General internal combustion engine questions.

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8 views

Can you help me identify this pipe connected to the engine?

I'm confused about the pipe highlighted in blue in the picture below, can you tell me what's its role ? is it used for air ? or to pass the fuel from the injector ? I may sound talking nonsense since ...
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1answer
8 views

Why are most engines made with even numbers of cylinders?

Why are most engines made with even numbers of cylinders? Are odd numbers of cylinders somehow less efficient than even ones?
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0answers
5 views

Why did V4 engines never take off?

I read that Ford Taunus (not to be confused with Taurus, it was a small model for German market) used to be made with a V4 engine but that's about it. How come V4 never became more used in modern ...
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3answers
34 views

Manual engine has no power in third fourth and fifth gear when driving up an incline.

When my engine is in neutral it reaches red line with no problem. It also has power in first and second gear. The problem happens when i am driving up a long incline, I will be in third or fourth ...
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2answers
240 views

What is the difference between an automatic and an AMT

I have seen many recent car launches in my home country which claim to have something called as an AMT or Automated Manual Transmission. I am curious to know how is this different from a traditional ...
4
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1answer
5k views

Which Reluctor Wheel on LS Engines?

Around 2005 or 2006, GM started using a 58-tooth reluctor wheel, where before they used a 24-tooth wheel in the LSx based engines (LS1, LS2, LS3, etc.). This wheel is used as a way for the computer to ...
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1answer
31 views

Last year my timing chain had broken

I have a 2003 Pontiac Sunfire A tooth broke on a sprocket and my timing chain broke. I was told I have a bent valve and would need a new cylinder head. It's has been sitting for exactly a year. ...
2
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2answers
4k views

Why bikes with gears are preferred when there is gearless(or automatic gear) technology?

I know that lower gears have higher acceleration & low top speeds and higher gears have low acceleration & higher top speeds. But I would like to know why this gear system was designed first ...
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2answers
33 views

replacing distributor— spline doesn't align

I'm working on my 63 impala (283 motor) and the previous owner had put a beat up Delco HEI distributor on the car, but it's so large that you can't really time it correctly-- the cap hits the firewall ...
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5answers
1k views

Remove rounded manifold bolt

I'm trying to take off the manifold bolts on an old Chevy 350 (the ones that connect the manifold to the header). I got 4 out of the 6 bolts out, but 2 are extremely struck and rounded due to all the ...
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1answer
111 views

Saab 93 Automatic died when waiting for traffic light and won't start again

I just bought a 2006 Saab 93 Aero 2.0T automatic in October, 72000 miles. Everything seems perfect. But 2 weeks ago, the engine died while I was waiting for red light in the town centre, I just braked ...
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5answers
5k views

What modifications need to be made to an engine to enable higher safe RPMs?

I first had this question while playing a racing game - it was a touring race with BMW 320i's, and I noticed that I could rev up to 8,500 RPM before shifting gears. Now my car (an older 320i), ...
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2answers
37 views

Loose wires in 1993 5.0 V8 F150 Engine

I have acquired this very used truck. It seemed to be able to run (albeit by burning transmission and coolant, but that's a different thread) but I wanted to ask if anyone could ID these wires? I ...
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1answer
23 views

Toyota Sienna shakes/rumbles at stops and red lights

2006, automatic Toyota Sienna shakes/ rumbles at stops, reds Rev meter vibrates Engine light is steady Recently got an oil change Same appointment, wrongly pumped diesel into car Replaced spark ...
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3answers
55 views

How do I reduce engine idling rpm without stalling it?

Considering idling losses are present in every engine, reducing the idling rpm might be providing significant savings. But, as I noticed on my bike, the chances of engine stalling increases with ...
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1answer
30 views

BMW e46 problems after Lysol in air intake

I was spraying Lysol into the cabin air intake (not the engine intake) right under windshield wipers while running the fans, and after doing this for several minutes (fans on the whole time, Lysol ...
2
votes
1answer
211 views

my car acts like its going to stall at a stop

my car drives fine but when i come to a stop light or any stop it acts like it will stall but never does. did some easy things like oil change. no check engine light is on but it seems to keep ...
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0answers
22 views

