Search found 2433 matches

by RobThomas
Fri Apr 19, 2019 2:45 pm
Forum: Mechanical
Topic: Strange oil contamination
Replies: 15
Views: 291

Re: Strange oil contamination

Alan. Are you using a screw-on filter?
by RobThomas
Fri Apr 19, 2019 7:42 am
Forum: Mechanical
Topic: Why is the air intake above the exhaust?
Replies: 16
Views: 457

Re: Why is the air intake above the exhaust?

Carb icing is rare in this country I doubt you would experience it unless you were in the wilds of Scotland. Strangely, the UK is ideal for forming carb ice. The drop in pressure down from the carb and the latent heat of vapourisition (Is that right?) drop the air temp in the manifold by maybe 15 d...
by RobThomas
Fri Apr 19, 2019 7:35 am
Forum: Mechanical
Topic: Strange oil contamination
Replies: 15
Views: 291

Re: Strange oil contamination

Could it have been corrosion of the Alloy castings round the timing cover after a long lay-up with condensation? Cork side cover gasket dried out and flaking?
by RobThomas
Sun Apr 14, 2019 9:55 am
Forum: Mechanical
Topic: Why is the air intake above the exhaust?
Replies: 16
Views: 457

Re: Why is the air intake above the exhaust?

Moisture will precipitate out when the pressure drops so an SU carb (or pretty much any) will cause ice to form just down from the dashpot. Injection engines don't suffer this as much since the fuel droplets are created right close to the valves and thus don't add to the cooling effect in the intake...
by RobThomas
Sat Apr 13, 2019 6:02 pm
Forum: Series MM Register
Topic: Low Light UFN 456 is now mine!
Replies: 15
Views: 396

Re: Low Light UFN 456 is now mine!

George. Do you know what happened to the ALTA head that was on the car back in 2011?
by RobThomas
Fri Apr 05, 2019 5:21 pm
Forum: Series MM Register
Topic: Front Swivals and Stub Axle
Replies: 12
Views: 291

Re: Front Swivals and Stub Axle

No photos visible, Alan
by RobThomas
Wed Apr 03, 2019 5:12 pm
Forum: Series MM Register
Topic: MM steering wheel and badges
Replies: 3
Views: 134

Re: MM steering wheel and badges

Our Thames Blue car had a blue-grey wheel and John Gamble said his black car came with a reddish-brown one. I wonder if anyone at the factory bothered to try and match the wheel to the paintwork? We have several light brown ones and some tan ones.
by RobThomas
Wed Apr 03, 2019 5:07 pm
Forum: Series MM Register
Topic: Front Swivals and Stub Axle
Replies: 12
Views: 291

Re: Front Swivals and Stub Axle

In the absence of a photo to confirm it seems you have bog-standard Morris 1000 legs and nothing will fit without fairly major machining.

How were the legs 'reconditioned', Alan?
by RobThomas
Tue Apr 02, 2019 5:17 pm
Forum: Series MM Register
Topic: Front Swivals and Stub Axle
Replies: 12
Views: 291

Re: Front Swivals and Stub Axle

Early stubs have a smaller hole in the leg, hence are not interchangeable with Morris 100 ones(well, at least on mine).

As Phil says, a photo will resolve everything.

Rob
by RobThomas
Sat Mar 30, 2019 3:29 pm
Forum: General Discussion
Topic: Exhaust raspberries
Replies: 12
Views: 398

Re: Exhaust raspberries

One of our Sidevalves does it but the other 3 don't.
by RobThomas
Sat Mar 30, 2019 7:15 am
Forum: Mechanical
Topic: Ball Joint - washer?
Replies: 12
Views: 372

Re: Ball Joint - washer?

If you wrench the track rod end body over sideways with a big spanner then it helps to stop the taper spinning as it gets tightened.
by RobThomas
Sun Mar 24, 2019 2:22 pm
Forum: Series MM Register
Topic: Sidevalve head removal issues. Help!
Replies: 16
Views: 455

Re: Sidevalve head removal issues. Help!

Looks like normal machining for a flat plug seat, to me. Are they all like that? Could be a Timesert insert. https://www.youtube.com/watch?v=anjDQJtWFc8 Worth cleaning it up with a screwdriver since it looks like goop and paint on it at the moment. If it hasn't shifted by now I'd start getting more ...
by RobThomas
Sat Mar 23, 2019 2:19 pm
Forum: Series MM Register
Topic: Sidevalve head removal issues. Help!
Replies: 16
Views: 455

Re: Sidevalve head removal issues. Help!

2018-09-30 15.10.10.jpg
2018-09-30 15.10.10.jpg (120.25 KiB) Viewed 264 times
Threaded into spark plug hole and then the plate rests on top of the head studs. Tightening the threads above the plugs pulls the head up. Got enough head studs left???
by RobThomas
Sat Mar 23, 2019 1:27 pm
Forum: Bodywork
Topic: UFN 456 bootlid and lock
Replies: 3
Views: 164

Re: UFN 456 bootlid and lock

Might it be possible to get some braze in the holes? Might be able to them re-tap the holes to 2BA.
by RobThomas
Thu Mar 21, 2019 5:21 pm
Forum: Series MM Register
Topic: Sidevalve head removal issues. Help!
Replies: 16
Views: 455

Re: Sidevalve head removal issues. Help!

If you get really stuck...I'm a licenced Gunpowder manufacturer, amongst other things.


1/2 kg of fine grain Black Powder? That'll shift it. :D
by RobThomas
Sun Mar 17, 2019 4:50 pm
Forum: Series MM Register
Topic: Sidevalve head removal issues. Help!
Replies: 16
Views: 455

Re: Sidevalve head removal issues. Help!

No easy short-cut. Be careful since those USHM2 heads aren't easy to find. TDC, petrol, plug and a spark might get it to 'crack' the friction? Alternatively, filling the cylinder partially with grease and then winding the crank round fast to hydro-lock it? Neither sound appealing but might end up be...
by RobThomas
Sun Mar 17, 2019 10:29 am
Forum: General Discussion
Topic: Brake fluid theory
Replies: 7
Views: 270

Brake fluid theory

Just wondering about something this morning... I have an old, unopened Gallon jar of brake fluid that I was just about to throw away and it got me wondering. In THEORY water can leach in to just about anywhere to contaminate fluid, hence the short shelf life and even shorter service life. So, is the...
by RobThomas
Sat Mar 16, 2019 3:02 pm
Forum: Mechanical
Topic: Unblocking engine coolant drain tap passage
Replies: 12
Views: 397

Re: Unblocking engine coolant drain tap passage

Citric acid becomes much more vigorous if the water is hot. Maybe run the engine with the filler cap off (no pressure) and then pour in the crystals just before switching off?
The down side is that it might attack the radiator tubes if they are already a bit thinned down.
by RobThomas
Sat Mar 16, 2019 11:46 am
Forum: Mechanical
Topic: Spare bolt identification
Replies: 12
Views: 369

Re: Spare bolt identification

Starter is 3/8 UNF x 1 3/4, I think. 7/16 UNF x 2.5 for the main caps.
by RobThomas
Thu Mar 14, 2019 7:10 pm
Forum: Mechanical
Topic: Spare bolt identification
Replies: 12
Views: 369

Re: Spare bolt identification

Main bearing cap bolts?