Internal Combustion Engine. Most engines in road going vehicles are 4-cycle internal combustion gasoline engines.

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Accidentally poured gas into antifreeze in tractor

I was gonna fill our tractor with gas and there were to caps, a metal one a d a filter looking one, neither was labeled so I figured the metal cap was the gas cap, I put gas in it for just a few ...
3
votes
2answers
22 views

Grind/Crunch Sound Near Alternator (video)

1983 Chevy 305 small block. Hearing a grinding sound near the alternator. Is this a bearing or something grinding near the belt ? Not exactly sure how to diagnose. Video: https://www.youtube.com/...
4
votes
3answers
20 views

Engine Braking Force

I've got a few questions regarding the force of a typical engine brake: 1.Which parts of my car influence its numerical value? 2.Is there a formula, which enables me to predict the numerical value, ...
2
votes
1answer
14 views

activa engine noise after start

myself anf my neighbour purchased activa 3g same time. while my bike is in idle (just after immediate start) as well in running condition, it sounds little bigger/ rough noisy like dub dub..... Even ...
5
votes
2answers
33 views

Ignition timing of 4 stroke two wheeler

Gentlemen, So I work in this lab with a small dyno for a two wheeler engine hooked onto it. The engine hasn't been used for years and I had to correct few things in the wiring. I had to remove the ...
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1answer
27 views

Car running rough and blowing water back through overflow when driving [on hold]

1997 Holden jackaroo 3.2l petrol wagon
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votes
10answers
7k views

Spark plug broke off in engine - can I drive the car?

I own a 2004 Volvo XC90 T6 2.9L AWD with 6 cyl. (Twin turbo, with catalytic converter.) While changing the spark plugs, one broke-off (all the ceramic below the threads and possibly the metal finger ...
5
votes
2answers
36 views

Starter Motor Intermittently will not engage

2003 Kia Pregio Diesel Van just purchased 1 week ago. Owner claimed no problems. Just did an oil change. Yesterday when I turned the key to start, the starter motor did not engage. No sound, I just ...
4
votes
2answers
66 views

Safely washing engine bay of Ford Focus

I am trying to clean the engine bay of my 2002 Ford Focus SE, which is really grimy thanks to years of neglect, and a valve cover gasket leak that I recently fixed. I have been reading about how to ...
3
votes
1answer
43 views

Nissan Altima catalytic converter ruined twice in one month

My 2005 4-cylinder 2.5s Nissan Altima has been having major issues for the past several months. My mechanic replaced the catalytic converter and a month later another mechanic said that the catalytic ...
7
votes
5answers
356 views

What can cause a gasoline engine to suddenly & mysteriously stop (non-catastrophically)

I was thinking about this question and found myself wondering what could cause a gasoline engine to suddenly stop, and then be restartable? So not things like running out of fuel, or suffering a ...
5
votes
2answers
38 views

04 Mercury Montery stalling while driving

While driving on the highway my van stalled. Once on the side of the road, I tried to restart and no joy. All indicators and lights came on but when I turned the key nothing happened. I jiggled he ...
3
votes
3answers
26 views

Ticking noise on acceleration & idle?

I have an '86 jeep comanche with over 380000 mls that has started to tick on acceleration and through gears. Also at idle. Have changed motor mounts, transmission mounts, track bar, rear differential ...
0
votes
1answer
26 views

Where do you go to find illustrations of car parts?

I am trying to learn more about car engines but for the life if me can't find good illustrations of how some of them look (specifically a 2013 Nissan Juke) where do you go to get information and ...
3
votes
0answers
14 views

Yamaha F40F outboard boat engine continuous alarm when starting

I'm trying to start a very new 2014 Yamaha F40F engine on my dad's boat. The engine was used yesterday by my brother without issues but today it won't start at all, and I get a continuous alarm sound ...
3
votes
0answers
13 views

Royal enfiled classic 350 sounds like tak-tak while riding?

I bought classic 350 about 8 months ago but since after only first 15 days of riding i started noticing tak-tak like noise from nearby engine. Noise can only be heard while riding on low rpm when i ...
8
votes
3answers
1k views

Is it right to say that VTEC is solely by Honda?

