Search found 60 matches

by Bumpa
Sun May 02, 2021 9:46 am
Forum: MGB Technical
Topic: Running on suddenly.
Replies: 19
Views: 4493

Re: Running on suddenly.

You should try retarding the ignition slightly, something below 12 degrees, perhaps 10 BTDC for example. Going up from 12 to 15 will make it worse. MGB engines are well known for running-on, especially on modern fuels.
by Bumpa
Thu Apr 29, 2021 11:57 am
Forum: MGB Technical
Topic: Window Winder Handles
Replies: 8
Views: 1902

Re: Window Winder Handles

Feeling rather pleased with myself as I mastered Designspark and have printed the window handle spacer as shown. I have used some light grey PLA that I happened to have as my car has grey trim, but it could be printed in any colour. Its a bit pale in colour but looks fine to me and took 2 hours to p...
by Bumpa
Mon Apr 26, 2021 9:42 am
Forum: MGB Technical
Topic: Window Winder Handles
Replies: 8
Views: 1902

Re: Window Winder Handles

Thanks Ian. I have tried inserting a washer between the handle and the hexagon but to achieve enough clearance the handle no longer contacts the hexagon securely. The car has aftermarket chrome handles, so maybe that's the problem. I am going to try and make spacers like Paul recommended. Having had...
by Bumpa
Sun Apr 25, 2021 7:36 pm
Forum: MGB Technical
Topic: Window Winder Handles
Replies: 8
Views: 1902

Re: Window Winder Handles

Paul, that's really helpful. Thanks. I didn't know such things were available. I note that the ones from the US are 3D printed. I have a 3D printer but am not too clever with design programmes. I must have a go at those.
by Bumpa
Sun Apr 25, 2021 5:33 pm
Forum: MGB Technical
Topic: Window Winder Handles
Replies: 8
Views: 1902

Window Winder Handles

The plastic winder handles on my MGB are tight up against the covering of the door cards so that turning them is marking the vinyl. I have tried putting a large washer inside the handle but that has the effect of disengaging the handle from the hexagon on the mechanism. I notice that on the RV8 the ...
by Bumpa
Sun Apr 18, 2021 9:59 am
Forum: MGB Technical
Topic: Light knocking noise in the engine.
Replies: 27
Views: 5901

Re: Light knocking noise in the engine.

What a fascinating puzzle!
by Bumpa
Fri Apr 16, 2021 9:04 pm
Forum: MGB Technical
Topic: Light knocking noise in the engine.
Replies: 27
Views: 5901

Re: Light knocking noise in the engine.

Clearances in engines are much closer than you would think. I woked on an engine where the crank webs were within a few thou of striking the block casting. Dredging my memory, aren't the con rods designed to be only way round? Could yours have been installed the wrong way round, I mean with the fron...
by Bumpa
Sun Apr 11, 2021 12:09 pm
Forum: MGB Technical
Topic: Dragging disc brakes
Replies: 22
Views: 4915

Re: Dragging disc brakes

What age is the MGB? What kind of brake light switch does it have, the hydraulic one plugged into the four-way union, or the mechanical one operated by the pedal? If the latter type, it is not unknown for the switch to be holding the pedal from reaching its rest. Try unscrewing the switch and see if...
by Bumpa
Wed Apr 07, 2021 8:12 pm
Forum: MGB General
Topic: new to forum
Replies: 5
Views: 1647

Re: new to forum

I don't want to be a doom merchant, but you appear to have corrosion in the lower rear fender. The sill, which is the structural part of the car, runs from the front wheel right back to the rear wheel, so large parts of it are hidden behind the fenders. Rust on the outer panel usually means the sill...
by Bumpa
Sun Apr 04, 2021 10:17 am
Forum: MGB General
Topic: MOT Exemption.
Replies: 24
Views: 18032

Re: MOT Exemption.

That would be right. The computerised MOT history only goes back to 2006. Since your car hasn't had a test in all that time the record is correct. When I put my Dolomite back on the road after 26 years laid up, the same thing happened.