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Nairaland Forum / Nairaland / General / Car Talk / Engine Conversion (9239 Views)
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Engine Conversion by sonibota: 4:11pm On Aug 16, 2010 |
I have been a fan of Nairaland for quite some time now. Off all the threads I happen to have latched on to, I have not seen any discussion on the conversion of car engines. Can Nairalanders kindly educate some of us of the possibility of converting a V6 engine to a 4 cylinder engine. If conversion is possible, what are the likely problems one would experience in due course? |
Re: Engine Conversion by KunleA2(m): 4:15pm On Aug 16, 2010 |
You are too vague. What car? What model? Why are you converting? Are people lying to you as others that 4 cylinder is better than V6? You need to be more clear until answers can be given. Good luck. 1 Like 1 Share |
Re: Engine Conversion by sonibota: 4:32pm On Aug 16, 2010 |
Oga Kunle, small small. How else can you know am a neophyte in this area. The vehicle I actually have in mind is a Toyota Camry models 1966-2001. Reason for conversion could be that you end up with a knocked V6 engine and prefer to go for four cylinder. Thanx |
Re: Engine Conversion by bigfather(m): 4:52pm On Aug 16, 2010 |
sonibota: 1966 ![]() ![]() |
Re: Engine Conversion by sonibota: 4:55pm On Aug 16, 2010 |
Pleasae pardon my typos. I meant Camry 1996-2001. |
Re: Engine Conversion by KunleA2(m): 5:36pm On Aug 16, 2010 |
sonibota: If that's the case, i think you are better off getting another V6 engine. For newer cars its not that easy just swapping the engines. You have to worry about the engine mounts, other components like A/C, the brainbox will MOST likely need to be changed (cos they control different things), wiring harness etc. The V6 engine in the Camry is actually same in Lexus RX300, Avalon, Sienna etc. Nigerians will gladly buy the Sienna, Avalon, RX300 without hesitation. In fact some people will gladly dash you their wife/daughter for a clean Avalon/Sienna without blinking ![]() ![]() People have been POISONED to believe that somehow this same engine is not good when in a Camry. That is why YOU were thinking of changing it. Well its possible but you need a bigger pocket. I seriously doubt if you wanna go that route. Drive and enjoy the car with a V6. Happy motoring. 2 Likes |
Re: Engine Conversion by jdiadem: 4:25pm On Aug 17, 2010 |
@ Kunle, i need your advice on my honda 96 odyssey. it makes some noise when driven especially as you go on higher speed. my mechanic later discovered the transmission oil is all leaked off. we immediately re-filled the oil, but after then the car won't go in the reverse even when the gear is locked in the reverse with the reverse light on. i'm afraid of our mechanics messingg it up. please advice |
Re: Engine Conversion by chelseabmw(m): 8:06pm On Aug 17, 2010 |
when i hear the sound of an avalon i feel like wow ![]() |
Re: Engine Conversion by KunleA2(m): 2:09am On Aug 18, 2010 |
j diadem: Without seeing the car physically, its hard to say. But with your description, i am afraid something terrible might have gone wrong. Transmissions are not designed to run with low or no fluid. And it matters how far you drove it after the incident, that might make the whole world of difference. My suggestion is that you find a VERY COMPETENT mechanic that can fix the problem. Proper diagnostic is the key here. You might have to scan the car to be very sure that you focus on the problem. Good luck out there. Happy Motoring. |
Re: Engine Conversion by larryshow4(m): 6:39am On Aug 19, 2010 |
@j diadem, Oga, scan your car. Am telling you from experience. I drove an oddysea. The 2002model. I experienced the same tramission problem and concluded on the gear. I lost 150k on replacing cause the other I got still gave the same problem. Can you imagine I didn't spend up to 20k to get it scanned and all error fixed. Am not asking you not to get a good mechanic, but firstly know what actually is wrong and stop doing trials. Get it scanned and you off it. That's the first thing that should be done. A word is enough for the wise. 1 Like |
Re: Engine Conversion by jdiadem: 7:27am On Aug 19, 2010 |
@ Larryshow4 thanks for the advice, but where did you do your own scan and got the prob fixed. thanks |
Re: Engine Conversion by Harus(m): 10:02pm On Jan 01, 2011 |
I have a TOYOTA camry. The engine is weak and I was adviced to change the engine. Pls I need ur advice. Should I change the whole engine or only the Block. Which is better? Thanks. |
Re: Engine Conversion by KunleA2(m): 10:14pm On Jan 01, 2011 |
probably be better and easier to change the whole thing. just in case they didnt do it right. dont risk it. |
