Search found 2646 matches

by RobThomas
Wed Jul 29, 2009 10:16 am
Forum: Mechanical
Topic: balancing/blueprinting the bottom end
Replies: 21
Views: 1989

Many a happy hour wasted on this crank. Then it blew the rear main bearing cap off and wrecked it. Lesson? Making it run is cheap, making it run really well can be veeeeery expensive. I'd never bother to do it again for a road car since the return for my time was not worth it. Getting the flywheel b...
by RobThomas
Wed Jul 29, 2009 9:49 am
Forum: Series MM Register
Topic: Running on 3 cylinders!
Replies: 41
Views: 7197

I've got a late MM block here that I bought years ago. None of the head bolts appear to go through into anything but metal. No waterways or oilways pierced Might it be gunk from the threads being boiled and squirting back up the stud? I had thought about re-bolting the engine when I came to rebuildi...
by RobThomas
Sun Jul 26, 2009 8:35 am
Forum: Mechanical
Topic: modified rear crankshaft oil sel
Replies: 14
Views: 2525

How about drilling the rear main cap for a tiny bore capilliary pipe so that it runs into the gap round the scroll seal. Connect it up via a collector canister and a tapping right into the intake manifold so that it draws the oil off under any light throttle loading?
by RobThomas
Sun Jul 26, 2009 8:30 am
Forum: Mechanical
Topic: tapping for temperature gauge sender
Replies: 4
Views: 1356

A neighbour bought a new capilliary gauge without the adaptor and found the bulb end too long to go in without bottoming on the casting. Guess what he did?

First correct answer wins a file and a puddle of ethanol fluid.
by RobThomas
Fri Jul 17, 2009 10:32 am
Forum: Series MM Register
Topic: Series 2 gearbox in Series MM
Replies: 2
Views: 1071

I have a running USHM2 engine and box here in the shed. There are a few about plus the Morris 8 engines and boxes which are almost identical.
by RobThomas
Thu Jul 16, 2009 9:56 am
Forum: Series MM Register
Topic: Front Hub Nuts
Replies: 18
Views: 3998

My aeroplane has right-hand threads on both sides and came with Nyloc nuts. :o :roll: Drilling for splitpins in case-hardened steel is a right PITA but worth the effort in this case.
by RobThomas
Wed Jul 15, 2009 3:11 pm
Forum: Series MM Register
Topic: Front Hub Nuts
Replies: 18
Views: 3998

I've found 2!!! Sadly, they are both right-hand threaded. I'll keep looking, though, and let you know what I can find. Have you thought about getting some cut? Ought to be quite simple to do. PS Much coarser thread than Midget/M1000 nuts. Are you sure that the MM was left-hand threaded on the other ...
by RobThomas
Sun Jul 12, 2009 8:27 am
Forum: Series MM Register
Topic: Front Hub Nuts
Replies: 18
Views: 3998

So, 2 front nuts from an MM would do?
I'll have a good look through the garage. Fairly certain that I've got some and then If you send me your postal address I'll get them round to you. Might take a while, though!!

Rob
Cardiff, South Wales (The old one, not the new one)
by RobThomas
Thu Jul 09, 2009 4:34 pm
Forum: Series MM Register
Topic: Converting back to original engine + gearbox
Replies: 6
Views: 2808

PS I have a Morris 8 engine/box in my 1935 MG pick-up (Doooooon't ask!) that was replaced by the MM as the tow-car for the aeroplane.
by RobThomas
Thu Jul 09, 2009 4:32 pm
Forum: Series MM Register
Topic: Converting back to original engine + gearbox
Replies: 6
Views: 2808

They'll have cut a knotch out of the underside of the crossmember where it goes over the gearbox. Almost everything else is the same. You'll need engine, box, propshaft (Hmmmmm, maybe not?), starter, exhaust manifold (different bore and angle) and I expect the clutch linkage is quite different since...
by RobThomas
Thu Jul 02, 2009 4:15 pm
Forum: General Discussion
Topic: Update on the restoration of my MM
Replies: 200
Views: 51139

Just curious.....what colour interior have you got and are there any pics you could post me? We've got the 49 lowlight tourer and the boss doesn't want the red leather interior that I bought from Newton....she wants the original tan with coloured piping. :roll:
by RobThomas
Fri May 22, 2009 5:54 pm
Forum: Mechanical
Topic: DOHC conversion
Replies: 21
Views: 4255

These were designed for supercharged engines so it might be almost as expensive to make a Shorrocks-blown alloy headed A as to make a BMW headed one.

