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

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3
votes
1answer
15 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. ...
0
votes
1answer
21 views
5
votes
2answers
90 views

Shouldn't a loss of compression equal a loss of power?

I recently did a compression test on a Nissan B13 GA16DE and got 125, 127, 122 and 140 psi (cold). A few years ago, all 4 cylinders got 135-140 psi, cold. Shouldn't this loss of compression have led ...
5
votes
2answers
78 views

Where does the piston stop after the ignition is turned off?

Compression stroke at TDC or Exhaust at TDC or somewhere else? Is this position fixed or does it depend on other conditions?
2
votes
1answer
24 views

2002 Chevy Blazer - Oil in coolant

I have a 2002 Chevy Blazer with 237755 miles. I was just informed that I have a blown head gasket and oil is leaking into my coolant. On my way into work this morning my check engine light was ...
9
votes
5answers
3k views

What are the problems in building 2 stroke engines with a large displacement?

I understand (from preliminary research) that when engine gets bigger, with a higher displacement that it is practically not possible to have a two stroke engine. What are the implications in ...
3
votes
1answer
37 views

Can I use hard tools to remove hardened carbon buildup on valves?

I used a brass brush by hand to clean the carbon off the aluminium head of my BMW R80GS 1991. The valves however are very stubborn, a brass dremel head won't do it either. I started using a soft steel ...
2
votes
2answers
80 views

Engine died after driving fast on highway

I drove my 2004 Ford Ranger 3.0L V6 on the highway at 120 kph (65 mph) in second gear, and the engine died. Is it seized or can I repair it? The transmission fluid is still the proper color and doesn'...
1
vote
0answers
28 views

Hot cranking problem on 6.6 duramax

6.6 duramax diesel engine cranks good cold but periodically won't crank hot unless I use starting fluid. This usually happens after engine has been turned off about 30 minutes. Also if idles for ...
8
votes
1answer
152 views

R32 Skyline GT-R low power

EDIT: Added info from comments to bottom of question. My friend recently imported a right-hand drive 1990 Nissan Skyline GT-R (R32) with the RB26TT motor into the states. It's beautiful, and I'm ...
5
votes
1answer
194 views

Are there any modern diesel engines that require electricity to continue running?

I was reading this question about an owner checking the alternator by disconnecting the battery, which is an easy way to validate on a gasoline engine. The single answer assumes that the OP is ...
-1
votes
0answers
29 views

Engine is over heating [on hold]

Good Morning Friends,,, 'I have vehicle of Mahindra Scorpio and i met with accident were as hood(Bonnet) & Radiator got damage and we have not seen the coolant and we have driven up to 30 km..For ...
15
votes
6answers
6k views

2000 Jetta runs rough, shudders on cold start only on wet days.

This is an issue I've had off and on for, embarrassingly, at least a year: On misty or wet mornings, everything starts out fine but, a few minutes into the drive (like clockwork. I even know the ...
-2
votes
2answers
55 views

Engine oil in coolant

There's is oil appearing in the engine coolant, does this mean i have to buy a new engine? The car is a 2003 Ford Focus with 180k miles.
0
votes
1answer
41 views

Oil consumption per 1000 miles of normal driving [closed]

I have a 2009 Rav 4. My vehicle is being tested for an oil consumption problem. The sump is a quart down after driving only 1000 miles, is this normal?
8
votes
3answers
3k views

Should I run my generator dry in preparation for storage?

I think this is on-topic after reading the FAQ, so I figured I'd go ahead and ask. I gave my gas generator its scheduled 3-month interval "workout" last night, and after letting it run for about 30 ...
1
vote
0answers
13 views

Troubleshooting PO705 code on 1996 Nissan pick-up truck 2.4 liter engine

I took my Nissan pick-up truck to the smog station, and this code appeared. This made it fail the smog test. What can I do to fix the problem?
4
votes
2answers
27 views

Troubleshooting P0507 code on 05 KIA Spectra?