Re: Engine Conversion by Ikenna351(m): 9:09pm On Jan 02, 2011 |
sonibota: Why on Earth would you leave V6 for I4? I always wonder why some people woundnt want something good, durable, powerful and relaible in their life. Anyway, its your call. Ikenna. 1 Like |
Re: Engine Conversion by Nobody: 11:07am On Mar 11, 2011 |
People upgrade their engines / cars, not downgrade them. I think Nigerians in general need to do a bit of research on certain things. The average Nigerian mechanics are lazy and incompetent, so try to cover their short comings by saying V6/V8 engines are not as good as I4's. And scarily, a lot of owners running cars with V6/V8 engines easily fall for this garbage. Would you drive a Volkswagen Touareg with a 4 cylinder engine? Or pay attention to your mechanic, when he tells you it would be best if you allowed him tear out your Audi Q7's smooth V8, to replace it with a 4 cylinder motor from a 1996 Audi 80 with a carburettor? Think, guys, think! |
Re: Engine Conversion by dradoyi(m): 12:17am On Mar 12, 2011 |
Kunle and siena, just read your post. you guys are obviously not based in Nigeria. I must tell u its not wise driving a V6 here. Cost of maintainance, availability of mechs, are all major issues here. Though V6 are sweeet to drive. NLanders please i will appreciate more inputs about which is better for us here in Niaja, A V6 or the regular 4 cylinders. thanks |
Re: Engine Conversion by Nobody: 1:31pm On Mar 12, 2011 |
Dradoyi, I see where you're coming from. But I don't entirely agree. But what of owners of high-end SUV's? I presume the V6/V8 engines in these get serviced / maintained by humans? The fact is, there are proper specialists in Nigeria, just that the average Nigerian wants a good service, yet isn't willing to pay for it. They'd rather cut corners, and use roadside mechanics, who don't know one end of a spanner from the other. If they can't fix your car with a hammer, then they'd tell you your expensive SUV needs an ECU. |
Re: Engine Conversion by donfidel(m): 2:25pm On Mar 12, 2011 |
Hello Siena, Pls i need ur urgent advise. Lastnight, i had a cause to lend the battery of my '03 Camry to a neighbour whose own ran down (because she unknowingly left her headlights on overnight) so that she could start the car. I just noticed this morning that if i now start my car, it will start quite alright but then go off almost immediately except i quickly step on the accelerator. Pls, what do you think could be the problem? What should i do about it because my mechanic seems to be at a loss as regards the cause of the problem. I really need ur urgent advise. Thanks. |
Re: Engine Conversion by Nobody: 2:49pm On Mar 12, 2011 |
donfidel: Most modern cars have ECU's, that rely on constant battery voltage to retain their memory. I would say your engine management needs a re-set via the OBD port. The component that needs to be re-set is generally the throttle body. Basically, the ECU doesn't know the throttle plate angle, hence it won't idle. If you don't have access to an OBD-II scanner, you can do a manual re-set, by driving the car at least 8 miles. If it's an automatic, select 'L', and try keeping to a constant speed. The ECU should then 're-learn' the throttle valve angle, and re-caliberate itself accordingly. Let's know how you get on, and best of luck. |
Re: Engine Conversion by donfidel(m): 2:55pm On Mar 12, 2011 |
Thanks, Siena for your prompt response. I'll do that and get back to you. |
Re: Engine Conversion by Nobody: 2:56pm On Mar 12, 2011 |
^^^ No worries. |
Re: Engine Conversion by kingz3330: 6:17pm On Mar 12, 2011 |
I just acquired a 1996 Toyota Camry 16 valve engine, it makes a knocking sound when the engine is revved up. Though it moves fine. I have seen 2 mechanics now ,one suggest i buy half lower part of engine and the other advice that i change the metal, Whats your candid advice as the engine does not smoke or malfunction in any other way except this noise .HELP! |
Re: Engine Conversion by MrKelly: 7:37pm On Mar 12, 2011 |
I bought a Kia Optima recently. The owner probably sold is out due to high cost of mentaining the engine which has now gone terribly bad. Kia engine is so expensive here so my mechanic suggested we adapt an engine from another brand. He said the engine mount can be constructed to fit the new one while a new brain box will also be required for the new engine. Pleas I need your advice on this. Is it possible to adapt an engine from another brand of car? If yes, what other brand of car engine apart from Korean engine will you suggest. |
Re: Engine Conversion by Nobody: 11:25pm On Mar 12, 2011 |
