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300/66 Series General Forum for the Volvo 340, 360 and 66 cars |
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340 1.4 rough ans slow idlingViews : 57074 Replies : 219Users Viewing This Thread : |
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Jun 22nd, 2021, 21:40 | #91 |
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Probably just a few months. Certainly not years.
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Jun 22nd, 2021, 22:22 | #92 |
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That should be ok , but fuel does go off a lot quicker than it used to , the active spirit tends to evaporate off a lot quicker now.
do you find when you have left the car for a week or two you have to wind it over on the starter whilst the pump refills the carb float chamber?
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Jun 22nd, 2021, 22:26 | #93 | |
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Jun 24th, 2021, 09:31 | #94 |
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Jun 24th, 2021, 10:45 | #95 | |
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Quote:
E10 petrol is not cleared for a limited number of S/V40 models with petrol engines produced in the mid-1990s with engine type 1.8 GDI.
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Jun 24th, 2021, 10:54 | #96 | |
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Jun 24th, 2021, 11:02 | #97 |
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The old mini together with volvos up to 1974 are a classic case of valves seating directly on the cast iron head , They have had Unleaded for some decades now so most will have had new seats by now if they do any kind of mileage . Just make sure the rubber hoses are renewed with current hose to be safe . Alloy heads from the period will be ok as they came with good quality valve seats to start with .
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Jun 24th, 2021, 12:03 | #98 |
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Super unleaded will remain capped at 5% ethanol (E5) and that will be much better for both your 340 and your Mini as it's 98 octane so less chance of pre-ignition/pinking/detonation or any of the other names it's known by. It will also give you better economy/power as the timing can be set to standard instead of retarded for 95 unleaded.
Like Clan says, the rubber components are the ones that you need to watch out for, primarily the hoses which (from what i can ascertain) need to be R9 rated to cope with increased ethanol content. https://www.thehosemaster.co.uk/r9-u...ive-fuel-hose/ Over time, you may find the diaphragm in the fuel pump and/or the fuel pump needs replacing as a result of the ethanol in the fuel.
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Jun 24th, 2021, 12:22 | #99 |
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I've never touched the timing on the 340, not even looked at how to do that.
I do have a new 340 1.4 fuel pump in stock though! |
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Jun 24th, 2021, 13:28 | #100 |
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Might pay to investigate that then, not sure when electronic ignition was first fitted on the 340 but if the timing is out due to wear and/or incorrectly set points gap/dwell then it will run rough.
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