Bloody good fun for as long as it lasted, though! :D :D<br>Image<br>
by RobThomas
Fri May 22, 2009 5:51 pm
Forum: Mechanical
Topic: DOHC conversion
Replies: 21
Views: 4255

Midget 1967 thin-flanged blocks came as standard with EN40B Nitrided crank and Cooper S rods. Pretty unbreakable but rarer than hens teeth. (I've only got 2!! :wink: ) I'd guess that you'd then need to get an ARP bolt set and centre strap to hold the crank in place for fear of the engine letting go ...
by RobThomas
Fri May 22, 2009 9:12 am
Forum: Series MM Register
Topic: Distributor Problems
Replies: 5
Views: 1327

If it helps, the Cooper S standard dissy (40819, IIRC) has the same max advance as the MM so you can time it to TDC in the same way as the MM and still get the same max advance when running at speed. Ought to keep you safe from blowing the engine. The advance curve of the S is quite rapid so you mig...
by RobThomas
Sun May 10, 2009 8:21 pm
Forum: Mechanical
Topic: Will my wheels fall off!!
Replies: 93
Views: 9891

Rostyle wheels use a steeper taper than ordinary Mog wheels. Probably 10 degrees difference, easily enough to knacker the wheels AND nuts. Some Mog wheelnuts have tapers at BOTH ends. I seem to recall that GPO vans had them. Midget rims are 13 inch but Vauxhall Rostyles have 14 inch rims on some mod...
by RobThomas
Sun May 10, 2009 8:18 pm
Forum: Mechanical
Topic: Will my wheels fall off!!
Replies: 93
Views: 9891

Rostyle wheels use a steeper taper than ordinary Mog wheels. Probably 10 degrees difference, easily enough to knacker the wheels AND nuts. Some Mog wheelnuts hve tapers at BOTH ends. I seem to recall that GPO vans had them.
by RobThomas
Wed May 06, 2009 11:04 am
Forum: Series MM Register
Topic: Twin SU's
Replies: 62
Views: 22916

Having the middle 2 exhaust stubs come outboard more will allow all 4 pipes to be of equal length which aids exhaust pulse extraction (In theory?) There is enough of a gap at the rear for a float chamber to fit between the carb body and the crossmember without getting smacked but it won't work if th...
by RobThomas
Wed May 06, 2009 10:58 am
Forum: Series MM Register
Topic: Twin SU's
Replies: 62
Views: 22916

I have the same carbs but with zero degree float chambers and longer, by about an inch or two, inlet tracts. Might be possible to get a heatshield in there more easily with the carbs further outboard plus you'd have a better chance of having a bunch-of-bananas exhaust manifold under there. Doesn't d...
by RobThomas
Sun Apr 26, 2009 6:01 pm
Forum: Series MM Register
Topic: Strange engine noise = engine rebuild!!
Replies: 58
Views: 16247

Might be worth checking to see what thread is on VW Beetle crank/head through bolts. I've a feeling that some are 8mm but most are 10mm coarse. A good source of precut threads and the bolts/studs are long enough that you could stick any thread you wanted on the other end. Homecut threads (as opposed...
by RobThomas
Sun Apr 26, 2009 5:56 pm
Forum: Series MM Register
Topic: what is this for?
Replies: 7
Views: 2768

The adaptor for a capilliry gauge from any later Morris or Midget will fit and allow the use of a cap gauge temp unit.