kingz3330: Sounds like your connecting rods / crankshaft main bearings are shot. It won't cause the engine to smoke, but will certainly cause a racket at high RPM. It would probably work out cheaper to ourchase a 'short engine' (engine cylinder block without cylinder head). Replacing the main and big-end bearings is fine in theory, but will depend upon the state of the crankshaft journals. If they're worn (depending on how long it's been knocking) they'll need a re-grind, and correspondingly under size bearing shells fitted. Obviously, if they've been ground previously at least twice, then that's the end. A good mechanic will also determine what caused bearing failure in the first place, no point just throwing in a set of shells without checking, otherwise the new shells won't last long before they wear out. Most common causes are dirty oil, (too long intervals between changes) a lazy oil pump, or simply driving style. An engine shouldn't be run at high RPM when cold, especially under load. Good luck. |
Re: Engine Conversion by Nobody: 11:33pm On Mar 12, 2011 |
Mr Kelly: I can only advice you on an engine conversion, if I know a few details. I don't like having to make wild guesses, shooting in the dark. 1) Model year. 2) Engine capacity. 3) Engine configuration (I4 or V6). 4) Transmission type (auto or manual). Bear in mind, the first generation of Kia Optima was a re-badged Hyundai Sonata, sharing it's engine, suspension, transmission, with just a few external body panels differing. It used the same body shell too. |
Re: Engine Conversion by MrKelly: 1:03pm On Mar 13, 2011 |
Siena: 1) Model year. = (2007) 2) Engine capacity. = (2.4 ltr) 3) Engine configuration = (L4) 4) Transmission type = (Manual transmission) Thanks in anticipation. |
Re: Engine Conversion by Nobody: 5:07pm On Mar 13, 2011 |
Mr Kelly: Given the age of your car, relatively new, I would advice against an engine conversion. A conversion will require: 1) Engine mount fabrication. 2) An adapter plate to allow a different engine to bolt up to your Kia transmission. 3) A different engine wiring harness, which will require adapting to the Kia's Central Electronics. 4) A different ECU matched to the alien engine (will also have to be adapted to control the Kia's auto transmission TCU). 5) A matching transpondered key to match the new ECU. 6) New fuel lines, and depending on the new engine's operating pressure, a new fuel pump. 7) Adapted coolant pipes / hoses. Unless you want your mechanic to wreck your new car, by converting it to a very old engine with a carburettor, I would source the correct engine. The 2,4L I4 engine in your 2007 Kia, is shared with the Hyundai Sonata 2,4L. You should be able to buy good used engines in Nigeria. There are certainly a lot here, with complete running cars going for between £700 - £950. Best of luck. |
Re: Engine Conversion by pannyman(m): 6:08pm On Mar 13, 2011 |
@ Siena, I experience the same problem as donfidel with my V6 '99 Camry. The problem went away for a while after I replaced the spark plugs and resurfaced recently. It causes a low vibration when the car is idling in traffic. I thought it might be the fuel filter and replaced but the problem still persists. Your thoughts please. thanks. |
Re: Engine Conversion by MrKelly: 9:20pm On Mar 13, 2011 |
Siena: Thanks Siena for your timely advice. You have saved me from making a costly mistake. Though I don’t know how much it could cost to ship and clear, it makes a lot of economical sense buying a complete car at that price. However, someone informed me there’s a place around Ikeja where they sell accidental cars. Will try my luck there and get back to you if it doesn’t work out. Thanks once again. |
Re: Engine Conversion by MrKelly: 9:26pm On Mar 13, 2011 |
@ Siena, Pls how much will it cost me to ship the car from UK? Also advice if there are other additional charges to enable me make an informed decision. Thanks. |
Re: Engine Conversion by Nobody: 9:45pm On Mar 13, 2011 |
Mr Kelly: Shipping a complete Hyundai Sonata 2,4L automatic will cost £695. Based on 1 x Hyundai Sonata VIA: RO/RO From: Tilbury To: Lagos This rate includes: * Origin Handling * Loading and securing * Export Clearance * Shipping Docs * Bills of Lading * Freight Charges I'd say it's a better option, than buying and engine from the UK, and shipping it to Nigeria. Shipping a crated engine costs more than shipping a car. Apart from the obvious advantage of having a complete car that drives, meaning the condition of the engine can be proven, it'll also provide a spare transmission, and other compatible parts. The transmission in your 2007 Kia Optima is also shared with the Hyundai Sonata. |
Re: Engine Conversion by donfidel(m): 10:31pm On Mar 13, 2011 |
Thanks, Siena, for your timely advice yesterday. The car is ok now. I'm deeply grateful. |
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