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by ctwomey
Mon Nov 16, 2020 5:39 pm
Forum: Projects and My Mini
Topic: 1983 Mini City
Replies: 117
Views: 12151

Re: 1983 Mini City

Logbook recorded as 99H791PZ 134199 and engine block has 99H997P 134199. Not that it makes much difference but it would have been nice to have it matching. Hi Colin, Great work by the way. From my own research, the 99H791PZ engine is one of the very first A+ Blocks (99H791P being the last of the A ...
by ctwomey
Sat Oct 31, 2020 7:50 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Hi Colin, Are you going to paint it or get it powder coated? Not too sure yet. Powder-coating will involve them (the powder coating company) shot blasting it and powdering it before I get a chance to repair or examine it. Could cost quite a lot to get done too. 2K is too dangerous to use at home bec...
by ctwomey
Sat Oct 31, 2020 1:52 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Stripped down the rear subframe. The only issue I ran into was one bolt sheared off, so in the progress of removing what's left. The weld that holds the nut in place on the subframe has started to give way so I might need to weld in a new one or replace part of the steel plate. IMG_3678.jpeg The sub...
by ctwomey
Tue Oct 20, 2020 2:05 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

One of the concerns when running the engine was the oil pressure was very high > 100psi. I had changed to the Cooper S ball and spring for the oil pressure relief valve. I have now machined about 3mm off the length of the spring. Turning over the engine cold the pressure has dropped to a safer 75psi...
by ctwomey
Mon Oct 19, 2020 2:42 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Posted some videos up on YouTube

RC40 noise - https://youtu.be/e_ESQL6K0Gk
Walk Around at 2,500 rpm - https://youtu.be/VlZcRS_Mjbo
Timing Light - https://youtu.be/BaXvhtOHaLo
by ctwomey
Sun Oct 18, 2020 8:59 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Finally got the engine running this weekend. Used Calverst’s method for running in the camshaft and camshaft followers. Warmed it up first for 1 minute without water just to get the initial timing correct. This was followed by retightening of the cylinder head and adding water to the cooling system....
by ctwomey
Tue Oct 06, 2020 10:55 am
Forum: General
Topic: YouTube Videos on SU Carb Tuning
Replies: 0
Views: 652

YouTube Videos on SU Carb Tuning

Hi all, Came across these recent series of indepth videos by D3Sshooter on YouTube that would be of interest to anyone wanting to learn more about the SU Carbs and their Tuning - https://www.youtube.com/playlist?list=PL_IgguanvXEZ-LPzSZT87pf_u4_kBtRgv (Videos 13-17 inclusive) He starts off adding a ...
by ctwomey
Sat Sep 12, 2020 8:24 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Finally new clutch back plate arrived. It's 1.22 Kg lighter than the stock one. It will be great to lose a little weight off the flywheel clutch setup without going for a light weight steel flywheel. IMG_3457.jpeg Took the engine and gearbox off the stand. Installed a new oil filter housing, braided...
by ctwomey
Wed Aug 19, 2020 4:44 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Pre verto flywheel has cleaned up well and both the clutch face and the internal tapper face are in excellent condition with no signs of fretting. IMG_2661.jpeg Unfortunately the clutch pressure plate is a mess and I suspect it was switched out at some point with the original because there is no way...
by ctwomey
Fri Jul 31, 2020 2:45 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Carb has cleaned up pretty well. Dismantled, cleaned, soda blasted and finally a low pressure glass bead blasting to get the shine back. Butterfly spindle needs replacing as it is worn which I will need to order but I have the standard service kit for the rest of the wearables. B5627C03-1CA7-459E-B3...
by ctwomey
Wed Jul 29, 2020 9:13 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Getting around to restoring some of the ancillaries for the engine.

Starter motor heavily rusted on the outside
IMG_2542.jpg
But after a strip down, clean, shot blasting and a few coats of satin black paint it has come out really well.
IMG_0422.jpg
by ctwomey
Fri Jul 17, 2020 1:03 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Is your oil pressure gauge union going to clear the feed pipe to the oil filter at that angle ? Never thought of that. I am planning on using a billet oil filter housing (to get rid of the dreaded bypass valve) and a braided stainless steel line to the filter housing so that might clear it. Otherwi...
by ctwomey
Thu Jul 16, 2020 2:30 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Finally got the gearbox and engine bolted together. The engine stand is a dream to work with. IMG_2620.jpeg IMG_2621.jpeg Also bolted on the flywheel housing. I noticed the front mounting bracket is missing so I will have to source one and also slightly longer studs to support it's 5mm thickness. IM...
by ctwomey
Thu Jul 09, 2020 10:40 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Finally got the 5 degrees offset woodruff key. Re-ran the timing with it installed and discovered I put it in the wrong way round. Anyway, changed it around again and now have the timing at 107 degrees as per the camshaft spec. IMG_2607.jpeg Oil pump and core plug installed at the end of the block. ...
by ctwomey
Sun Jul 05, 2020 7:10 pm
Forum: General
Topic: Mini unknown reg
Replies: 7
Views: 1317

