Lotus Europa Community
Lotus Europa Forums => Garage => Topic started by: califkid_66 on Saturday,August 05, 2023, 07:44:12 AM
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Changed my pump last year and it’s not working anymore decided to open it up to see what was wrong
In the picture you have the sev valve and the plastic one is the reproduction the plastic warped I don’t know if it was the fuel or heat causing that I heated it up to straighten it but it didn’t work
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Maybe alcohol in the gas?
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Yup. Some premiums are ethanol free.
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That’s it for me I’m installing my facet electric pump !!
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Fit an inertia switch as well.
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Yup. Some premiums are ethanol free.
In Nova Scotia, the last available ethanol-free premium fuel was taken off the market last month. Ethanol in everything here, now.
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That’s it for me I’m installing my facet electric pump !!
Let us know how it goes. I've been thinking lately of switching to an electric pump also.
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Yup. Some premiums are ethanol free.
In Nova Scotia, the last available ethanol-free premium fuel was taken off the market last month. Ethanol in everything here, now.
Do you have a general aviation airport near you? Avgas is 100 octane, leaded, with zero ethanol allowed. That's what I ran in 693R (yes, more $$$), but never had a problem.
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If you aren't a pilot, is it hard to get general aviation airports to sell avgas to us? I have a regional airport near me, small jets to nearby states. I imagine the security there would frown on me driving over to the gas facilities. But maybe not; I haven't tried it yet.
According to Pure Gas, the nearest non-ethanol automotive gas is about 45 minutes away.
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If you aren't a pilot, is it hard to get general aviation airports to sell avgas to us? I have a regional airport near me, small jets to nearby states. I imagine the security there would frown on me driving over to the gas facilities. But maybe not; I haven't tried it yet.
According to Pure Gas, the nearest non-ethanol automotive gas is about 45 minutes away.
Depends on the operator. Some look the other way and sell gas to whomever. Larger fields (ie with commercial airline traffic are, understandably, a lot more restricted.) Believe or not, lots of the smaller fields have self-serve...so...whomever pulls up to the pump can fill up.
YMMV. I'm lucky, I guess, that my field has self-serve. Caution though: the nozzle is BIG and the fuel flows quickly (typically, most GA planes hold 50-75 gal of liquid gold...and the standard size nozzle would take forever to pass the amount of gas to fill the large tanks...)
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Kendo, I see that you too are in Nor Cal. For my home made race car I use Sunoco Optima 95 race fuel. I have to drive a couple of hours to Fairfield to buy it in 5 gallon jugs. They have a good selection of race fuels in stock. There are other outlets in and around Sonoma Raceway/SF.
https://www.sunocoracefuels.com/fuel-finder?city=&state=&zip=95460&cat=&range=300
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My S1, thanks for that link. I go to Davis fairly regularly, so that wouldn't be much out of the way.
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Try the Ramos Sunoco outlet in Sacramento;
RAMOS OIL COMPANY
1515 South River Road
West Sacramento CA 95691
Phone: 800-477-7266
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I just reassembled my fuel pump and it’s working
I just noticed that the o ring was swollen and after a couple of days it shrunk back to its original size and it’s working perfectly
Something made my o ring swell and caused the fuel pump failure
I’m running 94 premium fuel it’s not supposed to have ethanol in it
Do I need to have fuel with ethanol or use lower grade fuel
The engine runs great on 94 I fueled 87 once and the engine didn’t like it
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Here is a good start for choosing a proper or better o ring . I pulled up skydrol because it’s the most nasty hydraulic fluid known to man. I believe if you will be happy.
https://www.efunda.com/designstandards/oring/oring_chemical.cfm?SM=none&SC=Skydrol%20500
Dakazman
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Wow thanks that’s pretty interesting but still wondering what made it swell up I ran that pump almost one year always fueled at same place
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That o-ring is going to fail again. It is either not compatible with gasoline, or perhaps an additive such as ethanol. Either way, it is the wrong material. The current o-ring may be nitrile, which is commonly used in gasoline applications, but is not compatible with ethanol. Viton o-rings are a good choice for all automotive fuels, and have very good resistance to swelling in the presence of ethanol.
