate.  Make sure to get the graphs ready to post :)

-Gavin

Offline Sprocket

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Re: K1275RS Classic Mini 1275 16v
« Reply #27 on: December 23, 2008, 11:14:15 pm »
Mate :D 1 litre of oil lost overnight is not just a 'leak' :D

A few drips is fine, not a puddle ;)

Offline Sprocket

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Re: K1275RS Classic Mini 1275 16v
« Reply #28 on: December 23, 2008, 11:15:02 pm »
107bhp at 7300rpm and 81lbft at 6400rpm