Suzuki Wagon R Solio - check engine light

I have my Suzuki 2002 Solio R Wagon I bought from Japan. Since I drive this car I didn't find any problem until day before yesterday. The check engine light flashing and the engine turned off! I went ...
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1answer
18 views

Duke 390 Tyre rotation problem

I have observed that my ktm duke 390's back wheel is difficult to rotate even while its in neutral. If i'm riding the bike, if i put it in neutral, the bike slows down pretty quick than it used to be. ...
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0answers
51 views

High Idle and Engine Noise in Chrysler 300c Hemi

I recently bought a 300, it had 170000 miles on it. When I test drove it nothing felt wrong what so ever. Week later it started turning off by itself in the middle of the freeway or alleys. Got it ...
2
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1answer
37 views

Will a 95 4AFE engine work on Euro 4 gasoline?

I am hearing news in our country that they might upgrade our fuel from EURO 2 gasoline to EURO 4. I am worried that it might damage the engine on my 95 corolla, which I still plan on keeping for at ...
2
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1answer
1k views

Car sputtering and stalling when idle and going into first gear

My 2005 Honda accord is starting to sputter and stall. It started all of a sudden one day and figured it might be my oil so I had it changed since it was time anyway. That seemed to work fine there ...
2
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1answer
83 views

Truck won't crank; no sound from starter relays

I have a 1997 Expedition, which badly needed a tune up: the motor was shaking. I changed the plugs, which stopped the shaking; two days later the truck won't start. The battery is hot and the lights ...
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1answer
39 views

2005 Honda Civic - Oveheating

So my car has been overheating for over 1 year. It overheated during summer or when I went 80mph only. I recently saved up enough money to get the car fixed. I brought it to my mechanic and informed ...
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2answers
25 views

Pontiac g6 runs lean; throwing codes

My 2006 g6 v6 3.5 is showing codes p0171, p0174, p0705 and u0073 171 and 174 show that the engine is running lean. Is this a serious issue? 0705 shows the trans range sensor a circuit 0073 says the ...
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0answers
33 views

Honda XR650l first ride after winterization

Before winter I had the oil changed, filled the gas tank and added the recommended amount of Sta-bil fuel stabilizer. Then rode around for about ten minutes then switched the petcock to off and ran ...
5
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2answers
262 views

Ditch water in radiator

I lost a coolant hose going down the road and all my antifreeze was gone. I found a puddle along the road and filled my radiator back up after I fixed the hose. Will this cause electrolysis in my ...
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1answer
17 views

No power situation - 1990 Mercury Couger

The engine won't turn over and there is no radio or power windows. What is the connection with these three things all at once? I replaced the coil and starter. Checked fuses, relays, etc. It ...
2
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1answer
75 views

Should we wait a few seconds before starting the engine?

My OCDed cousin's told me when he enter his car, he put the key to ignition then count to 3 and start the engine. The main raison of him doing that is to give enought time to fluids (I'm not sure ...
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1answer
36 views

Heavy Towing 2007 Chevy Avalanche 5.3L [closed]

I'm going to be doing a bit of heavy towing with my truck. Up to and sometimes over its rated weights (approx 7000lbs). What can I do to add the necessary power and transmission performance that I'm ...
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1answer
125 views

Diagnose lag in acceleration

Honda Accord 2003 V6 - I've recently noticed that there's a slight lag from when I depress the gas pedal to feeling the car accelerate. What could be the cause? I the mornings when I start the car I ...
3
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0answers
129 views

2003 Suzuki Katana 600 shuts off after running for 10–20 seconds

My 2003 Suzuki Katana GSX600F shuts off after ten to twenty seconds after start. It doesn't spit and sputter, it just shuts down. I have loosened the bowl screws while it's running and confirmed that ...
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1answer
136 views

96 Toyota Camry won't stay started

My 96 Camry starts first time every time then stalls after 10-20 seconds? Last year it ran fine but rarely would stall @ running speed. I had to set for 2-3min before it would start then it ran ...
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2answers
22 views

New breaker points not working

I'm trying to replace the breaker point on my 1980 Oldsmobile, trying to fix some spurious misfires and engine stalls. The car was converted to gasoline in the early nineties or late eighties, engine ...
3
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2answers
57 views

