MG-Cars.net

Welcome to our resource for MG Car Information.

Recommendations

Parts

MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo.

MG Midget and Sprite Technical - engine refitting

Hello,
Engine is now in the midget. The bonnet not yet.
I have 3 questions:

1- the car is a GAN1 with alternator.
the coil is plug to the condensator of the distributor for one side. and for the other side, a white wire goes to the fusebox.
I have to plug my electric tacho, but do not remember where it was pluged. I tried to plug at the same connector than the white wire on the coil, but it does not work.
Before trying to plus it on the connector wich connects the condensator's distributor, I prefer to ask for advice, cause I am not sure it will not cause damages to the condensator.
Any advice?

2- I have change the head gasket and the collector gasket. But each time I fire the engine, a smoke comes from the engine at the collector side.
I have tightened the more I can the collectors to the head, but it still smokes.
Any advice?

3- one time, when I accelerate a lot to see the response of the engine (I was adjusting the SUs), I received on the windscreen 5-6 small drops of coolant.
Perhaps it only is coolant on the belt wich have been put away with the acceleration.
But could it be something else?

I just start the engine and let it run at iddle 15min and there is o sign of overheating. The needle is stabilized between C and N on the dial.
When starting first time, the oil pressure was 70 PSI and at the stabilized temp at idle it was 40 PSI. There is a good response when I accelerate with the needle going more than 60 PSI.

Laurent
ld derancourt

1-
i had the same problem and just tried both noting broke and eventualy my tacho worked (but i do not remeber if it was with + or -)

2-
it is usual to have some smoke come from the exhaust when it has been removed and refitted
it is just the greas on the pipes witch burns off
bad exhaust connections are heard better than seen

3-
check the bypass hose between block and head and all other connections
Onno Könemann

Agree with Onno completely, Id let er idle a good 1/2 hour with a close eye on everything, that will work out any air bubbles and allow any potential problems to surface to the top....BTW if you used new water hoses, retighten after an hour then agian after 15 hours of run time, they like to relax a bit as they get used, and need retightening....least that always happens to me


Prop
Prop***The End in 2012

Hi
after several starts, the smoke disapeared. So not a problem in fact.
I have run the car during 30 miles in the landscpae with a lot off hills (7%). I leave in the center of France with mountains at 1500m. So it was a good test.
No overheating (hte needle did not go aver N on the dial).
Good oil pressure.
Car runs very well, but loose oil at the rear (normal I know).
The coolant is at the same level so no leak.

I still have a noise: certainly the old waterpump. The new I have on stock is too long (certainly a high flow waterpump). I have to buy a new one but at the good lengh.

I will try to connect the tacho on the second connector of the coil.

It was my first top down cruise of the year and my wife drove during half the travel.
Every time she wants to sell the car cause I take more time with the car than with her, I give her the steering wheel. And after half an hour, she says, It will be stupid to sell it!!!!!!.

Have good cruises with you spridget

laurent

ld derancourt

Laurent

I think your tacho should be connected as all early cars with electronic tachometers are

There ought to be a connector in the white wire behind the fascia ( a rubber coated bullt type connector which has a male and female end at the junction) these are the usual connectors at the tacho and together with a green wire should make the tacho work, as in the drawing I have done

This is how my GAN3 car works, I think yours should be the same



Bill sdgpm

Laurent

There are 2 types of tacho:

1 - early
These have a current (wire) loop on a small block; it's the white/black wire from the coil to the dissy that needs to make a loop here

2 - later
These have a connection (like a spade or bullet), since they arer voltage (not current) sensing. On later cars, the white/black wire goes 2 ways: coil, dissy and rev-counter.

All after market tachos are volt sensing.

HTH

A
Anthony Cutler

how mutch oil does it leak from the back?

mine did to and i ended up with a complete rebuild.....
Onno Könemann

tacho is now fitted on the coil.

there is a leak on the front pushrod tapet. I have tightened it a little bit more.
How much it leaks? No idea at that time.

I had a problem cause when I stop the car the engine 'dies'. No noise, no sign, just the engine stops before the car.
And after that, it was very difficult to start the engine again.

I have work on the jet adjusting and the fast iddle screw too.
I have tried with the synchro tool. But to have enought idle, I have to force the induction. I do not succed in synchronize the SU with the red float in the B range of the tool (For those who knows this type of tool).
I will try the car tomorow to see if it is better.

laurent
ld derancourt

This thread was discussed between 05/04/2009 and 06/04/2009

MG Midget and Sprite Technical index

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