General internal combustion engine questions.

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1answer
391 views

black smoke from maruti 800 1996 model

I have purchased a second hand maruti 800(1996 model) car and is in good running condition, but black smoke is coming out from the engine. I took to mechanic and he said that, the black smoke coming ...
3
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2answers
2k views

Host of small performance problems in 2006 Hyundai Elantra

I bought a used 2006 Hyundai Elantra (Automatic) back in early 2011. At the time, I was needed to have a car quick, and it seemed like a good deal, but the longer that I've owned it, the more problems ...
2
votes
1answer
147 views

What are the functions of Finger Follower, Lash Caps & Lash Disks and Seat Inserts?

I have googled all teams, but do not understand well from the result Finger Followers? (I see many website talk about rocker arms, but what is finger follower? Are they for different types of engine ...
3
votes
2answers
527 views

2013 Yamaha XT250 engine clicking/ticking noise

I just bought my xt250 as my first bike after getting my permit about a month ago. It's 2013. At 100 miles I dropped the oil and changed the filter. As a small woman I've also installed lower links to ...
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0answers
30 views

Is there any disadvantage of shifting to Neutral at high speed? [duplicate]

I would like to confirm whether shifting the vehicle to Neutral while at high speed in order to stop the vehicle is bad or not in terms of fuel efficiency. I had a word with some of my collegues and ...
4
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2answers
235 views

Dealership Installed “Oversized” Oil Drain Plug As Solution

In this question, we discuss stripped oil pan threads. I learned it is a result of user error - over tightening and cross threading, by the dealership I consistently go to. Many people have come ...
3
votes
1answer
111 views

Check engine light between 1300-1800 RPM

I have a 1995 gmc Sierra hd with the 6.5L turbo Diesel engine in it. I just recently bought it and when ever I hold around 1300-1800 rpm the check engine light comes on, when I take my foot off the ...
6
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1answer
913 views

What is this loud semi-regular clicking on a 2001 Honda CR-V?

Due to the nature of my problem I've had little success on Google. I appreciate any help. I have a 2001 Honda CR-V EX with 130000 miles on it and I'm the original owner. The week prior to my ...
5
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2answers
1k views

Oil pan threads stripped?

EDIT Helpful links on how threads got stripped and by who: http://tl.acurazine.com/forums/showthread.php?t=878261 Seems to be a common problem with some shops, where they don't take good care. ...
0
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2answers
73 views

Purchasing a Used Car - Advice [closed]

I'm looking into purchasing my first vehicle. I have a friend who's really into buying/selling VW's and he has a Jetta from the early 2000's with 240 000 km on it that he insists is a great deal and ...
2
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1answer
175 views

Where to pour oil into the engine (BMW E34)?

As the title says. Also, how to open the access point (if it non trivial). (It's an M50B25TU engine)
5
votes
1answer
120 views

Would a snapped valve necessarily seize the engine?

Long story short, after a brief near-redline excursion (a long tunnel and open windows may have been involved), and about 10 minutes of gradually loudening TAK-TAK-TAK-TAK that couldn't be drowned out ...
5
votes
1answer
216 views

Supercharger Components That Can Fail

I have a 1998 Pontiac Grand Prix GTP, with the supercharged 3800. I recently made a trip from Meridian, MS to Cincinnati, OH, and back again (roughly 600 miles one way). With the car being relatively ...
5
votes
2answers
76 views

Can a full teardown of my 318 TDS (1996 1.7 Gasoil) E36 engine have bad side effects?

I would like to get more acquainted with the engine of my car, learn mechanics, and also just clean the engine of accumulated dirt and grime. As such, I am considering tearing down the engine. For ...
4
votes
1answer
363 views

Grinding Sound at Specific RPM/Speed

I have a 2011 Ram 1500. For about a month I thought I was hearing a clunk between 2nd and 3rd gear. I finally decided to listen carefully by turning my radio off. I now certainly notice it, but it is ...
0
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2answers
174 views

Torque and engine power [duplicate]

What is the relation between Torque and engine power? Just wanted to know how power is distributed to wheels in a car.
0
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2answers
95 views

Why doesn't the engine coolant dry up while the engine is running?

