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Discussion Starter · #1 ·
Hello all,

I just imported a fantastic low mileage Metro. The car is a time warp.... it looks incredible (12700 original miles.....now 13100!) and drives extremely well (drove it home 375 miles from the USA port of Charleston back home!).

There is only one slight thing that I have noticed. On occasion, when pulling away from rest, it hesitates unless I give it a good rev. There is no hesitation ever at any other speed that I have noticed.

In the past, with my other cars, similar symptoms indicate a blocked fuel filter....and this has resolved the problem every time.

I read my Haynes manual (and looked in the engine compartment) and both indicate that there was NO fuel filter on a carburetted model! Can this be true? I've never heard of a car without a fuel filter. If so, please advise as to any thoughts you might have. Also, would there be any issue with me adding one inline (a filter and a few inches of new rubber fuel line would be all that would be necessary) as I would think that could only be a benefit to the car?

Cheers,
Julian
 

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Discussion Starter · #3 ·
Thanks.....just happened to be online when you posted. I probably will fit one. That said, I have several classics and all had fuel filters as standard, even my old Reliants (albeit tiny ones)....so it just really surprised me!

I am wondering if a spec of something has come up to the carb causing this. Or perhaps older rubber lines that are delaminating slightly inside? I will probably replace those too. Any other ideas, let me know.

Julian
 

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rover_45
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It will certainly be worth removing the carb & cleaning it - there will doubtless be some detritus in the bottom of the float bowl. But make sure you have whatever gaskets are required before you start.
 

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mg_tf
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Hello Julian,
Your Quest is basically the basic 1.1 (C) with some added goodies and stripes. The first thing I would suggest you do is to give the car a comprehensive service - obviously including removing and cleaning the carb. dashpot. Treat it to a new set of plugs (suggest NGK), air and oil filters, cambelt assembly ( unless known to have been done recently), and alternator belt.
Once you have done this, you should then adjust the mixture via. the largish mixture screw that the Haynes manual will explain.
The hesitation you describe is a ‘flat spot’ and should disappear once the mixture is correctly set.
Incidentally, I have an 18K 1992 1.1c - totally unmolested, and with a full set of ‘don’t have’s’ and that had exactly the same issue.
Kind regards,
Austin.
 

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Discussion Starter · #6 ·
Thanks rqt and Austin.....

I will eventually get to pulling the carb off and cleaning it out. That's a good point about being sure I have all gaskets available......I'll have to see where to get those. I understand it is a KIF carb...modified from the HIF carb that I have on my MGB. Maybe I can get the gaskets stateside from a SU carb specialist? If not, I will try to find somewhere in the UK.

Austin......I'll read up on the mixture setting. I would think that it can't be too far off. It starts on the button and gets great miles per gallon. But it can't hurt either....and clearly you had a similar issue with the same car!!

Thanks again for both replies......really do like this car....I remember the early Austin Metros from when I was a kid in the UK.....just happened to go for the slightly newer Rover version!


Cheers,
Julian
 

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mg_tf
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Thanks Julian,
I think your hope is/was that this flat spot is associated with fuel filter partial blockages. Simple logic would dictate that this cannot be, since it wasn’t equipped with a fuel filter from new - so it cannot block! Following this through, the SU carb. has jets like hose pipes, in comparison with other carbs. so even if some debris got through, it’s far less likely to cause issues. I’m sure you realise that fitting one isn’t going to improve your flat spot in this case.
Back to my recommendations ( and gaskets shouldn’t be needed in this case) simply treat the car to a comprehensive service - obviously including air filter, and removal, and cleaning the carb. dashpot. Some corrosion residue may be an expected find due to the car‘s lack of use.
With mine, I was reluctant to drive it anywhere until the cambelt had been renewed, and I would suggest the same with yours, unless you have proof of it being replaced within the last 5 years.
Back to flat spots, I would not be tampering with the mixture until everything else has been done, and the car then taken for a 10 mile run.
OK it starts well - but it would, since it needs choke, and basic idle mixture adjustments would not apply.
Good luck with sorting it out.
 

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97 BRG MGF. 2009 SKODA SUPERB.
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Hello all,

I just imported a fantastic low mileage Metro. The car is a time warp.... it looks incredible (12700 original miles.....now 13100!) and drives extremely well (drove it home 375 miles from the USA port of Charleston back home!).