What happens to a car engine when giving max throttle while not in gear

I was driving (well standing still actually) during rush hour, and I was suddenly wondering what would happen to a car engine when I would push the accelerator pedal all the way down while the engine ...
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0answers
18 views

ISUZU CUBIC mixing oil in coolant

ISUZU CUBIC - CITIBUS ENGINE - 6hh1, 8300cc, 6 Cylinder, No Turbo I have this Isuzu with the above description. It is mixing oil and water coolant. I did not find water in the crankcase but found oil ...
3
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1answer
48 views

Old Air Compressor Rebuild (and general piston engines) - Oil On Cylinder Walls?

So I have recently acquired (for free) a circa 1973 Speedaire 20 gallon compressor with no history. After a short while of use the check valve failed and when I removed it I noticed it and the air ...
2
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1answer
13 views

Dodge Caravan 2000 sudden rev

My Dodge Caravan 2000 suddenly revs at high speeds. When travelling at 70km/h, the rpm would suddenly go from 1.5k to 2-2.5k instantly and jerks afterward. I'm not really a car guy so if you guys ...
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0answers
12 views

2007 Suzuki Forenza motor

I took my 2007 Suzuki Forenza in for regular maintenance to replace timing belt, nothing was wrong with it. I was just following suggested time to change. They changed it and the water pump, but put ...
2
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3answers
620 views

Problems in building higher displacement 2 stroke engines

I understand(from preliminary research) that when engine gets bigger(higher displacement) it is practically not possible to have a two stroke engine. What are the implications in building a higher cc ...
2
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1answer
27 views

Carburettor jetting on installation of aftermarket air filter

I have a 150cc motorcycle and am planning to install an after market air filter(K&N) since the stock one was favoring fuel efficiency and not performance. The bike has a carburetor (Mikuni) not ...
3
votes
1answer
68 views

What are reasons my engine would sputter when turning off?

I have Subaru Impreza 2.5i (2.5 NA). My car's engine sputters a bit when turning it off. Specifically it seems like the cars engine keeps turning for a little longer right after I remove the keys. ...
2
votes
2answers
72 views

“tick-tick” sound in Enfield Clasic Motorcycle

BIKE ENFIELD CLASSIC 350 2013 Model ODOMETER: 14000 One and half year old Oil changed one and half month before general servicing. There is a particular sound from the engine while riding ...
13
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7answers
15k views

My car's coolant temperature reaches almost 100 C / 212 F in a fast pace

Today, after a very hot day, I saw that my coolant was almost reaching 100C/212, I pulled over, stopped and took a look over the hood. The very little water that remained in the coolant tank was all ...
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0answers
14 views

Fuel Efficiency vs Engine capacity [duplicate]

How come there are cars with 1500cc engine producing with better fuel efficiency than a 800cc motorcycle with roughly the same amount of bhp? For example a Suzuki Splash with 1200cc and 87bhp returns ...
5
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1answer
61 views

Leftover parts after head gasket change; are they engine mounts or braces?

About a year ago, I replaced a head gasket on a 1994 Chevy Cavalier 2.2L. After I put everything back together there were two parts left over. The car runs good considering it's 20 years old, however ...
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2answers
82 views

Ford Figo doesn't start after recharging the battery

I have a Ford Figo. I had the battery recharged and got it fixed. Now the car won't start. There is a symbol which has pic of a car and a lock on it and that keeps blinking whenever I try to start and ...
0
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1answer
54 views

Turbo Charging Suzuki Splash/Ritz

Can I turbo charge my Suzuki Splash/Ritz? Its a 1.2 liter petrol engine with 85HP. What types of engines can be turbo-charged. If it's possible, how would I do it?
13
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4answers
40k views

What are the risks of overfilling a small engine with oil?

I recently overfilled a 4 stroke lawnmower engine with oil. It has been run for about 1.5 hours while overfilled. It smokes a lot right after being started but after 30 seconds or so the smoke clears. ...
2
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2answers
8k views

Burning Smell and Faint White Smoke

I have a 1999 Audi A4. Recently there is a burning smell when driving that is noticeable when stopped after driving. At night I noticed a faint white smoke blowing out of the front in the headlights. ...