I bought an 05 Kia Spectra EX for my daughter. The engine is throwing a P0507 code which is Idle Air RPM greater than expected. I did some research and apparently this is a pretty generic code that ...
3
votes
0answers
40 views

Overwhelming the Eng. management system, is there specific course of action to recover faster

Citroen C4 2005, Petrol, UK Yesterday I managed to overwhelm my car (for the second time I've been having it, first time was about half an year go). What happened was I was at a rather busy stop ...
4
votes
4answers
93 views

Can I use modern brake cleaner on exterior engine parts?

I want to clean the cylinder fins of my BMW R80GS 1991 with brake cleaner and a brush. If I am careful to not get it on any rubber parts or gaskets is it generally safe to use on the aluminum parts? ...
5
votes
1answer
72 views

Pivoted curved-path piston engine

Years ago, I saw a documentary about engine efficiency where people were testing a pivoted, curved-path piston engine. The claim is that the standard piston engine, with straight up-and-down path, ...
5
votes
0answers
27 views

Timing chain for a sunfire [closed]

Exhaust , intake & the other one at the bottom are lined up when I start after a full rotation they are not, what am I doing wrong?
1
vote
3answers
89 views

Is V-TEC Reliable?

I'm thinking of purchasing a 2001 Honda Civic that has v-tec on the side panel of the drivers side. Are V-TEC engines reliable, and are they well known for performance? The car I'm thinking of has ...
3
votes
1answer
40 views

What is causing my starter to arc?

I put a new solenoid in and went to start the motor. The starter ran continuously with the key off. I overrode the solenoid and tried hooking the ground to the engine, and I touching the positive ...
2
votes
1answer
59 views

Is an exhaust mute bad for 2 stroke engines? [closed]

Will an exhaust baffle have any bad effects on a 2 stroke engine if it's used all of the time?
3
votes
2answers
82 views

Should I remove the rings when cleaning a piston?

I want to clean my piston in a small ultrasonic cleaner (with distilled water). Do I need to remove the piston rings to do so, or can I leave them on and make sure it dries completely? If I replace ...
3
votes
1answer
38 views

Engine block (?) break, please confirm and suggest causes - 2003 Suburban

There was no indication of a problem last time the vehicle was driven. This morning when starting there was immediate clang/grind sound and rocking of the vehicle. Motor oil began leaking below the ...
4
votes
1answer
33 views

1997 Subaru WRX STI Type R - Strange and occasional turbo lag

After a longer drive (45 minutes on highway) my turbo is spooling but not putting power to the tires. The revs just kinda bounce there like it's hitting a limiter but it's only around 5k rpm. This ...
2
votes
1answer
32 views

BMW R1200GS LC Warm Up

How long should I warm up the engine before starting casually riding it in the city for keeping the engine as healthy as possible? Not at all, 30sec, 5 min or longer? And how long NOT to warm up ...
1
vote
1answer
29 views

dirt bike low rpm lugging

I have a 84 Honda XL350R. I know redlining a dirt bike is not good, but what about lugging in a high gear? When I say lugging I mean lugging.(no throttle whatsoever, can say the 4 stroke cycle suck,...
7
votes
1answer
380 views

Fast idle when engine is hot

I have a 2001 Buick Century. Lately, after driving around long enough for the engine to get hot, the idle speed will sometimes race. The car will want to surge forward even when I'm not giving it ...
8
votes
2answers
173 views

BSFC (Brake Specific Fuel Consumption) - How is this a beneficial measurement?

Brake Specific Fuel Consumption or BSFC Measuring various attributes of an ICE (Internal Combustion Engine) and how it performs certainly gives a greater understanding of how a particular ICE ...
4
votes
1answer
28 views

I have a 2002 Mitsubishi L300 SWB Van - Can it get too cold to start it without damaging it?

It's currently with me in the mountains where it gets very cold, is there any chance of me damaging it by starting it? I started it 3 days ago and let it run for like 15 mins, but haven't since. It's ...
1
vote
0answers
29 views

Nil HydroCarbon in the exaust

If hydrocarbons (HC) are nil and Carbon Monoxide (CO) is 0.33% and Carbon Dioxide (CO2) is 14% Why does the HC show up as nil? Is there a problem with having no HC readings?
6
votes
1answer
92 views

How do I make a self start bike using a Hero Honda CD 100?

