Search found 53 matches

by Bumpa
Wed Jul 21, 2021 10:45 am
Forum: MGB Technical
Topic: More newbie questions: Crankcase breather and oil pressure gauge flickering
Replies: 6
Views: 231

Re: More newbie questions: Crankcase breather and oil pressure gauge flickering

It's no great hassle to drain the radiator buy pulling off the bottom hose (unless you nhave a rad drain tap), flush with a hose until it runs clear and refill with a fresh mix of glycol antifreeze. Make sure the heater is on HOT so that can be flushed too. Be aware that if you have the radiator wit...
by Bumpa
Tue Jul 20, 2021 5:40 pm
Forum: MGB Technical
Topic: More newbie questions: Crankcase breather and oil pressure gauge flickering
Replies: 6
Views: 231

Re: More newbie questions: Crankcase breather and oil pressure gauge flickering

Oh, you can spend many a happy hour researching oils for your MGB. The crucial thing, it seems, is to have some ZDDP (a sort of zinc phosphate) in the oil. The MGB's old fashioned engine has a couple of sliding components, mainly the flat topped tappets and the rocker pads that shove the valves down...
by Bumpa
Tue Jul 13, 2021 8:13 pm
Forum: MGB Technical
Topic: Wheel and tyre size question
Replies: 2
Views: 164

Re: Wheel and tyre size question

On the MGB Hive website they also offer the 15" x 5.5" wheel with tyres fitted and they are using 185/65 x 15. That size should give you the same speedo readings as the standard 165/80 x 14 fitted at the factory. Ian is right about arch clearance being assymetric side to side. Most MGBs I ...
by Bumpa
Wed Jun 30, 2021 9:26 am
Forum: MGB General
Topic: Ignition light comes on when there is no key in the switch
Replies: 42
Views: 1621

Re: Ignition light comes on when there is no key in the switch

I think your car, being a late model, has an ignition relay. You say there are two relays next to the fuse board. One will be the starter relay and will have brown and white/red wires attached, the other might be the ignition relay in which case it will have one brown, two white and one white/brown ...
by Bumpa
Sun Jun 27, 2021 1:38 pm
Forum: MGB Technical
Topic: Rev drop when clutch engages
Replies: 3
Views: 408

Re: Rev drop when clutch engages

The first thing that springs to my mind is the crankshaft thrust washers. If they are worn then putting pressure on the flywheel by operating the clutch can cause the crankshaft to move forward by a couple of thousands of an inch which loads up the crankshaft bearings and con-rods. With the engine o...
by Bumpa
Sat Jun 12, 2021 8:22 pm
Forum: MGB Technical
Topic: Aerial on wing
Replies: 9
Views: 694

Re: Aerial on wing

Definitely take the splash panel off to see where you are. There is a small area between the door pillar and the wing support plate and you don't want it to go there. In front of the wing support is fine. Choose your position, I don't think there is a "right" position as these would have b...
by Bumpa
Wed Jun 02, 2021 7:51 pm
Forum: MGB General
Topic: mgb parts
Replies: 4
Views: 563

Re: mgb parts

MGB Hive also break cars and will supply odd bits they've salvaged.
by Bumpa
Thu May 27, 2021 7:47 pm
Forum: MGB Technical
Topic: EBC Brake pads - Dust and Squeal
Replies: 8
Views: 7124

Re: EBC Brake pads - Dust and Squeal

Regarding George's original post in which he complains about the brake dust, this could be exacerbated by the drilled and grooved discs. Apparently (or so I read) all those edges caused by the holes and grooves cause a cutting type of action on the pad which would cause more dust, and the pad will w...
by Bumpa
Tue May 25, 2021 8:15 pm
Forum: MGB Technical
Topic: Bonnet options ?
Replies: 9
Views: 1669

Re: Bonnet options ?

Mine wouldn't close by dropping. The rule is never press in the centre above the grille badge. Use both hands and push evenly on both sides of the front edge.
by Bumpa
Tue May 25, 2021 8:09 pm
Forum: MGB Technical
Topic: Headlight issues
Replies: 1
Views: 436

Re: Headlight issues

Main and Dip are on entirely different feeds from the flash. The flash gets its power via a purple wire direct from the bottom fuse in the fuse box. The ordinary headlights are powered through the main light switch via a brown wire that comes unfused directly from the battery. Then a blue wire takes...