Why can't coolant dry inside the engine during engine operation?
2
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2answers
8k views

What is the purpose of a drive-shaft?

what is a drive-shaft and why we need it in a car? I do get the point of having crankshaft (using Wikipedia) but still confuse with drive-shaft
-4
votes
1answer
98 views

Why need to change gear in car? [closed]

Could someone let me know why it is necessary to change from gear to gear ?What is the scientific foundation? I heard " The higher your speed the higher your gear, the lower your speed the lower your ...
2
votes
1answer
351 views

Ford Fiesta - the colour of the water in the water container

I own a hatchback ford fiesta. I took my car out for a drive today for 10 minutes and when I came back, I opened the hood and checked that the water in the water container was quite hot (not ...
1
vote
1answer
287 views

2002 Chevy Malibu spark plugs

Three of the spark plugs in my 2002 Chevy Malibu are easy to reach and change, which I did successfully. The other three spark plugs are difficult to reach, difficult to see, and are in a position ...
2
votes
3answers
303 views

VW Jetta II - engine misfires when climbing a hill

This is a VW Jetta made in 1984 with 1.6L petrol engine (code "EZ"). It starts OK (though if it has been a wile since last start, it takes some cranking to start the engine), but when climbing a hill, ...
2
votes
2answers
195 views

Does the a gasoline or diesel engine appy fuel at high speeds when not pressing the pedal and more

Let say I directly connect a small engine to my bicycle, and that I'm superman who can overcome any force. Then I start cycling (using my legs...) - the engine starts to rotate, even though I haven't ...
2
votes
1answer
126 views

motorcycle oil for m50B25TU (BMW E34)?

I just bought an e34 from a friend and he said he uses liqui moly racing synth 10w-50 for the engine. My mechanic was quite surprised when I told him and said I shouldn't use that, instead use real ...
3
votes
1answer
77 views

Corsa Sport (2007) low compression cylinders 2 & 4

I have been having trouble with my Corsa. It sometimes just cuts out or does not want to start at random times. I have had the car serviced, I have had the starter motor replaced & am now having ...
4
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1answer
237 views

2001 Pontiac Grand Am SE oil in the coolant

Recently my car started chugging and "vibrating" at low speeds, and the check engine light is flashing on and off. On inspection, I found oil in the coolant. I don't know a lot about cars, but a ...
2
votes
1answer
117 views

Safe way to clean oil sludge around the engine?

My Case 85xt Skid Steer has a hydraulic leak somewhere but the engine area is covered in oil sludge so I can't tell where it is coming from. Is it safe to use de-greaser and or water around the engine ...
3
votes
1answer
1k views

2000 VW Golf TDi (Mk. 4) grey smoke from exhaust before engine has warmed up

I have had my Golf for 8 years. It’s had good maintenance and a the record is kept by my dad. It’s just passed its MOT (Ministry of Transportation) test, and the mechanic mentioned that the tappets ...
2
votes
3answers
839 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 ...
3
votes
1answer
2k views

How do I find a vacuum leak? I'd highly prefer not to use a carb cleaner spray

The car is a 1998 Oldsmobile Intrigue with 3.8L V6 engine (3800 Series). I've been doing my research and due diligence, but please understand I'm very inexperienced with automobiles. I went to ...
3
votes
1answer
2k views

OHV vs. OHC: which is faster in speed, horse power?

What are the main differences in OHC and OHV engine designs, and which is faster or more powerful? Also, which is more reliable?
0
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1answer
66 views

engine speeds on startup (wont idle) after sitting for years - 1986 honda civic

Engine speeds on startup (wont idle) after sitting for years - 1986 honda civic. As soon as I turn the key on it will keep speeding up higher & higher.
2
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2answers
139 views

SB350 cutout at freeway speed, revs fine in neutral

Was hoping someone could help me out with an issue I'm having since I'm running of ideas... In case it helps, its a 71 Nova with a small block 350. Carbuerated and HEI, without any computer chips or ...
4
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2answers
4k views

Diesel Engine difficult to start

I have a diesel powered Audi A4 B7 (2006) 2.0TDi (the 170BHP variety) with a manual gearbox, which I've owned for around 18 months. The car has just short of 100k miles and has a full dealer service ...
1
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2answers
250 views

Can an Idle Control Valve cause backfiring and can it be cleaned

I am pulling codes for my engine indicating a faulty idle control valve. The vehicle at idle seems to hunt jumping between about 800rpm and 1100rpm. It happens maybe every 20 seconds. If I accelerate ...
0
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2answers
562 views

VW 1.4 TSI EA113 Variations

What does VW do to improve HP and Torque from their 1.4 TSI engine? e.g.: CAXA: 90 KW @ 5000 200 NM @ 1500-4000 CAVD 118 KW @ 5800 240 NM @ 1500-4500
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2answers
59 views

What do these lights mean?