Re: Mini unknown reg

The Marcos Graveyard wrote:
Sun Jul 05, 2020 5:18 pm
Last of the 10" wheels was Sept 83.
And the colour CMT (Cinnabar) on the plate was only used from '81 to '84 so with your info above it's either late 83 or 84.
by ctwomey
Sun Jul 05, 2020 3:12 pm
Forum: General
Topic: Mini unknown reg
Replies: 7
Views: 1317

Re: Mini unknown reg

Based on this page and the VIN it is in the 82-88 range https://5185a40b-a-62cb3a1a-s-sites.googlegroups.com/site/loveminigbbo00/vin-numbers/classic/VINhistory.gif?attachauth=ANoY7cpJA_TCGsV6sUVVl1pA2UiLMHBYKVvNRwcNbeM1y115Rq1aH59j9RN6LUY-0KcUNYWfTicNQf8oHzNT6tK9ejx7Uwm8HtMizdqA0Zx7OdDYZsb13qxhFl3bM...
by ctwomey
Mon Jun 22, 2020 10:58 am
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Gearbox finally finished and looking sweet too. Once the engine is finished I am going to try and run it outside the car, that way I can do some checks and tuning plus check for oil leaks from the gearbox or engine. Has anyone run an engine outside of the car before? I still a few items to address f...
by ctwomey
Sat Jun 13, 2020 8:09 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

The Marcos Graveyard wrote:
Sat Jun 13, 2020 7:24 pm
How much advance would there be just by moving one tooth on the cam gear?
There are 40 teeth on the camshaft gear, so that is 9 degrees per tooth. Woodruff keys are available from 0 - 9 degrees.
by ctwomey
Sat Jun 13, 2020 6:47 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Timing in the camshaft this weekend. Decided to leave the cam setup as a simplex with A+ tensioner, however I am using one of those non-stretch chains from IWIS along with a new tensioner. Plus if you add a duplex it tends to be noisier and the A+ cover also needs modifying to make it fit. I am usin...
by ctwomey
Sun Jun 07, 2020 2:37 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Some progress on the engine this week. Balanced the pistons and conrods. The conrods were balanced end to end. Overall the little end including the piston is now within 0.1 gram. And the conrods overall are within 0.5 gram. Made my own conrod balancer and was able to get consistent measurements whic...
by ctwomey
Sun May 24, 2020 11:54 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Time to check the diff preload. As this is a new X-pin diff the old preload will not be valid so I will need to remeasure. Plus given the Haynes manual assumes a certain gasket thickness too, those instructions will be not valid either. So I have offered up the two end covers with gaskets and will u...
by ctwomey
Fri May 22, 2020 11:48 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Some progress on the gearbox over the last few days. Installed a central oil pickup pipe. IMG_0499.jpeg IMG_0924.jpeg Installed new idler gear bearing in the gearbox casing along with new bearings in the transfer case for the idler gear and 1st motion shaft. Only used quality bearings here. IMG_2372...
by ctwomey
Sun May 17, 2020 7:11 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

The Marcos Graveyard wrote:
Sun May 17, 2020 2:31 pm
Wonder what Mags would say if I put engine parts in the oven :)
The block was super clean, no dirt of any kind. It was purely to help the water evaporate and warm it up for painting. Certainly wouldn't put anything with oil in there are even worse something requiring powder coating :roll:
by ctwomey
Sat May 16, 2020 7:29 pm
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Some progress on the engine over the last couple of weeks. Finally got the block and cylinder back from the machine shop. So started with a deep clean after the machining using a combination of Mr Muscle Oven Cleaner (wear a mask) and power washer followed by a quick high temp drying (80C) in the ov...
by ctwomey
Fri Apr 24, 2020 8:55 am
Forum: Projects and My Mini
Topic: 1981 Mini City 1000
Replies: 127
Views: 17954

Re: 1981 Mini City 1000

Started the assembly of the gearbox. So nice to be working with clean parts. The efforts to get them cleaned was worth it. IMG_2108.jpeg I did notice that two of the bearings I bought (1 x smaller layshaft, 1 x 1st motion shaft) were of dubious origin, so have decided to reorder those from another s...