Very, very new to this community. I want to customize my old bike with a self start along with user authentication via Bluetooth using a smart phone. I can make the electronics part (Means Software ...
1
vote
2answers
51 views

2003 Dodge Ram 1500 3.7 backfires and won't stay running

*****update***** We have checked timing, grounds, sensors, everything suggested. New idle control valve, and reset computer. Truck turns over- wont start. Seems like our only option is to replace the ...
3
votes
1answer
16 views

08 Silverado 5.3 cold start exhaust smoke and engine stall

For some time now I've been getting a considerable amount of dark smoke from my tailpipe on cold starts which I believe to be an oil burning issue. I have an oil consumption test in progress, so far ...
2
votes
3answers
4k views

Problem starting Husqvarna Kohler 20 hp Gas Powered Riding Mower

I am pretty new at this but I'm trying to learn more about my lawn mower. I am having problem starting the lawn mower, I've tried the following steps to diagnose the problem ... maybe I can get more ...
3
votes
1answer
44 views

Hero Passion Pro - Choke Issues

I have a Hero Passion Pro Motorcycle. It does not get started when the choke is on. It does start when the choke is turned off? The engine produces a disturbing noise and smoke goes out when the ...
3
votes
1answer
14 views

Terracan 2.9 crdi 2004 won't start

Wile driving i activated the high beam (headlights) and the rpm-meter started flickering for a moment and then dropped down to 0. Stopped the car and shut of the engine for 10 min for other reasons. ...
1
vote
0answers
19 views

Multiple misfire on a 1998 Infinity Code

I bought a 1998 Infinity, and it has been running poorly, with a poor gas usage. I went and had a parts store run the computer, It gave me the code Multiple miss fire, along with Knock sensor, Evap ...
1
vote
0answers
34 views

BMW 520d e60 2008 diesel engine won't start after switching off

I have a strange behaviour of my car. Engine starts well at any weather condition but after driving and switched off engine cannot start again for 20 - 40 minutes. After this time it starts like ...
4
votes
12answers
18k views

What can I do to give my lawn mower more power?

I have a 21" Craftsman push lawn mower with a Briggs and Stratton 7 hp engine that is about 6 years old. I've got it cutting on the highest setting, and it still has issues cutting the grass without ...
4
votes
1answer
35 views

Stuck valve, loss of pressure. Risky or only poor performance?

I have a 1998 Toyota Tacoma 2.7L 4cyl with 202,000. The engine has been running rough and will occasionally sputter and die when I let off the gas pedal. I had it diagnosed and they think it's a ...
7
votes
3answers
16k views

What is a rod knock?

What is a rod knock? What causes a rod knock, how bad is a knocking rod, and how can I tell if a rod is knocking?
4
votes
1answer
73 views

Triumph America 2002 running lean on one cylinder

I have a problem with my America 800 it's running lean on the right cylinder and when I adjust the mixture screw it makes no difference. The mixture was checked using an afr meter. The rubbers ...
0
votes
1answer
22 views
7
votes
1answer
100 views

Warm fuel injected engine stutters when accelerating

I have a 1994 Honda Concerto 1.5l gasoline car, fuel injected. When the engine is cold there are no accleration problems. But once it warms up it stutters if I step hard on the gas. When it does ...
2
votes
0answers
32 views

2007 Nissan Quest RPM issues

I have a 2007 Nissan Quest 3.5S. I notice that exactly at 20mph the rpm will be at a specific rpm then fluctuate to a higher rpm then come back down to normal rpm. Is this normal?
3
votes
1answer
39 views

Burning Smell and smoke

I know almost nothing about cars, I have an 05 Vauxhall Corsa 1.2 The other day I had to brake hard, like the hardest I've ever braked, but it wasn't full foot down. As I stopped, I noticed a large ...