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Car Forum / Australian Car Forums / General Car Topics (Australian group) / January 2008Extended idle periods.
Spent today leaving the 'lux running at idle for most of the day. I suspect puts the Hahahaha Honda 4 stroke petrol 240V generator to shame for fuel usage. For my needs, I've just fully charged two spare car batteries using jumper leads while at the same time. Currently have four appliances plugged into the 300W inverter. Inflated my kiddy swimming pool twice (it bleeds air at a rate a blaoon in the sun does), using the 12V air compressor. Speaking of which time to go back to it and watch the sunset :-p This, I guess is the point in time where oil changes should be hourly timed, rather than distance related. >This, I guess is the point in time where oil changes should >be hourly timed, rather than distance related. This is the point where you cross all your fingers and toes and prostrate yourself before the great diesel god! If it were a proper truck the ECU would've shut it down after five minutes at low idle, so it wouldn't be issue. Such is the aversion most major engine manufactures have for extended idle periods, which they consider to be a major cause of bore glazing. Changing the oil isn't a cure though changing the brand can often help. And there's always Bon Ami -- a google search on *bon ami bore deglaze* should provide the general idea. My New Year's resolution is never to do either... idle an engine for long periods, or resort to the "mandrake powder" trick. :)  SignatureJohn H > >This, I guess is the point in time where oil changes should > >be hourly timed, rather than distance related. [quoted text clipped - 13 lines] > My New Year's resolution is never to do either... idle an engine for > long periods, or resort to the "mandrake powder" trick. :) It's been done believe it or not. Exit the engine involved,...and after a major overhaul. With the Camry which has 190,000ks +, I always give it a rap out to 4500 rpm in 1st or second every trip, to blow the cobwebs out. Jason >> This, I guess is the point in time where oil changes should >> be hourly timed, rather than distance related. > > This is the point where you cross all your fingers and toes and > prostrate yourself before the great diesel god! LOL :-) > If it were a proper truck the ECU would've shut it down after five > minutes at low idle, so it wouldn't be issue. Such is the aversion > most major engine manufactures have for extended idle periods, which > they consider to be a major cause of bore glazing. Is the bore glaze because of low engine load, or low engine speed? > Changing the oil isn't a cure though changing the brand can often > help. And there's always Bon Ami -- a google search on *bon ami bore > deglaze* should provide the general idea. Yep, I found a information about a product that removes the glaze, which is non abrasive unlike other products can be. Bon Ami I might not ever use that one. :-) Anyway, it's going for a shopping trip today into Orange, then on the weekend a long road trip. It's actually spent a lot of time at idle during it's life. Shiteney trafic is such now that to go anywhere from where I live sees it at idle most of the time. > My New Year's resolution is never to do either... idle an engine for > long periods, or resort to the "mandrake powder" trick. :) Not heard of that. Kinda like a handfull of ajax in the air intake? > Is the bore glaze because of low engine load, or low engine > speed? No load mainly. At idle there is little load, and the rings don't get forced against the bore walls. -- Regards, Noddy. >> My New Year's resolution is never to do either... idle an engine for >> long periods, or resort to the "mandrake powder" trick. :) > >Not heard of that. Kinda like a handfull of ajax in the air intake? As I remember it, the Bon Ami my mum used to use when I was kid was much like Ajax... the main active ingredient being fine sand. :) Rumour had it that you could once buy Bon Ami under a Caterpillar part number, but I've never actually checked. IIRC it was in the factory service manual for a D2 that I last saw a credible reference to its use as a deglazing agent. Remove the injectors and drop a teaspoonful down each hole, reinstall and run the engine, being something along the lines of the recommended method. SignatureJohn H >>> My New Year's resolution is never to do either... idle an engine for >>> long periods, or resort to the "mandrake powder" trick. :) [quoted text clipped - 12 lines] > and run the engine, being something along the lines of the recommended > method. I remember doing something similar with a mates Camira that he was trying to sell. Slowly sprinkle a teaspoon of Ajax down the carb with the engine running at about 2500rpm. That was the only way I knew of to stop a camira blowing smoke. f.cking shitbox things that they were. Holden should have stuck with the old Gemini's. The other old trick I saw people do to help stop engine run-on with old V8s (but was never really sure if it worked) was to remove the vacuum advance hose from the distributer and dunk it in the windscreen washer with the engine at a fast idle. Apparently the water/steam running through the engine would help remove carbon buildup on the inside of the the head. Anyone know if there's any truth to that one? SignatureKwyj. >>This, I guess is the point in time where oil changes should >>be hourly timed, rather than distance related. [quoted text clipped - 13 lines] > My New Year's resolution is never to do either... idle an engine for > long periods, or resort to the "mandrake powder" trick. :) What?!?! you mean grinding paste down the bore doesnt work as a deglazer!!!??? > Spent today leaving the 'lux running at idle for most of > the day. I suspect puts the Hahahaha Honda 4 stroke petrol [quoted text clipped - 10 lines] > This, I guess is the point in time where oil changes should > be hourly timed, rather than distance related. Thats not really a wonderful idea and only something I would do in an emergency and even then I wouldn't let it "idle" below 1000rpm for an extended period. Much better to run the Honda or even better install a solar power system which you can get for almost nothing if you buy one for about the same amount as the max rebate which is AFAIK $8000. Daryl >> Spent today leaving the 'lux running at idle for most of >> the day. I suspect puts the Hahahaha Honda 4 stroke petrol [quoted text clipped - 17 lines] > which you can get for almost nothing if you buy one for about the same > amount as the max rebate which is AFAIK $8000. I have a hand throttle, so did wind that up to prolly close to 1000 rpm which increased the charging voltage. Interesting question, what about diesel generators? they seem to run at low RPM all their lives? >>> Spent today leaving the 'lux running at idle for most of >>> the day. I suspect puts the Hahahaha Honda 4 stroke petrol [quoted text clipped - 4 lines] >>> pool twice (it bleeds air at a rate a blaoon in the sun does), >>> using the 12V air compressor. >> Thats not really a wonderful idea and only something I would do >> in an emergency and even then I wouldn't let it "idle" below >> 1000rpm for an extended period. >I have a hand throttle, so did wind that up to prolly close to 1000 rpm >which increased the charging voltage. >Interesting question, what about diesel generators? they seem to >run at low RPM all their lives? Not when they're generating. The little ones are governed to run at 3000 rpm. Remember that they have to provide 50Hz AC, so the speed is determined by that and the number of "poles". Signature/"\ Bernd Felsche - Innovative Reckoning, Perth, Western Australia \ / ASCII ribbon campaign | Great minds discuss ideas; X against HTML mail | Average minds discuss events; / \ and postings | Small minds discuss people. -- Eleanor Roosevelt > >> Spent today leaving the 'lux running at idle for most of > >> the day. I suspect puts the Hahahaha Honda 4 stroke petrol [quoted text clipped - 23 lines] > Interesting question, what about diesel generators? they seem to > run at low RPM all their lives? They may, but the difference is the load on the engine. More load means geater gas-pressure pushing the rings against the bore. The 'Lux is only idling with next to no load. We had a new Honda 2.4KW at a solar satellite airground site, to run test equipment and an AC. It lasted about 3 years before it started to blow smoke and use oil. It probably averaged about 10 hrs/week on near full load. Jason > Interesting question, what about diesel generators? they seem to > run at low RPM all their lives? They do, but they're usually constantly under load and above 1000rpm. -- Regards, Noddy. >>> Spent today leaving the 'lux running at idle for most of >>> the day. I suspect puts the Hahahaha Honda 4 stroke petrol [quoted text clipped - 23 lines] > Interesting question, what about diesel generators? they seem to > run at low RPM all their lives? The lack of load on the engine is what can cause a problem, running an alternator puts next to no load on the Hilux engine but a diesel generator will be designed so it puts some sort of load on the engine. It will also be optimized to run at a set rpm/load unlike the Hilux engine. Daryl >>>> Spent today leaving the 'lux running at idle for most of >>>> the day. I suspect puts the Hahahaha Honda 4 stroke petrol [quoted text clipped - 28 lines] > generator will be designed so it puts some sort of load on the engine. > It will also be optimized to run at a set rpm/load unlike the Hilux engine. For the next few days I need power. The Honda one I used to use belonged to my friend and I, however his next door neighbour has it now. I never really liked it anyway. You had to be ultra paranoid that you started it with nothing connected as it would rev highly when first started then settle to running RPM. I destroyed (as in even physically melted) the casing of a surge protected power board above the surge protector, not to mention taking out a crap TV that was plugged into that along with a compact flouro. It was noisy, smelly, and chewed through petrol and hence got put in the back shed with a long extension cord. Even my dirt bike didn't use that much fuel. Fun going for the shoping trip: "The diesel?", "Yup, and that petrol pump, oh and that LPG pump too". LPG being for 'fridge, cooking, hot water. Another thing that comes to mind as load is the A/C. It will cycle in and out freqently from 750 to 1000 RPM. Kinda about as efficient as those building A/C systems that chilled water and a separate system involving a gas heater, then at each location the user could balance a not to hot and not to cold result. I always thought that kinda sucked and never seemed to work properly anyway. Although as the temp here is around 40C I can periodically go and sit in the 'lux with the laptop and post to aus.cars :-) What makes matters worse is I forgot to bring my solar panel I usually use to charge the water pump battery in the other shed. > For the next few days I need power. The Honda one I used to use > belonged to my friend and I, however his next door neighbour has it [quoted text clipped - 9 lines] > pump, oh and that LPG pump too". LPG being for 'fridge, cooking, hot > water. We bought a new *EG1500 in '74 and it was quiet, moderate to good fuel consumption, had a vibrating type of frequency meter. Used when we travelled about in a campervan for about 6 months, then sold it to a farmer who wanted it for his electric chainsaw... so we tested it cutting some wood and it handled that no problem. Sounds like the Honda powered one you had was rooted and had a problem with it's governor... most likely someone farkled about with it. *I think that was the model. I saw one very small Honda set recently that had what appeared to be a regular looking automotive alternator and an inverter. Didn't take too much notice though so I could be mistaken. No doubt some info on the web. Al SignatureI don't take sides. It's more fun to insult everyone. http://kwakakid.cjb.net/insult.html >Interesting question, what about diesel generators? they seem to >run at low RPM all their lives? So do trawlers and cray fishing boats live at virtually idle for 10 hour stretches at a time and glazed bores is a very common problem for their engines as well. That's why when they make their way to shore after a fishing trip, it's always done at full throttle (sea conditions allowing). 10 hours of idling followed by 20 minutes of full throttle/full load running at 32 knots is their normal operating conditions. |
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