'89 Mini City To 'mk1 Cooper S'
#406
Posted 18 May 2020 - 08:46 AM
#407
Posted 18 May 2020 - 05:01 PM
Everything is now back together so I thought I'd take it for a short test-drive to see if the new coil has addressed the 60mph cutout. It hasn't. I'll now be booking it in to Tipton Garage for some professional imput.
#408
Posted 18 May 2020 - 05:05 PM
probably the electronic ignition module playing up
#409
Posted 18 May 2020 - 07:23 PM
Brand new 123 tune bluetooth so I hope not!
#410
Posted 19 May 2020 - 03:47 PM
To add to my woes I've noticed coolant seeping out between the block and head when warm!
#411
Posted 28 May 2020 - 08:32 PM
I've ordered a new (copper)head gasket for the coolant leak problem and some 8mm fuel pipe and fittings to run from the electric pump to the carbs. I noticed when I was quantifying fuel flow that a lot of flow/pressure (7.5 litres per hour!) was being lost in the long section of 6mm pipe and as at the moment I'm still thinking that a lack of fuel is my issue at 55mph I thought a freer flowing main pipe may help.
Edited by johnR, 28 May 2020 - 08:35 PM.
#412
Posted 29 May 2020 - 01:33 PM
#413
Posted 29 May 2020 - 09:35 PM
No, that was just what was being lost in the pipe! Full flow was 12litres ph - I've since replaced that pump with a facet Posi-Flo but still currently using the same pipe. I guess that the small bore size and numerous tight bends all restrict flow so I'll keep the new 8mm pipe, when it arrives, as straight as possible. I took the car out for a run this evening - it pulls really strongly up to @ the 55mph mark, but if I keep it at that speed it soon splutters and runs terribly for a while(whilst the float bowls re-fill?) then we're off again as though nothing happened.
#414
Posted 01 June 2020 - 04:42 PM
My 8mm copper pipe arrived together with an 8mm union for the pump. It's fairly malleable pipe so I was able to run it up through the front subframe from underneath with a little help from my son. I also made the front to back run as straight as I could instead of the 90 degree doglegs of the standard pipe. We then set it up with a hose into a measuring jug and ran the pump. My litre jug was full in about 40 seconds which equates to 90 litres an hour! Should be enough?!!!!
Just need the 8 - 6mm reducer for the connection to the carb rail to arrive and we'll see if that's done the trick.
#415
Posted 01 June 2020 - 06:05 PM
#416
Posted 01 June 2020 - 08:40 PM
Took it for a test drive and wasn't really surprised when the problem was still there exactly as before! I'm out of ideas now so looking forward to passing the problem to the garage on 11th.
#417
Posted 01 June 2020 - 11:18 PM
Does it only happen in top gear at 55mph, or will it do the same in a lower gear at similar rpm?
#418
Posted 02 June 2020 - 06:16 AM
No' I had thought of turning off the pump and checking, but I'm usually in an inconvenient section of fast road. Mostly in top - I'm still running it in so don't want to hold higher revs for too long yet.
#419
Posted 04 June 2020 - 03:26 PM
Thought I'd make a video of my mysterious issue in action - not sure if you can hear it dying,clattering then picking up again after a short while? Speed in Kph.
Edited by johnR, 04 June 2020 - 03:48 PM.
#420
Posted 04 June 2020 - 04:58 PM
If you hold it 4k+ in a lower gear, does it do the same thing?
Have you checked the fuel tank breather isn't blocked?
How clean it the inside of the tank - anything in there that could block the pick-up pipe?
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