I have an i-VTEC engine, which Honda claims to be a better and computerized version of their famous VTEC Engine. Now I am wondering: Is it right to tell people that only HONDA has VTEC? or is this ...
1
vote
2answers
31 views

Fiat uno mia 1.1

I am trying to set the distributor on my uno , the mark i made prior to removing it does not line up anymore and I am not able to turn the camshaft for some reason, I tried turning the motor by hand ...
8
votes
3answers
52 views

Preventing debris from falling in engine while changing valve cover gasket

I am about to change the valve cover gasket on a 2002 Ford Focus SE Wagon with the DOHC Zetec engine. I have never done this kind of thing before, and although it seems simple, I am concerned after ...
7
votes
1answer
48 views

Longer crank time

Today I noticed something strange with my car. I was at a gym studio when I turned the key and I noticed it took a few "er er"'s longer before it started. As anxious I am about my expensive toys, I ...
6
votes
1answer
44 views

How to leak down test a cold engine?

I'm thinking of doing a leakdown test on an engine before I install it in my car. Of course the problem is that the engine will be cold and things won't seal the way they do when they are hot. So how ...
4
votes
2answers
69 views

Engine tap/knock/noise after a few seconds of starting

1998 I6 - 4.0L All stock ~175,300 mi 13.8 mpg - mostly city A few months ago, I began to hear a noise that sounds similar to a diesel engine, which begins a few seconds after starting the cold ...
4
votes
1answer
44 views

What are all the holes on an engine block deck surface?

I want to know what are all the holes for on a engine block deck surface? I Know some are to help with putting the cylinder head on and others are to bolt the head down. But what are the rest?
17
votes
5answers
2k views

What happens if I change the oil when the engine is cold?

I have always changed the oil in my vehicles with the engine hot, because the manuals always say to let the engine reach normal operating temperature first. Oil change instructions all over the ...
7
votes
1answer
89 views

What is the cause of this strange engine noise and white smoke from the engine?

My car has a problem the engine whistles (Hard to better describe it) white smoke comes out of the engine beneath the fuel filter Two different mechanics could not understand what's happening I ...
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vote
0answers
22 views

Jeep Wrangler Sahara (86,600kms mileage)-Oil change

Is it okay to mix Mopar 5W-20 with 1.5 liter of Total Quartz 5W-40? Driving in the middleast
4
votes
1answer
648 views

Meaning of dashboard “Check Engine Light” on motorbike

Please help me understand the meaning of this dashboard light shown in the picture. ABOUT BIKE SPECIFICATION What happen if it blinks RED ?
3
votes
1answer
20 views

2005 Chevy Avalanche

I have a 2005 Chevy Avalanche 1500 with 4x4. My transmission is shot and needs to be replaced. I currently have 146,458 miles on the engine, and figured I would replace the engine and transmission. I ...
8
votes
2answers
443 views

What's gonna happen if I disconnect 'single piston'

I saw similar topics but that did not explain my things... As we can see 4 stroke engine with 4 pistons Is there any chance (only for test) to 'switch-off' two pistons? For this example I'm talking ...
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vote
1answer
17 views

repair air intake and exhaust and gas lines on a 2013 china yy50cc qt-6 scooter

I am having difficulty identifying where my vacuum and fuel lines terminate on the carburetor and various other components of this vehicle after disassembly. Can someone assist me with a visual aid ...
4
votes
2answers
72 views

What material are combustion chambers made out of?

What is the standard material a combustion chamber is made out of on a standard L4 engine today? I want to build a new engine from scratch to test both my engineering and mechanical skills but ...
3
votes
2answers
34 views

Idling problems on 2004 Ford Mustang 4.6L V8

Need some help. I recently bought an '04 Mustang but am having idling problems. I've looked up some things on the Web but they didn't do anything for me. I've clean the IAC and it helped some but not ...
1
vote
1answer
50 views

Vehicle cuts off while driving

What causes a car to shut off while driving? About 10-15 later it will start back up; however the check engine light comes on. If you try to start it before 10-15 min it turns but wont catch. It was ...
14
votes
3answers
2k views

Why do Internal Combustion Engines have specific “Firing Orders”?