There is only one slight thing that I have noticed. On occasion, when pulling away from rest, it hesitates unless I give it a good rev. There is no hesitation ever at any other speed that I have noticed.

In the past, with my other cars, similar symptoms indicate a blocked fuel filter....and this has resolved the problem every time.

I read my Haynes manual (and looked in the engine compartment) and both indicate that there was NO fuel filter on a carburetted model! Can this be true? I've never heard of a car without a fuel filter. If so, please advise as to any thoughts you might have. Also, would there be any issue with me adding one inline (a filter and a few inches of new rubber fuel line would be all that would be necessary) as I would think that could only be a benefit to the car?

Cheers,
Julian
Check the oil in the carb dash pot.
 

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Discussion Starter · #9 ·
Thanks for all of the tips everyone.

Fortunately, I have a full set of paperwork for the car. The cam belt was replaced October of 2020, along with the water pump, and obviously coolant, at the same time. The alternator belt was replaced the week prior to me getting it also.

So, barring those items, I will try items mentioned above.

Air filter---is it used by any other cars that you are aware of (hoping to source it in the US)?

Julian
 

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Discussion Starter · #10 ·
Finally got a chance to look at it last week. The dashpot oil was indeed low, and I think that has cured it. I did an oil and filter change also, so that is now done.

I would like to change the transmission oil, but I think the book only states 80/90W oil.....should it be GL4 or GL5? I use GL4 in all of my older classics (Imp, Reliant, MG, etc..) as it is supposed to be safe with "yellow" metals (bronze, brass, etc..). Any idea which to use?

Thanks,
Julian
 

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mg_tf
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Hello Julian,
Have you now road tested it again with the engine up to operating temperature to confirm the flat spot has indeed disappeared.

p.s. A a matter of interest, does your 1.1c have a rear wiper?
Many thanks,
Austin.
 

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Finally got a chance to look at it last week. The dashpot oil was indeed low, and I think that has cured it. I did an oil and filter change also, so that is now done.

I would like to change the transmission oil, but I think the book only states 80/90W oil.....should it be GL4 or GL5? I use GL4 in all of my older classics (Imp, Reliant, MG, etc..) as it is supposed to be safe with "yellow" metals (bronze, brass, etc..). Any idea which to use?

Thanks,
Julian
I don't know the definitive anser on gear oil, but I do know GL5 is not a good idea on many older cars, so it would be safer to stick with GL4.
 

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Discussion Starter · #13 ·
Thanks for the reply on the gear oil......I would tend to agree, but will wait to see if anyone else responds. Plus it will be a while until I can get to it due to work.

Anyway, to answer your question Austin.....I drove it about 40 miles today and I no longer felt any hesitation, so I think I've cracked it!

My car has no rear wiper......just a blanking plug. I thought about, for the heck of it, trying to source some of the different options available to the car, but I think I will keep it standard as it is such a good example. The one exception being a radio.....I sourced an as new Rover radio that would be correct for the car, and will fit it when it is shipped (got to have some music!). It turns out that they make cassette tapes that are bluetooth compatible and will transfer the music via my phone to the Rover radio, so I already have that at home!!

Cheers,
Julian
 

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mg_tf
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Glad you’ve got the flat spot sorted Julian. If it were mine, I would still be removing the dashpot, cleaning the interior bore, and removing any deposit on the needle -if any - before re topping up the dashpot, and finally adjusting the mixture following at least a five mile run. Many thanks for the info on the rear wiper. My otherwise bog standard 1.1c is fitted with a rear wiper, and now believe this was a factory option fit at the point of ordering.
Of course, fitting equipment which was not originally fitted is at the choice of the current owner, and we all have different takes on this. In my book, I firmly believe in leaving good examples unmolested and as they were, to preserve originality - which is only available once! - but as I say, we are all different.
Kind regards,
Austin.
 

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Discussion Starter · #15 ·
Austin,

I too like to keep things original, as I have on my other cars.

I figured the radio I am installing was an original option, and, as the blanking plate could be put back in place at any time in 10 minutes, that it is fine. Also, I am leaving the original loom for wiring intact, and running my own wires which will not involve any cutting. Lastly, I've also chosen not to disturb my as-new door cards (which would mean cutting a hole for a speaker in them behind the plastic grill), and chose instead to mount rear speakers only using the existing 4 screw holes put there by the factory!!

OK...I am sometimes a bit fanatical.....

Julian
 
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