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MG Midget and Sprite Technical - Midget Dizzy

well i took my 1500 along to the mot man today after about 6 months of tinkering. she passed with only to notes (wheel bearing and slight kingpin movement). Unfortunately, on the way home, i broke down. a bit of searching found that the dizzy had seized, and wasnt turning with the engine. i removed it and freed it. quick refit and she fired up with no problem. i think its time for a new dizzy. i have been having a look at some and found this one

http://cgi.ebay.co.uk/MG-midget-1500cc-AccuSpark-electronic-distributor-/390264512142?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item5add93de8e#ht_2205wt_1139

anyone used these before?

cheers
Rich K

Hmmm .... normally a seized dissy would require the teeth on the drive gears to break in order to be static with engine turning...

A
Anthony Cutler

Agree with Anthony,

Unless the clamp had loosened up allowing the body of the dizzy to lift enough for the dog tooth connector to disengage from the drive shaft.
Guy

It's more likely to that some idiot has 'mullered' the dizzy pedestal so the dog wasn't properly fully engaged when it was clamped up.

I saw this recently on a customer's vehicle.
Deborah Evans

Rich - to answer your question - accuspark are a pretty well regarded company, and plenty of people run their systems with great success.

Before fitting it however, make sure that you have a matching coil - it will save you more work in the long run!

Glad you passed your MOT and are still enjoying tinkering with the car.
rachmacb

Hi Rich! I have just fitted an accuspark dizzy and sport coil from e-bay to my 1275! its been working great! If you look to buy a coil too as a package its a great price! Defo recommend!

steve


s j knox

A 1500 requires a ballasted coil. The ballast resistor is built into the +ve IGN feed to the coil (White wire).

If you fit a non ballasted coil you will get a weak spark and possible running problems.

This can be overcome by putting in a new IGN feed but you would also have to disconnect the 12v Starter 'Jump Feed' to the coil (White/Green wire).
Deborah Evans

Accuspark do a ballasted coil for the 1500. I think it's the new blue one they're were plugging at Silverstone.

Les
l snowdon

hi all. it was odd with the seized dizzy, when cranking the engine (with the cap off) the lug didn't move, when i removed the dizzy, i couldn't move the shaft by hand. i used pliers on on the shaft to free it. once it was back in, the car fired up, and i managed to being the car home.

i think i might as well replace it, dont want it to happen again.
i noticed that there is a coil and dizzy deal, and it states
"in order to fit the AccuSpark High power coil the Midget ballast wire will need to be bypassed Remove the 2 white/green wires from + side coil and tail off . Run a new feed from non fused side of fuse box ( white wire ) to + terminal of coil "

are there any issues with removing the ballasted supply/feature?

plenty more tinkering to do :D

i was also pondering about fitting megajolt to the midget, but i'm guessing because it is standard, it wont really do anything


then i have to fix my mini, it never ends :D
Rich K

This thread was discussed between 07/07/2011 and 09/07/2011

MG Midget and Sprite Technical index

This thread is from the archive. The Live MG Midget and Sprite Technical BBS is active now.