What's the point of having a firing order? I read that it helps balance out the power so as not to be too much on one side if the crankshaft, but why do we have such a specific order? If that was the ...
7
votes
1answer
40 views

What are primary & secondary engine balance?

I am kind of confused when it comes to this topic. I think I kind of understand primary balance. Which is the back and forth rotation of the pistons. But I don't fully understand it or even get ...
5
votes
3answers
509 views

Do Most Common Engines Have A Cylinder Head?

I know there are different types if engines. All with different set-ups and designs. But do most engines have a cylinder head? And how many? I know inline engines have one, V-lines have two and radial ...
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vote
0answers
16 views

Renault kagoo 1.5dci smoke

I just changed the rings and valve seals on my Renault Kagoo 1.5dci, but the engine is still smoking. In addition, the car doesn't start with the key - you have to add quick start in the air intake or ...
5
votes
1answer
23 views

1995 4.3 Vortec w/balance shaft timing chain

I replaced the timing chain because of what I thought was excessive play. The new aftermarket one seems to have as much play in it as the other one. Is this the correct chain? Or is this a normal deal?...
10
votes
2answers
76 views

Coolant Flange - What is it really called?

My antifeeeze keeps leaking out and I was told that I had a hole in my coolant flange, so when I was calling to see how much it would be to get fixed no one knew what I was talking about. I am a woman ...
5
votes
3answers
76 views

Is it possible to detect defect of vehicle's engine by examining sound it makes

The idea is: every once in a while I use some imaginary smartphone app and record vehicle's engine sound. Then the app should interpret that sound and say OK/NOK. If NOK I drive to be further examined ...
0
votes
1answer
30 views

Where do you install cylinder heads, camshafts and valves in different engine types?

I am trying to learn about engines, so my question is where do valves, camshaft etc go inside different engines? I see different engine have them in different places, base on if the engine is a inline,...
7
votes
1answer
146 views

Overheat, coolant loss, P0170/P0117, hard start, smoke, delayed throttle, no vtec

So I'm on the road right now (or was, when I wrote this) having an issue that started a few days ago and I'm trying to diagnose it. I am not sure what info is relevant, it does feel like more than one ...
2
votes
1answer
28 views

White smoke from Passat

My 2000 VW Passat has no power and faint white smoke. Once I turn off the vehicle, the smoke becomes greater for a minute or two.
5
votes
0answers
35 views

2006 Honda CRV with engine sludge issue

The check engine light came on. Scoped it and the engine code P2647 came up. Changed the oil pressure switch and cleaned the screen. Check engine light came on again. Scoped it again and engine code ...
10
votes
3answers
144 views

350z cranks won't start

2003 350z cranks but won't start VQ35DE Here is my short history: Flywheel and clutch installed 1 month ago =Car worked fine +Cranksensor was added =Car worked fine -Car started to shut off while ...
0
votes
1answer
79 views

Engine specifications for 10.2 liter Chevrolet V8 [closed]

In an effort to design a theoretical engine capable of outputting 3000 horsepower, I was hoping to emulate the 10.2 liter Chevrolet V8. What are the specifications for this engine? I was hoping for ...
3
votes
1answer
46 views

Skoda rapid 1.6 diesel, 2013.. engine oil burning

My vehicle just has first service two months back. And then engine was burning the oil. I didn't see any smoke coming backside of my vehicle. There is no mileage problem or pickup or power problems. ...
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vote
1answer
59 views

Designing IC engine [closed]

I am trying to design a theoretical internal combustion (IC) engine. The ultimate goal is to achieve 3000 hp with this engine, for which I know I will need low bore x stroke ratio, high compression, ...
7
votes
1answer
62 views

2015 Honda Mobilio - Car shakes when started

I have a 2015 Honda Mobilio with a manual transmission. I have had this car for 6 months and have not experienced any problems until yesterday morning. When I start my car, the engine shakes badly. ...
2
votes
1answer
49 views

What sort of temperatures do exhaust manifolds on large engines reach after normal operation?

The main car that I was wondering for was a Nissan Altima 2.5l 4dr. 2007 with 138,000 Miles