General internal combustion engine questions.

learn more… | top users | synonyms

1
vote
0answers
6 views

Be van with problem at higher altitudes

2000 euro van engine shuts off when reaching altitude of 9000 feet in mountains. After standing for 20 minutes, it starts. This happened twice but ran well when not in the mountains. Similar to cars ...
2
votes
1answer
13 views

What is a stress riser?

What is a stress riser and why is it important to avoid them during engine construction or rebuild?
7
votes
3answers
419 views

What exactly is a “burnt valve” and what causes it?

I've come across this term a couple of times in the context of diagnosing engine-related issues, but don't know what it refers to. Here is an example from an automotive forum I frequent: I gotta ...
0
votes
0answers
11 views

Access to Piaggio MP3 engine

Some help needed here. I ride a Piaggio 250 mp3 scooter. After a few weeks of stalling at traffic lights, it finally refused to start engine at all. I've tried the garage but they didn't repair it ...
0
votes
1answer
11 views

Non-interference engine explanation animation/Videos?

Non-interference engine explanation animation/Videos ? I did ask my Toyota dealer about published material on 1999 Camry 2.2 non-interference engine that did not cause piston hitting valves/ valve ...
3
votes
0answers
10 views

Hyosung GT250R not starting, some repairs have been made

Hoping to find some good advice on fixing my (above mentioned) motorcycle. I'll try to keep it brief but with as much details as I can. I had an issue with the bike and it sucked up some varnish from ...
1
vote
0answers
20 views

Gas pedal suddenly not giving power to my car

I have a 2006 Mitsubishi Lancer.I was driving about 110 km/hr and then my car started to lose speed. I was pressing on the gas pedal but it was like it lost the ability to work. My battery light and a ...
15
votes
5answers
46k 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. ...
3
votes
1answer
222 views

Cadillac CTS 2007 3.6 oil consumption

3 months ago I bought Cadillac CTS 2007 3.6 with 31k miles, next day I went to local garage and changed the oil, filters, etc. I have driven 7k miles since and when driving last week car started ...
4
votes
3answers
313 views

Why do valve lifters get stuck? How come they unstick by themselves?

I've seen this happen on a couple of different engines so far (BMW S62, Mitsubishi 4G63) but am not sure about how commonplace it is. If an engine isn't used for an extended period of time, the ...
0
votes
2answers
52 views

2006 Infiniti G35 - Blown engine following Kwik Kar engine flush

(Apologies in advance for the lengthy post.) Background 2006 Infiniti G35 Coupe, 6-speed manual, 112K miles. I bought the car from a friend when it had about 50k miles. He had the car for the ...
0
votes
3answers
274 views

Derbi Senda 50cc won't run correctly?

I have a Derbi Senda SM 50 2005 plate. It has a good spark, however, it's not reading any compression. It's had a new top end and gaskets! What could be wrong? Sometimes it starts when you bump start ...
5
votes
1answer
25 views

Is cylinder leak down test needed if compression test results are fine?

If I compression test my engine and the results are fine, could there ever be any need to leak-down test it as well? IOW, can a leak down test ever fail if the compression test is fine. RELATED: ...
6
votes
1answer
302 views

Why does an engine's idle RPMs take time to settle from a cold start?

I've noticed my car's (healthy) engine will idle at a slightly higher RPM for a few moments after it's been started from cold/not run for a day. I also noticed that my (somewhat less healthy) other ...
1
vote
2answers
1k views

Peugeot 206 engine occasionally cutting out when idle

Sorry if this is vague, I don't know very much, but I'll do my best. I want to have as much information possible before taking it to a garage to do anything. I have a 2003 Peugeot 206 1.1l which has ...
1
vote
1answer
53 views

Are Boxer Engines Easy to Work On? [on hold]

How hard are boxer engines to work on and how common are they? Specifically, I'm looking at a Subaru Impreza with a 1.6L EJ16 boxer engine ( which seems to be in very good condition ) and am ...
2
votes
1answer
15 views

What causes too much fuel for my Briggs and Stratton engine?

I recently bought a generator that uses a Briggs and Stratton 17hp Vanguard engine. Before purchasing the generator, it had not ran in several years. The fuel was stale and the oil needed to be ...
1
vote
1answer
57 views

Turbo gain level

I have a question - do you have any idea about potential power level of 132 kW (180 HP), 700 Nm MAN truck (TGL) 4.5 litre engine with damaged (not working) turbo? Would it accelerate to 55 km/h with ...
4
votes
1answer
75 views

Replacing an engine in a Chevy pickup ('85 K10). Is 190hp enough?

My friend is looking to replace the engine in his older Chevy '85 K10 pickup and found this engine http://www.summitracing.com/parts/nal-10067353/overview/year/1985/make/chevrolet/model/k10. Is the ...
1
vote
1answer
54 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 ...
2
votes
1answer
194 views

Does using the entire rev range of a car damage it?

On my standard 2000 1.2 Opel Agila, I often have to get to about 5000RPM to join a fast road on a steep (1 in 10) hill, as it is gutless on hills. I have to do this almost every day, and I have ...
1
vote
0answers
18 views

Hard to start in the summer

Dodge Ram 2500 1st start of day, turns over and starts. After extended drive time it becomes harder to start and as day becomes warmer/hotter. Temps are hitting the 90's and 100+ Fahrenheit. Heat ...
1
vote
0answers
14 views

Engine Bogs Down after Cold Start

I drive a 2011 Ford Focus (Petrol, Manual). Lately, I've noticed that when I do a cold start, the engine tends to "bog down" at about 1.5k revs. If the car is moving at the time (i.e. I've already ...
3
votes
2answers
377 views

What to Look for When Buying a Rebuilt Engine

I'm looking at a 98 Mazda 323 1.8L with a rebuilt engine. Basically, a mechanic bought it cheap due to shot rings and rebuilt the engine to sell it at a profit. He said it's the fifth engine he's ...
0
votes
0answers
40 views

Why my bike shows petrol missing before 2000 RPM in all gears?

