engine losing power
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Car recently legally allowed on roads so went for a spin, as part of process engine was rebuild and carbs tuned etc.
On highway going up hill car lost power, requiring change down to get revs up to carry on, did this a couple of time on flat when reaching around 50mph.
My thoughts are,
1. lack of fuel, not enough pressure or supply
2. Blocked silencer restricting exhaust fumes ( the reason is that I could clearly hear something lose in silencer when rebuilding car).
Any thoughts on what to check, how do you test/clean exhaust silencer?
On highway going up hill car lost power, requiring change down to get revs up to carry on, did this a couple of time on flat when reaching around 50mph.
My thoughts are,
1. lack of fuel, not enough pressure or supply
2. Blocked silencer restricting exhaust fumes ( the reason is that I could clearly hear something lose in silencer when rebuilding car).
Any thoughts on what to check, how do you test/clean exhaust silencer?
- street
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most silencers are rebuildable, new material and some welding
checking fuel pressure is easier, and better to start with the basics. distributor advance, or heating up component?
checking fuel pressure is easier, and better to start with the basics. distributor advance, or heating up component?
Born, and brought home from the hospital (no seat belt (wtf)) in a baby!
Find out where the limits are, and start from there
Love your Mother
Earth
Find out where the limits are, and start from there
Love your Mother
Earth
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h20hamelan - Coveted Fifth Gear
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Fuel starvation from your description is certainly a possibility. Don’t neglect the simple things though eg. ensuring that you have full throttle travel of the cable happening at the carbs. Always difficult to do these types of diagnoses by remote control.
1970 Ford Escort Twin Cam
1972 Ford Escort GT1600 Twin Cam
1980 Ford Escort 2.0 Ghia
Peugeot 505 GTI Wagons (5spdx1) (Autox1)
2022 Ford Fiesta ST.
1972 Ford Escort GT1600 Twin Cam
1980 Ford Escort 2.0 Ghia
Peugeot 505 GTI Wagons (5spdx1) (Autox1)
2022 Ford Fiesta ST.
- 2cams70
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The first clue was that once I was safely off the road and took a look at the engine, I saw fuel leaking from the front bowl's vent. That told me that too much fuel was being admitted to the bowl, meaning the valve was probably either staying open or opening too much. I opened both bowls, removed the floats and with just weighing the floats in the palm of my hand, could tell that the one in question was much heavier than the other. I allowed it to drain and gave it a good shake just to be sure, then as I was only about two miles from home was able to drive back before it loaded-up again. A new set of floats got installed and it runs fantastically now.
1970 Elan Plus 2 (not S) 50/2036
2012 BMW R1200GS
"It just wouldn't be a complete day if I didn't forget something!" -Me
2012 BMW R1200GS
"It just wouldn't be a complete day if I didn't forget something!" -Me
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The Veg - Coveted Fifth Gear
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The other trick to identify a leaking float is to put it in boiling water. Where you see bubbles is where the leak is.
1970 Ford Escort Twin Cam
1972 Ford Escort GT1600 Twin Cam
1980 Ford Escort 2.0 Ghia
Peugeot 505 GTI Wagons (5spdx1) (Autox1)
2022 Ford Fiesta ST.
1972 Ford Escort GT1600 Twin Cam
1980 Ford Escort 2.0 Ghia
Peugeot 505 GTI Wagons (5spdx1) (Autox1)
2022 Ford Fiesta ST.
- 2cams70
- Coveted Fifth Gear
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- Joined: 10 Jun 2015
Re-Leaking float.
I wonder if ethanol was to blame?
Was this a plastic float or brass float? Other classic car marques have recently been noticing the the effects of ethanol on plastic floats that were specifically not made of ethanol proof plastic material.
Ethanol will also I understand over a period of time attack the solder used in the manufacture of the traditional brass carburettor floats.
Alan.
I wonder if ethanol was to blame?
Was this a plastic float or brass float? Other classic car marques have recently been noticing the the effects of ethanol on plastic floats that were specifically not made of ethanol proof plastic material.
Ethanol will also I understand over a period of time attack the solder used in the manufacture of the traditional brass carburettor floats.
Alan.
Alan
'71 +2 S130/ 5speed Type9.
'71 +2 S130/ 5speed Type9.
- alanr
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alanr wrote:Re-Leaking float.
I wonder if ethanol was to blame?
Was this a plastic float or brass float? Other classic car marques have recently been noticing the the effects of ethanol on plastic floats that were specifically not made of ethanol proof plastic material.
Ethanol will also I understand over a period of time attack the solder used in the manufacture of the traditional brass carburettor floats.
Plastic, purchased seven or eight years ago, I forget from which usual suspect but one of the ones in the USA. The new replacements were described as ethanol-resistant and I did notice that they looked a little different. Got fingers crossed for the resistance to be durable.
1970 Elan Plus 2 (not S) 50/2036
2012 BMW R1200GS
"It just wouldn't be a complete day if I didn't forget something!" -Me
2012 BMW R1200GS
"It just wouldn't be a complete day if I didn't forget something!" -Me
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The Veg - Coveted Fifth Gear
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Street
Most retro fit electronic ignition kits use the distributor springs and weights on Lucas distributors.
So you need to check what type is fitted
Although I suspect you have a fuel problem.
Good luck and please report your final fix
John
Most retro fit electronic ignition kits use the distributor springs and weights on Lucas distributors.
So you need to check what type is fitted
Although I suspect you have a fuel problem.
Good luck and please report your final fix
John
John
+2s130 1971
+2s130 1971
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Hawksfield - Fourth Gear
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