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I’m not sure but I just read that where I fueled they have supreme and supreme+ the difference between them is supreme + was formulated for modern cars and have cleaning agents and additives
I was using supreme +
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I just went to the gas station the guy with the tanker was there I told him my problem he said that about 4 months ago they started putting ethanol in all their fuels including supreme and he had the same problems on his tanker he said the seals on the transfer hoses where they connect started to leak so they had to change them with another type of seal
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I just went to the gas station the guy with the tanker was there I told him my problem he said that about 4 months ago they started putting ethanol in all their fuels including supreme and he had the same problems on his tanker he said the seals on the transfer hoses where they connect started to leak so they had to change them with another type of seal
As Baiinford said previously...look for someone supplying Viton seals. They seem to be working better for the crap the oil companies are being forced to sell by cutting what passes as gasoline these days with ethanol.
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I could change the o rings but I don’t think I could find valves they seem to be made of the same material I already have a facet fuel pump might as well install it
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I changed the mechanical pump some while ago to a Facet (plus inertia cut out) and the improvement in starting is incredible. Can't help thinking about the effort to get fuel up to the greedy carbs. Time and time again I have heard the starter beginning to slow after much cranking. Hence the change.
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Forgot to say. Also fitted a pressure regulator adjusted to the correct pressure.
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Where did you install your pump I’m planning to install it same place as BDA suggested inside the frame rails out of the way and very low
I have a friend who installed his pump on the frame rails and for power I read of connecting to the battery with a relay he made it really simple
He connected to the positive of the alternator regulator put a fuse between pump and regulator
the positive on the regulator has no power until you turn on the ignition
He ended up with one wire fuse pump and ground instead of batt to relay and all the wiring
I’m thinking of taking my power from same place but go through oil pressure sensor and inertia switch
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Could anyone tell me what the correct manufacturer and part number should be for an S1 1967 mechanical fuel pump? I believe the Lotus number was A054 E 6075 and replace by A065 E 6000. Was it originally made by Ducellier?
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Not sure for s1 but for my s2 it was a S.E.V. Marchal mechanical fuel pump I couldn’t find a rebuild kit or a new one So ended off buying a knockoff
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Hi. Re No. 23. Sorry for late reply. I mounted the pump on a bracket you'd normally see in a competition car which also houses the inertia switch and pressure gauge. The only place suitable was to the rear of the airbox. When it came to re-fitting the airbox, there wasn't room!
The only solution was to remove the far end of the airbox and reverse it so that it was drawing air from the front of the engine bay. I have noted no reduction in engine performance as a result of the change round.
I will try to up-load some pics later on to explain visually. Also worth noting that I removed the mechanical pump with a blanking plate to close off the aperture.
Hope this helps.
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Having problems up-loading the pics. If anyone wants them, send me an email and I will forward.
richard-wilkins@hotmail.com
Thanks.
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If your problem up loading pictures is their size, here is one way to fix it:
http://www.lotuseuropa.org/LotusForum/index.php?topic=1379.0
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I installed the fuel pump just under the trunk insert. When water in the gas was a problem due to leaky fuel tank tops, I had a marine fuel/water separator mounted to the bolt in cross member. There is a lot of room to do what you want with your fuel system here.
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These are the pics of my elec fuel pump installation.
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By all means use a pressure gauge to set up your fuel pressure. After it is set though, please remove it and plug the port.
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Thanks for the comment re the removal of the gauge. I've heard this before but conversely, I have seen them left in a few road cars and competition cars. Open to help on this one. Is there a known problem with leaving them in please? Are they prone to leakage?
Thanks in advance.
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Yes gauges can fail, and they fail much, much more often than a solid brass plug. Worse, its position is perfect for spraying leaking fuel all over the engine compartment.
So, is it going to fail? Probably not. Could it fail? Maybe. Is fuel pressure something that needs to be monitored constantly? No.
Therefore best practice is to set up your pressure and then remove the gauge and fit a plug.
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Thanks for your points which are well made. I will take the necessary precautions and remove it. Thanks again.