I am using Hero Karizma R (225cc, 5 gears). Recently I feel a missing in all gear befor 2000 RPM. Sometimes my bike turn off due to this missing. Usually it happens at 1st/2nd gears. After 2000 RPM ...
6
votes
8answers
7k views

What would cause motor mounts to go out on a factory engine?

I got my factory motor mounts replaced on my 2000 eclipse at 175k miles. I am now at 189k and the mounts blew again. I can hear the same rattling and squeaking. I had the spark plugs and valve cover ...
-3
votes
1answer
48 views

Engine sounds like it's in 4th gear while it's in 5th gear, the revs stays normal [closed]

Engine sounds like it's in 4th gear while it's in 5th gear, the revs stays normal, what could cause that?
4
votes
2answers
64 views

Can an old car engine be used outside of a car?

After selling my car for salvage recently I began to wonder if I could repurpose my next car's engine for anything. Can old car engines be made into generators or other useful machines?
1
vote
1answer
127 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 ...
2
votes
3answers
110 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?
4
votes
5answers
3k views

Why does a diesel sound like that?

My car is in the shop for a repair, and they gave me a loaner. It's a Chevy Cruze Diesel. Sitting on the driveway, my wife said, "It sounds like a truck". It does. So what exactly it is about ...
5
votes
2answers
303 views

Why does diesel engine have redline much lower than petrol engine redline?

why do diesel cars redline at around 4500 rpm whereas petrol ones around 6500 -8000 rpm? Does this have something to do with the compression ratio?
6
votes
4answers
2k views

What happens if unsuitable oil is used in a vehicle engine?

I recently heard an urban legend-like story about a guy in a developing country who decided engine oil was too expensive and so used some vegetable oil instead. The story says the car ran for some ...
2
votes
0answers
52 views

Engine on BMW G650GS 2011 does not start when it's hot

I have a rather strange problem with my BMW G650GS. In the morning, when the engine is cold, it starts fine with a single crank. There is no problem with riding, the engine works fine and never ...
6
votes
2answers
13k views

Engine Bogs down with A/C on highway

This started to happen relatively recent. It's 2003 Chevy Trailblazer. What is happening when the engine is idling and I turn the A/C on or the defroster (which also uses the A/C I believe), the ...
2
votes
1answer
31 views

Installing a Camry engine in a Highlander

Recently bough a Toyota Highlander v6 3.0 4wd, it has an engine knock. I was wondering if I could use a Toyota Camry's engine instead of buying a new one for the Highlander. If I do this, what will be ...
2
votes
2answers
30 views

ECU Diagnostic Port cut off and Check Engine Light disabled

I bought a used 92 Integra ZXi recently. I had starting issues so I took it to a mechanic. He found that the check engine light is disabled and diagnostic port from the ECU has been cut off. A very ...
1
vote
0answers
22 views

2 cycle engine has spark and new carb won't start

I have a 49cc 2cycle engine that I replaced the carb on. It has fresh gas and appears to have a spark. I can't get it to fire even if I put some starter fluid in the air intake. It seems to have ...
13
votes
8answers
17k 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 ...
2
votes
1answer
41 views

Consequences of leaking valve covers

I took my valve covers off on my 2007 Tacoma V6, while digging deeper to look into a possible head gasket issue, and noticed that one of them had a nut missing that went on an upright flange threaded ...
2
votes
1answer
345 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 ...
2
votes
1answer
31 views

Cylinder Leak-down vs Compression Test

I understand that both cylinder leak down and compression tests are used to test for cylinder head, cracks, warps, and gasket leaks. I understand the difference between how each works: compression ...
0
votes
1answer
36 views

Acceleration and engine issues

So I have a manual 02 Chevy Cavalier with 147000 miles 2.2L. I have been noticing that when I fully step on the gas I get zero acceleration. It gets even worse when I'm in either 4th or 5th gear after ...
0
votes
0answers
69 views

Where can i find my car's schema?(seat ibiza ST 1.6 TDI)

I have a seat ibiza ST 1.6 TDI. Where can i find a schema which shows me where is the general parts(break hydrolic container, ECU etc. )
3
votes
1answer
87 views

How much fuel does it take to start an engine?

I appreciate this is a question that can't be answered in facts and figures, so I'm after a general idea. I drive a 1986 Supra, which has a modest 2.8-litre engine. I often shut the engine off while ...
2
votes
1answer
46 views

Installing an RPM meter

I need to install one in my car, as it doesn't have one, what modifications do I have to do? Edit: My car is: Suzuki swift 1996 But I would like the answer to be generic, as to what to look for if ...
2
votes
1answer
2k 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
votes
1answer
489 views

Motorcycle heats up within minutes of driving in the traffic

Ice cold engine of my KTM Duke 200 heats up and shoots the highest temperature and the gauge reaches the extreme within like 15-30 minutes of driving it in traffic. And the engine stops and doesn't ...
2
votes
1answer
98 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 ...
1
vote
1answer
54 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 ...