When I stop the car (by hitting the brake pedal), the engine all of a sudden stops while on drive. Here are the lights I get: What do they mean? Is it a battery problem?
2
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0answers
336 views

Toyota Avensis Intake Manifold Rattle Fix - quesion about gasket

I have a Toyota Avensis which has the intake manifold rattle problem. I asked the dealer for a price on the new part and he quoted me €400. From a breakers yard they are hard to get and the going rate ...
1
vote
2answers
96 views

2003 Acura TLS running hotter than usual

I'm having some concerns with my car's engine temperature. Last weekend after being stopped at an intersection, the engine temperature went up higher than usual, about 75% of the way to the red line. ...
6
votes
2answers
858 views

Really high idle after tightening spark plugs

I had a very nasty tick in my engine after doing a bunch of work to it, I just redid my chain tensioner which went a long way to fixing it, then I found that spark plugs could cause a tick, so I ...
3
votes
0answers
214 views

Brake Specific Fuel Consumption of 2-stroke vs 4-stroke

How much fuel do various types of engines burn per power output? I'm especially interested in naturally aspirated piston engines, and comparing two-stroke to four-stroke. The wikipedia article gives ...
2
votes
1answer
141 views

Cold start Squeak noise

I have an 04 Toyota Camry Solara. The car is in very good condition at 165k miles. Although since two winters ago I have noticed only in the cold mornings when I first start the car there is like a ...
4
votes
1answer
198 views

When I remove a spark plug is it bad news if dirt or grime falls into the engine

Despite my best effort to clean up a corroded spark plug and blowing the area with an airline before removing would it be bad news if dirt or grime falls into the engine in the process of removing it? ...
0
votes
1answer
122 views

How to know if a '97 Ford Escort Engine is Federal Emissions or California Emissions

I did a search on the VIN and the engine type is listed as: 2.0L I4 SPI Can anyone tell if it is California or Federal Emissions? From what I've been told they have completely different intake ...
3
votes
1answer
695 views

Maxima (2002) MAF Sensor Failures

I have a 2002 Nissan Maxima that I've owned since 2003. I'm now on my sixth Mass Air Flow (MAF) sensor. What seems to wipe them out is hard acceleration (3/4 throttle - not so extreme as to induce ...
3
votes
1answer
199 views

How often should spark plug wires be replaced?

I last replaced them with the plugs about 4 years/60-70k miles ago. I bought platinum plugs I if I remember correctly, so I still got some life on those. The car (2001 Buick Regal) is still in good ...
1
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1answer
144 views

Why there is no injection on 1st and 4th cylinders in Fiat Punto?

I have Fiat Punto 2 1.2 with LPG (sequence, stag 4). There is problem with the injection on the 1st and 4th cylinders. Sometimes it works and sometimes it doesn't. 2nd and 3rd work without problems. ...
7
votes
2answers
551 views

What is the likelihood that my crankshaft is warped?

This may be an involved question so bear with me. :) I have a 1998 Honda Accord EX (4cyl) with 281xxx KM, and last week I was told by my mechanic that the harmonic balancer is warped. And in fact, ...
3
votes
2answers
382 views

High-pitched squealing coming from engine

I Have a Datsun Safari 1983 2,8L petrol. Recently I was driving off road with it and the next morning the fan belt was making this squealing noise. So I adjust it and all was well. 300km later a new ...
5
votes
4answers
3k views

How reliable is a second-hand Subaru 2.5 RS 04-05?

Basically, I've been a Subaru enthusiast for a few years but never been able to purchase one because I'm still a student. However, this summer I will be able to. The issue is that I need a reliable ...