1965 MG Midget Engine fault

1965 MG Midget Engine fault

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Discussion

ChrisDU

Original Poster:

4 posts

57 months

Thursday 23rd January 2020
quotequote all
Hi All

I have had a problem with my 1098 Midget since November. It is progressively driving me mad as i have now exhausted most avenues.

The fault: the car starts ok and seems to run ok until it gets up to temperature and it then cuts out and won’t restart. I have: replaced the fuel pump and checked the fuel lines, replaced the carb valves and gaskets and centred the jets. I have replaced the distributor cap, leads and spark plugs and replaced the coil checking its resistance. It runs ok until it cuts out....

I hadn’t been using a fuel additive but corrected this to make sure that it wasn’t an octane level issue. I have a very patience wife but she sees the receipts! I need to fix.

Does anyone have any words of wisdom/new ideas?

Many thanks

Chris

wildoliver

8,950 posts

222 months

Thursday 23rd January 2020
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Condenser?

thisisnotaspoon

177 posts

177 months

Friday 24th January 2020
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Ignoring the upto temperature bit and thinking in terms of things that cause it to cut out after a while and not restart.

Fuel tank breather blocked? Could be temp related as the choke would mask it a bit. Easy to rule out, it'll run fine with the cap off.

Or massive cooling issue causing it to partially seize, but focus on the easy and less damaging ideas first!




ChrisDU

Original Poster:

4 posts

57 months

Friday 24th January 2020
quotequote all
Thanks, useful tips. I’ll give them a go. I have CSI electronic ignition so probably not the condenser but i am worried that it might be in the distributor. I understand that these units are pretty reliable.

Looking at it last night, it looks as if the rear carb fast idle cam is out of position for some reason. I will correct as well.

Chris

ChrisDU

Original Poster:

4 posts

57 months

Sunday 26th January 2020
quotequote all
I seem to have fixed the problem so thanks for the help. Combination of a faulty fuel pipe and a dodgy rotor arm. Two faults, always tricky to track.

Chris

Martin350

3,783 posts

201 months

Monday 27th January 2020
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Just out of curiosity, what was wrong with the fuel pipe?

ChrisDU

Original Poster:

4 posts

57 months

Monday 27th January 2020
quotequote all
It was the pump not the pipe. Predictive text problem

Martin350

3,783 posts

201 months

Monday 27th January 2020
quotequote all
Haha, ok, thanks!